Santerno DCREG2 Series User manual

•15P0059B3 •
DCREG2
DCREG4
USER MANUAL
28/05/18 R.07
SOFTWARE VERSION D5.02
• This manual is an integral and essential part of the product. Carefully read the instructions contained
herein as they provide important hints for use and maintenance safety.
• This device shall be used only for the purposes it is aimed at. Any other use is to be considered as
improper and dangerous. The manufacturer is not responsible for any possible damage caused by
improper, erroneous and irrational uses.
• Elettronica Santerno are responsible for the device in its original setting.
• Any changes to the structure or operating cycle of the device must be performed or authorized by
Elettronica Santerno’s Engineering Department.
• Elettronica Santerno are not responsible for the consequences resulting from the use of non-original
spare parts.
• Elettronica Santerno reserve the right to make any technical changes to this manual and the device
without prior notice. Any misprint or spelling mistake will be edited in the new versions of this manual.
• Elettronica Santerno are responsible for the information contained in the original version of the Italian
manual.
• The information contained herein is Elettronica Santerno’s property and cannot be reproduced.
Elettronica Santerno enforce their rights on the drawings and catalogues according to the law.
Elettronica Santerno S.p.A.
Via della Concia, 7 –40023 Castel Guelfo (BO) Italy
Tel. [phone] - Fax [phone]
santerno.com [email protected]
En glish

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REVISION INDEX
The following subjects covered in this 15P0059B3 User Manual (revision R.07) have been added,
changed or suppressed with respect to the previous revision R.06.
Logo ENERTRONICA GROUP added.
Nameplate modified.
Sections TRANSPORT AND HANDLING, UNPACKING and SCHEDULED MAINTENANCE added.
Indications about Decisive voltages according to EN 61800-5-1 (class A, B or C) added.
Table for UL-APPROVED FUSES added.
Table for SHORT-CIRCUIT CURRENT added.
Notes for CONVERTER AND MOTOR GROUND CONNECTIONS added.
Normative references for LOW VOLTAGE DIRECTIVE (2014/35/EU) and ELECTROMAGNETIC
COMPATIBILITY DIRECTIVE (2014/30/EU) updated.
Imot and Iarm nom nomenclatures rectified for OVERLOAD CAPABILITY.
Minimum value for parameter P010: Maximum speed rectified.
EMC CHARACTERISTICS AND INPUT FILTERS section updated; table for Class B external filters
added.
References to old control boards or to older SW versions than the currently implemented version
removed.
OTHER MANUALS MENTIONED
The following manuals from Elettronica Santerno are mentioned throughout this User Manual:
•16B0301B3 PC-DCREG INTERFACING VIA MODBUS
•16B0221B3 PC-DCREG INTERFACING VIA PROFIBUS-DP
•16B0211B1 DCREG FIRMWARE UPDATING VIA SERIAL COMMUNICATION
•15P0068B1 CU400 –User Manual

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TABLE OF CONTENTS
REVISION INDEX......................................................................................................................................... 2
OTHER MANUALS MENTIONED................................................................................................................ 2
TABLE OF CONTENTS................................................................................................................................ 3
1 DELIVERY CHECK.............................................................................................................................. 9
1.1 NAMEPLATE............................................................................................................................... 9
1.2 TRANSPORT AND HANDLING................................................................................................ 10
1.3 UNPACKING............................................................................................................................. 11
2 START-UP......................................................................................................................................... 13
2.1 INTRODUCTION....................................................................................................................... 13
2.2 PRELIMINARY CHECKS.......................................................................................................... 13
2.3 SCHEDULED MAINTENANCE................................................................................................. 14
2.4 MAIN CHECKS AND CONFIGURATIONS............................................................................... 15
2.5 SPEED CONTROL MODE OPERATION.................................................................................. 17
2.6 RAMP CONFIGURATION IN SPEED CONTROL MODE ........................................................ 18
2.7 SPEED CONTROL OPTIONS .................................................................................................. 18
2.8 CURRENT (TORQUE) CONTROL MODE OPERATION......................................................... 20
2.9 CURRENT LIMIT CONTROL OPTIONS................................................................................... 21
2.10 ANALOG AND DIGITAL OUTPUTS ......................................................................................... 21
2.11 BACKUP AND RESTORATION OF STORED PARAMETERS................................................ 22
3 GENERAL CHARACTERISTICS....................................................................................................... 23
3.1 GENERAL DESCRIPTION........................................................................................................ 23
3.2 RATINGS .................................................................................................................................. 28
3.3 DCREG SIZE 1 OVERALL DIMENSIONS................................................................................ 33
3.4 DCREG SIZE 1 THROUGH-PANEL ASSEMBLY..................................................................... 34
3.5 DCREG SIZE 2 OVERALL DIMENSIONS................................................................................ 35
3.6 DCREG SIZE 2A OVERALL DIMENSIONS.............................................................................. 36
3.7 DCREG SIZE 2 AND SIZE 2A THROUGH-PANEL ASSEMBLY.............................................. 37
3.8 DCREG MODULAR.S SIZE A POWER SECTION OVERALL DIMENSIONS ......................... 38
3.9 DCREG MODULAR.S SIZE B POWER SECTION OVERALL DIMENSIONS ......................... 39
3.10 DCREG MODULAR.S SIZE C POWER SECTION OVERALL DIMENSIONS......................... 40
3.11 DCREG MODULAR.S SIZE D POWER SECTION OVERALL DIMENSIONS......................... 41
3.12 DCREG MODULAR.S SIZE E POWER SECTION OVERALL DIMENSIONS ......................... 42
3.13 DCREG MODULAR.S SIZE F POWER SECTION OVERALL DIMENSIONS.......................... 43
3.14 DCREG MODULAR.S SIZE G POWER SECTION OVERALL DIMENSIONS......................... 44
3.15 DCREG MODULAR.S SIZE H POWER SECTION OVERALL DIMENSIONS......................... 45
3.16 DCREG MODULAR.S SIZE I POWER SECTION OVERALL DIMENSIONS........................... 46
3.17 DCREG MODULAR.S SIZE J POWER SECTION OVERALL DIMENSIONS.......................... 47
3.18 DCREG MODULAR.S SIZE K POWER SECTION OVERALL DIMENSIONS ......................... 48
3.19 DCREG MODULAR.S SIZE L POWER SECTION OVERALL DIMENSIONS.......................... 49
3.20 DCREG MODULAR.S CONTROL UNIT OVERALL DIMENSIONS ......................................... 50
3.21 DCREG SIZE 1...2A POWER CONNECTIONS........................................................................ 51
3.22 DCREG MODULAR.S POWER CONNECTIONS..................................................................... 53
3.23 DCREG MODULAR.S POWER UNIT WIRING DIAGRAM ...................................................... 55
3.24 DCREG MODULAR.S CONTROL UNIT TERMINALS............................................................. 56
3.25 SUPPLY AND POWER TERMINALS....................................................................................... 57
3.26 LEGEND FOR POWER CONNECTIONS................................................................................. 59
3.27 CROSS-SECTIONS OF THE POWER CABLES AND SIZES OF THE PROTECTIVE DEVICES
61
3.28 SWITCHING THREE-PHASE INDUCTANCE .......................................................................... 62
3.29 UL-APPROVED FUSES............................................................................................................ 63
3.30 SHORT-CIRCUIT CURRENT ................................................................................................... 64
3.31 CONVERTER AND MOTOR GROUND CONNECTION .......................................................... 65
3.32 DCREG SIGNAL CONNECTIONS............................................................................................ 66
3.33 SIGNAL TERMINALS................................................................................................................ 67
3.34 LEDS AND TEST POINTS ON THE CONTROL BOARD......................................................... 70
3.35 FEEDBACK FROM ENP/NR..................................................................................................... 71
3.36 MILLIAMPERE INPUT / OUTPUT SIGNALS............................................................................ 72
4 KEYPAD AND ALPHANUMERIC DISPLAY...................................................................................... 74

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4.1 KEYS OPERATING MODES .................................................................................................... 74
4.2 FUNCTIONS DISPLAYED BY THE LEDS................................................................................ 76
4.3 LOCAL OPERATING MODE..................................................................................................... 77
4.4 REMOING THE KEYPAD ......................................................................................................... 78
5 FIRMWARE STRUCTURE................................................................................................................ 81
5.1 GENERAL................................................................................................................................. 81
5.2 BLOCK DIAGRAM .................................................................................................................... 82
5.3 PARAMETER COPY................................................................................................................. 91
6 SPECIAL FEATURES........................................................................................................................ 93
6.1 AUTOTUNING .......................................................................................................................... 93
6.2 RAMPS OVER THE REFERENCE........................................................................................... 95
6.3 MOTOR POTENTIOMETER..................................................................................................... 96
6.4 CURRENT LIMITATION ........................................................................................................... 97
6.5 OPERATION QUADRANTS ..................................................................................................... 99
6.6 MOTOR HEATING THERMAL IMAGE................................................................................... 102
6.7 FIELD REGULATOR............................................................................................................... 103
6.8 CONFIGURABLE DIGITAL OUTPUTS................................................................................... 106
6.9 ADAPTIVE SPEED PARAMETERS........................................................................................ 108
6.10 ELECTROMAGNETS APPLICATION..................................................................................... 110
6.10.1 Drive Power Connections And Protecting Devices......................................................... 110
6.10.2 DCREG4 Electromechanical Diagram For Reference Switching................................... 113
6.10.3 DCREG4 Setting Parameter Values Different From Default Values.............................. 114
6.10.4 DCREG4 Operation Description..................................................................................... 115
6.10.5 DCREG2 Electromechanical Diagram For Reference Switching................................... 117
6.10.6 DCREG2 Setting Parameter Values Different From Default Values.............................. 118
6.10.7 DCREG2 Operation Description..................................................................................... 119
6.10.8 Energizing/Deenergizing Current Patterns ..................................................................... 120
6.10.9 Operation With Back-up Batteries.................................................................................. 121
6.10.10 Alarms ............................................................................................................................ 122
7 OPERATION PARAMETERS.......................................................................................................... 123
7.1 MEASURE PARAMETERS..................................................................................................... 123
7.1.1 M000: Reference Applied to the Ramps............................................................................. 123
7.1.2 M001: Speed / Voltage Feedback....................................................................................... 123
7.1.3 M002: Overall Speed/Voltage Reference ........................................................................... 124
7.1.4 M003: Armature Current Reference ................................................................................... 124
7.1.5 M004: Armature Current..................................................................................................... 124
7.1.6 M005: Thyristor Firing Delay Angle..................................................................................... 124
7.1.7 M006: Armature Voltage..................................................................................................... 124
7.1.8 M007: Back-electromotive force......................................................................................... 124
7.1.9 M008: Mains Frequency...................................................................................................... 125
7.1.10 M009: Mains Voltage...................................................................................................... 125
7.1.11 M010: Auxiliary Analog Input 1 to Terminals 11 and 13................................................. 125
7.1.12 M011: Auxiliary Analog Input 2 on Terminal 17.............................................................. 125
7.1.13 M012: Auxiliary Analog Input 3 on Terminal................................................................... 126
7.1.14 M013: Up/Down Internal Reference ............................................................................... 126
7.1.15 M014: Main Analog Input to Terminals 5 and 7.............................................................. 126
7.1.16 M015: Serial Connection Reference............................................................................... 126
7.1.17 M016: Field Bus Reference............................................................................................ 127
7.1.18 M017: Field Current Reference...................................................................................... 127
7.1.19 M018: Field Current........................................................................................................ 127
7.1.20 M019: Analog Output 1 on Terminal 8............................................................................ 127
7.1.21 M020: Analog Output 2 on Terminal 10.......................................................................... 127
7.1.22 M021: Final Internal State of Digital Inputs..................................................................... 128
7.1.23 M022: Digital Output State.............................................................................................. 128
7.1.24 M023: Field Regulator Internal Digital Input State.......................................................... 128
7.1.25 M024: Output Power....................................................................................................... 129
7.1.26 M025: Motor Torque....................................................................................................... 129
7.1.27 M026: EnP/Nr Frequency............................................................................................... 129
7.1.28 M027: Drive Life.............................................................................................................. 129
7.1.29 M028: PhaseSeq............................................................................................................ 129
7.1.30 M029: Digital Input State from Terminal Board .............................................................. 130
7.1.31 M030: Digital Input State from Serial Connection........................................................... 130

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7.1.32 M031: Digital Input State from Bus Field........................................................................ 131
7.2 PROGRAMMING PARAMETERS........................................................................................... 132
7.2.1 P000: Programming P/N..................................................................................................... 132
7.2.2 P001: Autotuning Command............................................................................................... 132
7.2.3 P002: Parameter Copy Command...................................................................................... 133
7.2.4 P003: Programming Level .................................................................................................. 133
7.2.5 P004: Page Displayed at Power on..................................................................................... 134
7.2.6 P005: Measure Parameter Display on the KeyPad Page.................................................. 134
7.2.7 P006: Measure Parameter Selection on the KeyPad Page............................................... 134
7.2.8 P010: Max. Speed............................................................................................................... 134
7.2.9 P011: Max. Armature Voltage............................................................................................. 135
7.2.10 P012: Speed / Voltage Reference Polarity..................................................................... 135
7.2.11 P013: Max. Positive Speed / Voltage Reference............................................................ 136
7.2.12 P014: Min. Positive Speed / Voltage Reference............................................................. 136
7.2.13 P015: Max. Negative Speed / Voltage Reference.......................................................... 136
7.2.14 P016: Min. Negative Speed / Voltage Reference ........................................................... 137
7.2.15 P030: Rise Ramp of the Positive Reference.................................................................. 137
7.2.16 P031: Fall Ramp of the Positive Reference.................................................................... 137
7.2.17 P032: Rise Ramp of the Negative Reference................................................................. 138
7.2.18 P033: Fall Ramp of the Negative Reference.................................................................. 138
7.2.19 P034: Stop Ramp of the Positive Reference.................................................................. 138
7.2.20 P035: Stop Ramp of the Negative Reference ................................................................ 139
7.2.21 P036: Rise Ramp of the Jog Reference......................................................................... 139
7.2.22 P037: Fall Ramp of the Jog Reference .......................................................................... 139
7.2.23 P038: Ramp Initial Rounding.......................................................................................... 140
7.2.24 P039: Ramp Final Rounding........................................................................................... 140
7.2.25 P040: Ramp of the Up/Down Internal Reference........................................................... 140
7.2.26 P050: Bridge A First Current Limit.................................................................................. 140
7.2.27 P051: Bridge B First Current Limit.................................................................................. 141
7.2.28 P052: Bridge A Second Current Limit............................................................................. 141
7.2.29 P053: Bridge B Second Current Limit............................................................................. 141
7.2.30 P054: First to Second Current Limit Speed.................................................................... 142
7.2.31 P055: Hyperbolic Pattern End Current Limit................................................................... 142
7.2.32 P056: Hyperbolic Limit Start Speed................................................................................ 142
7.2.33 P057: Hyperbolic Limit End Speed................................................................................. 142
7.2.34 P058: Current Limit Decrease Per Cent......................................................................... 143
7.2.35 P059: Ramp Over the Current Reference ...................................................................... 143
7.2.36 P060: Bridge A Current Overlimit ................................................................................... 143
7.2.37 P061: Bridge B Current Overlimit ................................................................................... 144
7.2.38 P062: Overlimit Digital Output Delay.............................................................................. 144
7.2.39 P070(076): Speed Loop Proportional Gain (Second Gain) ............................................ 144
7.2.40 P071(077): Speed Loop Integral Time (Second Time)................................................... 145
7.2.41 P073(079): Speed Loop Adapted Proportional Gain (Second Gain).............................. 145
7.2.42 P074(080): Speed Loop Adapted Integral Time (Second Time) .................................... 145
7.2.43 P082: Speed Parameter Auto Adaptation....................................................................... 146
7.2.44 P083: First Speed Error for Auto Adaptation.................................................................. 146
7.2.45 P084: Second Speed Error for Auto Adaptation............................................................. 146
7.2.46 P085: Speed Integral Time Increment During Ramp...................................................... 147
7.2.47 P086: Armature Compensation...................................................................................... 147
7.2.48 P087: Offset over the Speed Error ................................................................................. 147
7.2.49 P088: Armature Resistive Drop...................................................................................... 147
7.2.50 P100: Current Loop Proportional Gain ........................................................................... 148
7.2.51 P101: Current Loop Integral Time with Discontinuous Current Conduction................... 148
7.2.52 P102: Current Loop Integral Time with Continuous Current Conduction ....................... 148
7.2.53 P103: Armature Equivalent Resistive Drop .................................................................... 149
7.2.54 P104: Armature Equivalent Inductive Drop..................................................................... 149
7.2.55 P110: Field Regulator Voltage Loop Proportional Gain.................................................. 149
7.2.56 P111: Field Regulator Voltage Loop Integral Time......................................................... 149
7.2.57 P120: Speed / Voltage Main Input Polarity..................................................................... 150
7.2.58 P121: Speed / Voltage Main Input Bias.......................................................................... 150
7.2.59 P122: Speed / Voltage Main Input Gain.......................................................................... 150
7.2.60 P123: Main Current Input Polarity................................................................................... 151

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7.2.61 P124: Current Main Input Bias........................................................................................ 151
7.2.62 P125: Current Main Input Gain....................................................................................... 151
7.2.63 P126(129)(132): Polarity for Auxiliary Analog Input 1(2)(3............................................. 152
7.2.64 P127(130)(133): Auxiliary Analog Input 1(2)(3) Bias...................................................... 152
7.2.65 P128(131)(134): Auxiliary Analog Input 1(2)(3) Gain ..................................................... 152
7.2.66 P150(153): Analog Output 1(2) Configuration................................................................ 153
7.2.67 P151(154): Analog Output 1(2) Bias............................................................................... 154
7.2.68 P152(155): Analog Output 1(2) Gain.............................................................................. 154
7.2.69 P156: Analog IOut Polarity on Terminal 6 ...................................................................... 154
7.2.70 P157(158): Analog output polarity 1(2)........................................................................... 155
7.2.71 P170(176)(182)(188)(194): Digital Output 1(2)(3)(4)(5) Configuration........................... 156
7.2.72 P171(177)(183)(189)(195): Digital Output 1(2)(3)(4)(5) On Delay................................. 157
7.2.73 P172(178)(184)(190)(196): Digital Output 1(2)(3)(4)(5) Off Delay................................. 157
7.2.74 P173(179)(185)(191)(197): Digital Output 1(2)(3)(4)(5) Switching Level....................... 158
7.2.75 P174(180)(186)(192)(198): Digital Output 1(2)(3)(4)(5) Switching Hysteresis............... 159
7.2.76 P175(181)(187)(193)(199): Digital Output 1(2)(3)(4)(5) Contact Logic.......................... 159
7.2.77 P211(212)(213)(214)(215)(216)(217): Preset Run Reference 1(2)(3)(4)(5)(6)(7........... 160
7.2.78 P221: Jog Ramp Selection............................................................................................. 161
7.2.79 Jog Reference 1(2)(3) .................................................................................................... 161
7.2.80 P230: Min. Firing Angle .................................................................................................. 162
7.2.81 P231: Max. Firing Angle ................................................................................................. 162
7.2.82 P240: Low Pass Filter over the Speed / Voltage Error................................................... 162
7.2.83 P250: Up / Down Internal Reference Polarity................................................................. 162
7.2.84 P251: Up / Down Internal Reference Restoration at Power On ..................................... 162
7.3 CONFIGURATION PARAMETERS........................................................................................ 163
7.3.1 C000: Motor Rated Current................................................................................................. 163
7.3.2 C001: Current for Motor Thermal Protection ...................................................................... 163
7.3.3 C002: Time Constant for Motor Thermal Protection........................................................... 163
7.3.4 C010: Motor Field Rated Current........................................................................................ 164
7.3.5 C011: Field Weakening Start Rated Speed........................................................................ 164
7.3.6 C012: Rated Armature Voltage at Field Weakening........................................................... 164
7.3.7 C014: Standstill Field Current............................................................................................. 165
7.3.8 C015: Standstill Field Current Decrease Delay................................................................... 165
7.3.9 C016: Field Weakening Min. Current.................................................................................. 165
7.3.10 C017: Boost over the Field Current................................................................................ 166
7.3.11 C018: Boost Duration on Field Current........................................................................... 166
7.3.12 C030: Nominal Mains Voltage........................................................................................ 166
7.3.13 C050: Speed / Voltage Loop Operation.......................................................................... 167
7.3.14 C051: Current Loop Operation....................................................................................... 167
7.3.15 C052: Field Regulator Voltage Loop Operation.............................................................. 167
7.3.16 C060: First Quadrant Selection...................................................................................... 168
7.3.17 C061: Second Quadrant Selection................................................................................. 168
7.3.18 C062: Third Quadrant Selection..................................................................................... 168
7.3.19 C063: Fourth Quadrant Selection................................................................................... 168
7.3.20 C070: Feedback Selection ............................................................................................. 169
7.3.21 C072: EnP/Nr Pulses/Rev .............................................................................................. 169
7.3.22 C074: Tacho Transduction Ratio.................................................................................... 169
7.3.23 C090: AlarmAutoReset Number..................................................................................... 170
7.3.24 C091: ResetTime of AutoresetNumber .......................................................................... 170
7.3.25 C092: PowerOnReset..................................................................................................... 170
7.3.26 C093: Autoreset after Mains Failure............................................................................... 170
7.3.27 C094: StartSafety ........................................................................................................... 171
7.3.28 C100: LOCAL / MIXED Selection Enabling.................................................................... 171
7.3.29 C101: Delay from Starting Enabling ............................................................................... 171
7.3.30 C102: ZeroingTime......................................................................................................... 172
7.3.31 C103: Emergency Stop................................................................................................... 172
7.3.32 C105(106)(107)(108): Source Reference Selection 1(2)(3)(4)....................................... 173
7.3.33 C110(111)(112): Command Source Selection 1(2)(3) ................................................... 174
7.3.34 C120(121)(122): Analog Input 1(2)(3) Configuration...................................................... 175
7.3.35 C130(131)(132)(133)(134)(135): Digital Input 1(2)(3)(4)(5)(6) Configuration ................ 177
7.3.36 C141: Alarm A016/017 Trip Delay.................................................................................. 179
7.3.37 C142: Alarm A027 Trip Delay......................................................................................... 180

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7.3.38 C143: Alarm A028 Trip Delay......................................................................................... 180
7.3.39 C150: Alarm A001 Trip Disabling ................................................................................... 180
7.3.40 C151: Alarm A004 Trip Disabling ................................................................................... 180
7.3.41 C153: Alarm A006 Trip Disabling ................................................................................... 180
7.3.42 C154: Alarm A007 Trip Disabling ................................................................................... 181
7.3.43 C155: Alarm A008 Trip Management............................................................................. 181
7.3.44 C156: Alarm A010 Trip Disabling ................................................................................... 181
7.3.45 C157: Alarm A016/017 Trip Disabling ............................................................................ 181
7.3.46 C158: Alarm A027 Trip Disabling ................................................................................... 181
7.3.47 C159: Alarm A028 Trip Disabling ................................................................................... 182
7.3.48 C160: Serial Connection Drive Address......................................................................... 182
7.3.49 C161: Serial Connection Transmission Speed............................................................... 182
7.3.50 C162: Serial Connection Parity Control.......................................................................... 182
7.3.51 C163: Master Data Area Base Address.......................................................................... 183
7.3.52 C164: Serial Time Out.................................................................................................... 183
7.3.53 C165: Serial Response Delay......................................................................................... 183
7.3.54 C170: Load Type ............................................................................................................ 183
8 DIAGNOSTICS ................................................................................................................................ 184
8.1 ALARM PARAMETERS .......................................................................................................... 184
8.1.1 A001: Field Current Failure................................................................................................. 185
8.1.2 A002: Heatsink Overtemperature ....................................................................................... 185
8.1.3 A003: Armature Overcurrent............................................................................................... 185
8.1.4 A004: Load Loss................................................................................................................. 185
8.1.5 A006: Unstable Mains Frequency....................................................................................... 185
8.1.6 A007: Mains Phase Failure................................................................................................. 186
8.1.7 A008: Speed Feedback Failure........................................................................................... 186
8.1.8 A009: Field Overcurrent...................................................................................................... 186
8.1.9 A010: Armature Overvoltage............................................................................................... 186
8.1.10 A011: Auto Tuning Inductance out of Range.................................................................. 186
8.1.11 A012: Mains Frequency out of Range ............................................................................ 186
8.1.12 A013: Synchronization Failure........................................................................................ 187
8.1.13 A014: AutoTuning Resistance out of Range................................................................... 187
8.1.14 A015: Torque During Current AutoTuning...................................................................... 187
8.1.15 A016: Mains Overvoltage ............................................................................................... 187
8.1.16 A017: Mains Undervoltage ............................................................................................. 187
8.1.17 A018: AutoTuning Interrupted......................................................................................... 188
8.1.18 A019: Limitation During Speed AutoTuning.................................................................... 188
8.1.19 A020: ExternalAlarm 1.................................................................................................... 188
8.1.20 A021: Motor Thermal Protection Trip ............................................................................. 188
8.1.21 A022: Drive Thermal Protection Trip.............................................................................. 188
8.1.22 A023: Field Weakening Min. Current Limit..................................................................... 188
8.1.23 A024: EEPROM Missing or Blank .................................................................................. 189
8.1.24 A025: Wrong Parameters in EEPROM Work Area ........................................................ 189
8.1.25 A026: EEPROM Wrong Backup Parameters ................................................................. 189
8.1.26 A027: Serial Communication Failure.............................................................................. 189
8.1.27 A028: Connection with Field Bus Failure........................................................................ 189
8.1.28 A029: External Alarm 2................................................................................................... 190
8.1.29 A030: External Alarm 3................................................................................................... 190
8.1.30 A031: EEPROM Work Area Internal Data Altered.......................................................... 190
8.1.31 A032: Microcontroller Reset ........................................................................................... 190
8.1.32 A033: Unknown Failure .................................................................................................. 190
8.1.33 Additional Alarms............................................................................................................ 190
8.2 WARNING PARAMETERS..................................................................................................... 191
8.2.1 W002: Speed Feedback Loss............................................................................................. 191
8.2.2 W003: Hardware Limit Current not at Maximum Value ..................................................... 191
8.2.3 W004: Safe Restart after an Alarm Reset .......................................................................... 191
8.2.4 W005: Restart after an Emergency Stop from Keypad....................................................... 191
8.2.5 W006: Backup Values Stored in RAM................................................................................ 192
8.2.6 W007: Default Values Stored in RAM................................................................................. 192
8.2.7 W008: Wrong parameters in EEPROM Work Area............................................................ 192
8.2.8 W009: Wrong Parameters in EEPROM Backup Area........................................................ 193
9 EMC CHARACTERISTICS AND INPUT FILTER............................................................................ 194

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10 USER’S PARAMETERS DIFFERENT FROM DEFAULT VALUES................................................. 197

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1 DELIVERY CHECK
When receiving the unit, check that no damage is visible and its compliance with your requirements. To
do that, refer to the plate (see following figure) located on the converter front side. If the unit is damaged,
contact the insurance company or the supplier.
If the unit is stored before it is used, check that the storage area conditions are acceptable (temperatures
ranging from -20°C and +60°C, relative humidity lower than 95% and no dew).
The warranty covers any manufacturing faults. The manufacturer has no responsibility for damages
occurred during transportation or unpacking.
In no case and in no circumstances, the manufacturer will be responsible for damages or failures due to
wrong usage, abuse, wrong installation or incorrect temperature, humidity or corrosive materials, as well
as for faults caused by operation exceeding the rated values. The manufacturer will not be responsible for
consequential or accidental damages.
The manufacturer provides a 12-month warranty, starting from the delivery date.
1.1 NAMEPLATE
KEY
1. The device is called DCREG4.350. It is an AC/DC digital-operated drive.
2. The device main P/N and size P/N are detailed before and after a full stop respectively
(ELETTRONICA SANTERNO P/Ns).
3. The acronym identifies the configuration consisting of two full-control three-phase bridges in
antiparallel forming the drive power section.
4. The armature section can be supplied with a 500 Vac (max.) three-phase alternate voltage and
according to a 50/60 Hz frequency value, thus absorbing at rated load a three-phase alternate current
equal to 287 A.
5. The field section may be supplied with a single-phase alternate voltage equal to 200 … 500V ac and
according to a 50/60 Hz frequencyvalue, thus absorbing at rated load an alternate current equal to 15 A.
6. The control section may be supplied either with 380 … 500 Vac single-phase alternate voltage or with
a 24 Vdc direct voltage (considering, of course, a different terminal pair).
7. The device is able to supply 520 Vdc (max.) on the armature output, with continuous supply of 350 A
(with a maximum overload of 150 % of the nominal value at a preset duty-cycle).
8. The device is able to supply 425 Vdc (max.) on the field output, with a continuous supply of 1 5A.
8
5
7
6
4
1
2
3

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1.2 TRANSPORT AND HANDLING
The DCREG packing ensures easy and safe handling. Handling shall be done using a transpallet or a lift
truck with adequate carrying capacity, in order not to damage the product.
Figure 1: Lifting the packing from underneath

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1.3 UNPACKING
Get near the installation place, then unpack following the instructions provided below.
1. Cut with pincers the plastic straps that fix the package of the DCREG to the pallet.
2. Cut with a cutter the adhesive tape closing the box on the side where the package orientation
symbol is reproduced (see Figure 3).
Figure 2: How to open the packing
Figure 3: “This side up” pictogram
3. Remove the DCREG from its packing by lifting it from its sides. To avoid damaging the packing,
lift the product keeping it horizontal to the floor (see Figure 4).

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Figure 4: The DCREG is unpacked
4. Put all the packing elements in the box and store it in a dry environment.
Figure 5: DCREG packing box with the internal protective elements

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2 START-UP
2.1 INTRODUCTION
This section describes the main checks and operations which should be carried out to achieve an
excellent adjusting of the DCREG drive.
All information contained herein is directed to the Users being already familiar with the use of the keypad.
If need be, refer to the KEYPAD AND ALPHANUMERIC DISPLAY section for further information.
For a clearer drive operation, the drive operating mode is supposed to send references and control
sequence to inputs by means of the terminal board.
This section has to be considered as a simple and useful guide aimed at achieving a proper adjusting of
the device. It covers both the regulations regarding the most common applications and the setting up of
more specific configurations.
For further information about the function of the different hardware terminals or software parameters and
any additional details, refer to the specific sections of the manual.
In particular, it is strongly recommended to refer to the POWER CONNECTIONS and SIGNAL
CONNECTIONS sections for a correct use of the hardware terminals, as well as the BLOCK DIAGRAM
and the PARAMETER LIST section for a proper setting of the software parameters.
2.2 PRELIMINARY CHECKS
2.2.1 When installing the equipment, carefully read the information given on the stick-on plate fitted on
the front panel and make sure that the supply voltage value required to supply the power section at bars
L1-2-3 does not exceed the maximum value advised (standard value: 440 Vac for DCREG2 and
DCREG4). Check also that the supply voltages for the field regulator on terminals E1-2 and for the
control section on terminals 53-54 is included within the suggested range.
Of course, the latter requirement shall not be necessary whenever the user is going to supply the control
section with a 24 Vdc direct voltage on terminals 40-42. This is always possible even without making any
hardware modification.
NOTE
The standard equipment may be supplied on terminals 53-54 (control
section) with a single-phase alternate voltage between 380 … 500 Vac. On
demand, the device may be supplied on terminals 53-54 a with single-phase
alternate voltage between 200 … 240 Vac.
The standard equipment may be supplied through terminals E1-2 (field
regulator) with a single-phase voltage ranging from 200 to 500 Vac.
2.2.2 Check also that the device is not oversized compared to the motor rated current. That means that
the motor current value should not be lower than the 75% of the device rated current.
2.2.3 Carefully inspect the wiring by referring to the POWER CONNECTIONS and SIGNAL
CONNECTIONS sections of this manual. In particular, make sure that a NO auxiliary contact of the KM
contactor has been connected in series with the ENABLE contact on terminal 24.
2.2.4 Connect the shield of the screened cables relating to the analog signals to the ground potential as
directly as possible. Use the three collar-shaped cable fasteners situated on the bottom of the control
board supporting guard.

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2.3 SCHEDULED MAINTENANCE
If installed in an adequate place, the converter scheduled maintenance is reduced to a minimum. The
minimum maintenance intervals are indicated in the table below.
Maintenance tasks
Minimum frequency
What to do
Check heatsink;
clean, if required
Depending on dust concentration
(every 6…12 months)
See Heatsink section below
Check cooling fans;
replace, if required [*]
Depending on dust concentration
(every 6…12 months)
See Cooling fans section below
Replace cooling fans [*]
Every 6 years
See Cooling fans section below
[*] on models with forced air cooling only, i.e. from DCREG.100 and greater.
Heatsink
The cooling fans in the DCREG build up dust from air intake.
Check if the heatsink is clean.
If the heatsink needs to be cleaned, please contact Elettronica Santerno Customer Service.
Cooling fans
The minimum expected durability of the cooling fans of the DCREG is approx. 50,000 hours. Actual
lifetime is based on the operating conditions of the converter, the ambient temperature and the
environmental pollution.
The signs for imminent possible failures are noisy bearings of the fans or worn fins of the fans although
regularly cleaned.
If the DCREG is used in a crucial stage in a process, consider replacing the cooling fan as soon as these
symptoms occur.
Please contact Elettronica Santerno Customer Service to replace the cooling fans.

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2.4 MAIN CHECKS AND CONFIGURATIONS
2.4.1 Supply the control section and the field regulator of the device (except the power section). The
four LEDs which can be seen through the small rectangular slot on the cover should be off.
NOTE
Whenever the display shows an alarm condition, it is necessary to reset it by
simultaneously pressing the “PROG” and “SAVE” keys on the front keypad, or
by means of one of the configurable digital inputs, by programming
parameters C130(131)(132)(133)(134)(135) at the 0:Reset value (this
configuration is a default value on MDI1, terminal 28). Should the alarm not
disappear from the display (and therefore the alarm cause persists), refer to
the ALARM PARAMETERS section of the manual.
NOTE
Before changing the above mentioned parameters and any other parameter,
set the value of parameter P000 to 1.
NOTE
Any other setting up procedure described below should always be saved on
the EEPROM. The non-observance of said instruction shall produce the loss
of all data while turning off the device.
NOTE
The programming level is set in parameter P003; its default value is called
0:Basic. This parameter allows to access and modify few other parameters
only, as it is used for a quick and simple starting. If during the start-up
procedure some parameters which are not included in said programming level
must be changed, set parameter P003 to 1:Advanced.
2.4.2 When no alarm condition is stored, the display generally keeps on showing the Status page,
unless the KeyPad page has been programmed through parameter P004 (FirstPage). When no alarm
condition is stored, the Status page displays the Drive OK message, the software version which has been
installed, the drive type, the drive size and the max. supply voltage that may be applied to the power
section. Otherwise, the Alarms and Warnings are displayed on this page.
Here follows an example of such displaying messages.
Drive OK –D5.01
DCREG4.100 P440
By the example stated above, we understand that no alarm conditions are detected, that the installed
software version is D4.01, and that the device is a DCREG4 with continuous output current equal to 100A
and a maximum three-phase voltage applicable to the power section equal to 440V.
NOTE
The displaying of warning message W003 (Imax[T2] <100%) means that it is
necessary to turn the T2 trimmer completely clockwise, since a partial rotation
clockwise could result in a disagreement between the current limit and the
armature maximum current values to be obtained. More precisely, the
armature maximum current value could be lower than the one required.
The trimmer is located on the right side of the control board, near the two
seven-segment displays which can be seen through the small slot on the drive
cover.
2.4.3 Check the correct operation of the air-cooling unit (if any). Air blowing should be generated from
the bottom to the top.

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2.4.4 The device is already supplying the motor field winding, according to the economy function (Field
Economy) set in par. C014.
On parameter C010 (default value: 10%), set the field rated current percentage of the motor with
respect to the field rated current of the drive. The standard values of the drive field rated current are 5A for
DCREG.100max.,15A for DCREG.150min Size 1 and 35A for DCREG Size 2(A) and MODULAR.S.
If need be, you can also change the standstill field current on parameter C014 (default value: 10% of
C010) and the field decrease delay on parameter C015 (default value: 240s).
If a boost on the field current is to be set at the device starting, adjust the value of parameter C017
(default value: 100%) and parameter C018 (default value: 10s) accordingly by enabling the function
through one of the configurable digital inputs; set parameters C130(131)(132)(133)(134)(135) to the
11:FldFrcEnabled value. This, however, could have no effect if the field current increase does not produce
any remarkable field flux increase, thus limiting this function application.
2.4.5 If a dynamic regulation of the field current in field weakening mode is required - with a speed
feedback different than the armature feedback - besides programming par. C010 and C014, program the
motor armature nominal voltage in par. C012 (default value: 1000V), the value per cent of the field
weakening start max. speed in par. C011 (default value: 33%) and the limit at the field current min.
value in par. C016 (default value: 25% of C010).
As stated in the FIELD REGULATOR chapter, set the last value at approx. 75% of the min. motor rated
field current corresponding to its max. speed.
2.4.6 Make sure that the rated value of the power section supply voltage corresponds to the
indications stated in parameter C030 (default value: 400V): if necessary, change the value.
2.4.7 Access parameter C000 (default value: 100%) and set the percentage value of the armature
rated current of the motor with respect to the armature rated current of the drive.
If need be, also set a proper thermal constant on parameter C002 (default value: 300 s) by following the
general indications described in the chapter of this manual dealing with that parameter.
2.4.8 Choose the operating mode of the current loop through parameter C051 (default value: PI). It
is advised to leave the default selection of C051 at value 0:PI Operating in most cases, and to set C051
selection at value 1:Predictive=>J1 only when a very quick response is demanded with a DCREG4 in
enP/Nr or tacho feedback mode, unless the load inertial torque is much lower than the resisting torque.
2.4.9 When choosing the second mode (predictive algorithm), set jumper J1 from position 1 to position
0. Jumper J1 is located on board ES729/1 (installed inside the equipment on ES728/2 control board), then
perform current autotune and set parameter P001 to value 1:Current and follow the instructions
displayed (see also the AUTOMATIC TUNING section). By contrast, if the first mode (PI regulator) is
chosen, go on with the next step of this Procedure.
2.4.10 Access parameter C070 (default value: Tacho feedback: 80 … 250V) and make sure that the
speed feedback type which has been set corresponds to the one required.
2.4.11 Should the feedback be generated from a tacho, check the value set on C070 (among values 0-
1-2), which should match the terminal being used to receive the signal from the tacho.
Then, if the tacho transduction ratio set on parameter C074 (default value: 60V / 1000 RPM) is correct,
set the speed concerning the maximum reference in parameter P010 (default value: 2500RPM) in
r.p.m.
NOTE
Any value being set for parameters C074 and P010 should be programmed in
such a way that product C074•P010 does not exceed 25V if C070 = 0, 80V if
C070 = 1, 250V if C070 = 2. Otherwise, this will cause drive speed control
failure.

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2.4.12 Should the feedback be generated from an enP/Nr, check that the transduction ratio of the
supplied signal, which has been set on parameter C072 (default value: 1024 pulses/rev) is correct. If
necessary, change it accordingly.
The speed concerning the maximum reference (expressed in r.p.m.) should always be set on
parameter P010 (default value: 2500RPM).
NOTE
Any value being set in parameters C072 and P010 should be programmed in
such a way that product C072•P010 does not exceed 102.400k Hz (value
obtained from an enP/Nr supplying 1024 pulse/rev that can rotate at a speed
of max. 6000 RPM:
60
60001024
102400  
), in order to avoid possible speed
control faults caused by the drive.
2.4.13 Should the feedback be generated from an armature, set on parameter P011 (default value:
400V for DCREG4, 460V for DCREG2) the armature voltage corresponding to the maximum value (in
Volt).
2.4.14 Except for a DCREG2 model, a DCREG4 model with an armature feedback or whenever the load
inertial moment is largely variable (e.g. in a coiler), the speed automatic tuning may be performed at that
moment. Set parameter P001 to value 2:Speed and follow the instructions displayed (see also the
AUTOMATIC TUNING section).
2.4.15 Now RxI armature resistive drop autotuning is to be done by setting par. P001 to 3:RxI and
following the instructions displayed (see also AUTOMATIC TUNING chapter). On the other hand, if the
autotuning function is not performed and par. P088 is left at its default value (0V), the drive will not be able
to process the back-electromotive force and to display it in par. M007 (BEMF) and it will not be able to
keep the BEMF constant during the dynamic adjustment of the field current in field weakening mode or in
armature feedback stage (by means of the compensation function to be done through parameter P86,
with a value defined as a percentage of par. P088 value).
2.5 SPEED CONTROL MODE OPERATION
2.5.1 The previous section MAIN CHECKS AND CONFIGURATIONS has already covered the
programming procedure of the speed corresponding to the maximum reference, as far as the three main
types of speed feedback (tacho, enP/Nr, armature) are concerned.
As for the analog inputs, main input REF between terminals 5 and 7 is generally used (in common mode,
in differential mode, or by sending a 0(4) … 20 mA reference after adjusting jumper JP407 of the control
board in pos. 2-3). The ramp function may be applied to said input.
Alternatively, it is possible to use input IN 1 between terminals 11 and 13 (in common mode, in differential
mode, or by sending a 0(4) … 20 mA reference after adjusting jumper JP408 of the control board in pos.
2-3).
You can finally use input IN 2 between terminal 17 and 0V or input IN 3 between terminal 19 and 0V.
NOTE
Whenever a (0)4 … 20 mA reference is to be used, refer to the chapter
dealing with MILLIAMPERE INPUT/OUTPUT SIGNALS to know the value to
be programmed in the parameters relating to the Gain and Bias operators.

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ATTENTION
Make sure that, at maximum speed and maximum voltage, the output
armature voltage does not exceed the motor rated value.
NOTE
The operation stability is generally more critical when the speed maximum
value being set according to the maximum reference decreases. In order to
set maximum speed values being especially low, it is therefore
recommended to reduce the reference amplification through the Gain function
relating to the selected analog input (see the SPEED CONTROL OPTIONS
chapter), instead of adjusting the feedback.
2.5.2 The value of the reference for the jog run (jog) may be chosen among the three values set on
parameters P222 … P224 (default values: +5 %,-5 % and 0 % respectively), while the set value should be
selected via a combination of two MDIx configurable digital inputs (max.) by programming parameters
C130(131)(132)(133)(134)(135) at values 12:JogA and 13:JogB (these configurations are both default
values on MDI2 on terminal 30 and on MDI3 on terminal 32 respectively: see the table reported in the
chapter dealing with parameters P222 … P224).
2.6 RAMP CONFIGURATION IN SPEED CONTROL MODE
2.6.1 The reference applied to the ramps will be indicated in the following chapters of this Manual (and in the
BLOCK DIAGRAM) as Ref n. For this Ref n, some ramp times may be programmed; set the value on par.
P030 … P035 (defaultvalues:0s) or settheroundings throughpar. P038 and P039 (defaultvalues:0s).
NOTE
Between ramp times and rounding times, a certain ratio of inequality should be
proved. Said value is reported in the note in chapter RAMPS OVER
REFERENCE.
2.6.2 On the other hand, the jog run ramps are indicated by parameter P221 (by default, they have
also been applied to the Ref n reference) and, depending on the parameter setting, may also be indicated
by parameters P030 … P035 (default values: 0s) or by parameter P036 and parameter P037 (default
values: 0s).
2.6.3 The ramp and rounding times, indicated by parameters P030 … P035, P038, P039, may also be
changed in continuous mode from the outside, through one of the configurable analog inputs. To do that,
set parameters C120(121)(122) to one of values 3:Ramps reduct. … 7:tDN-reduction, otherwise they may
be set to zero through one of the MDIx configurable digital inputs by programming parameters
C130(131)(132)(133)(134)(135) to 7:Ramps Disabled..
2.6.4 In case of medium-duration ramps, set the integral time automatic increase during ramp
through par. P085 (disabled by default).
2.7 SPEED CONTROL OPTIONS
2.7.1 The signal entering analog inputs REF, IN1, IN2, IN3 may be set with the following operators:
Gain (with parameter P122, parameter P128, parameter P131 and parameter P134 respectively,
default values: 100%), Bias (with parameter P121, parameter P127, parameter P130 and parameter
P133 respectively, default values: 0%) and Polarity (with parameter P120, parameter P126, parameter
P129 and parameter P132 respectively, default values: Bipolar).
All these four inputs may be assigned to the Reverse operator (by means of programmable digital inputs
MDIx, by setting parameter C130(131)(132)(133)(134)(135) at 5:Reverse. This is the default configuration
for MDI6 on terminal 38).

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If the LOC SEQ LED is on or flashing, polarity may also be reversed by pressing the “REVERSE” key.
The internal reference, resulting from the application of the operators above, is displayed by par. M014,
M010, M011 and M012 respectively.
2.7.2 In order to obtain the Ref n reference applied to the ramps, it is possible to choose one of the
preset run references (up to a maximum of seven) preset in parameters
P211(212)(213)(214)(215)(216)(217) (default values: +5 %, + 20%, +10 %, 0 %, -5 %, -20 %, -10 %
respectively). To do so, select the reference concerned with a combination of max. three MDIx
configurable digital inputs, by programming parameters C130(131)(132)(133)(134)(135) at values
1:Preset Speed A, 2:Preset Speed B and 3:Preset Speed C (see the table contained in the chapter
dealing with parameters P211 … P217: the 1:Preset Speed A function is programmed by default on MDI4,
terminal 34). The above mentioned Reverse function may be applied to these preset running references
too. By introducing a preset running reference, the START contact closing is always required.
2.7.3 For the Ref n speed reference applied to the ramps, the user may select the allowable polarity
through par. P012 (default value: Bipolar). For said reference, the maximum value may also be defined
through parameter P013 and parameter P015 (default values: +100% and -100% respectively). This limit
is also valid for the n setpoint global reference. After programming a polarity of one sign only on parameter
P012, a minimum speed value is given both for the Ref n reference applied to the ramps and for n
setpoint global speed reference through p. P014 and p. P016 (default values: 0%). Anyway, disabling of
minimum speed can be achieved by closing one of the MDIx configurable digital inputs, once parameters
C130(131)(132)(133)(134)(135) have been programmed at value 9:MinSpdDisabled.
2.7.4 In case of tacho or enP/Nr feedback, and in the event of a feedback signal failure, it is possible to
set the automatic switching towards the armature feedback through par. C155 (default value: Alarm
enabled).
If the dynamic regulation of the field current in field weakening mode is enabled, par. P011 (default value
400 V) is to be set at the same value as par. C012 in order to keep the speed of rotation nearly constant in
case of feedback failure.
2.7.5 In case of armature feedback, the RxI drop compensation may be entered through par. P086
(default value: 100%) whose value represents the value per cent of par. P088 computed by the autotuning
function. The autotuning function may be enabled by setting par. P001 to 3:RxI.
2.7.6 Should the motor tend to turn slowly with a zero reference, i.e. when a speed error offset is
detected, it is possible to stop the motor by adjusting parameter P087 (default value: 0%).
2.7.7 A limitation of the firing angle value may be obtained both in the energy transfer towards the
load and in the energy regeneration towards the mains. Set parameter P230 (default value: 30° for
DCREG4 and 25° for DCREG2) and parameter P231 (default value: 150°) respectively.
2.7.8 To avoid possible speed overshoots due to quick variations of reference at constant load (drive in
current limit mode), or to avoid temporary speed losses in case of quick variations of load at constant
reference, it may be advisable to introduce the parameter auto adaptation (this function has been
disabled by default) through parameter P082 and any other related parameter. Refer to the ADAPTIVE
SPEED PARAMETERS chapter to know the different programming procedures required.

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2.8 CURRENT (TORQUE) CONTROL MODE OPERATION
2.8.1 A current control (torque) is generally required when tension controls are performed on a winding
or unwinding material or while controlling any machine integral to another from a mechanical point of view.
In fact, said conditions require a proper torque distribution.
2.8.2 In the first event, a simple external regulation of the current limit is generally requested by
using one of the configurable analog inputs; set parameters C120(121)(122) to one of values 8:Ext.
curr.lim. ... 10:BrdgB ext.lim. The polarity of the used signal may be selected on par. P126(129)(132)
(default value: Bipolar).
NOTE
For this operating mode, the speed reference should allow to keep the drive
in current limit condition at any time.
2.8.3 In the second case, a direct setting of the current reference is generally performed. To use the
REF main input between terminals 5 and 7 it is then possible to program parameter C050 as 3:Iref=Vref
(default value: PI operating) whenever a permanent configuration is required. Otherwise, it could be
advisable to close one of the MDIx configurable digital inputs by programming parameters
C130(131)(132)(133)(134)(135) at value 6:Slave Enabled whenever the current reference setting is to be
performed only through an external command enabling.
NOTE
A current reference setting may be performed on any REF, IN1, IN2, IN3
analog inputs, after programming them accordingly.
In particular, if the REF main input between terminals 5 and 7 is to be used,
the Gain, Bias and Polarity operators use distinct parameters (i.e. different
from the parameters enabled in case of voltage / speed reference). In
particular, the Gain function is programmed in parameter P125(default value:
100%), the Bias function is programmed in parameter P124 (default value:
0%), while the Polarity function is programmed in parameter P123 (default
value: Bipolar).
By contrast, if auxiliary analog input IN 1(2)(3) is to be used, parameter
C120(121)(122) is to be set at value 2:I loop add. ref. In addition, main
reference REF is to become a current reference, either permanently by
programming parameter C050 at value 3:Iref=Vref or temporarily by closing a
digital input set at value 6:Slave Enabled. For each of those two modes, main
input REF is to be connected to zero volt.
NOTE
For a drive couple operating in MASTER / SLAVE mode, the current reference
to be supplied by the master drive may be obtained on terminal 8(10) by
programming P150(153) = 4:Current ref. As the reference standard level
supplied by the MASTER drive is 5V at its rated current (M003 = 100%), if also
the SLAVE drive must supply its rated current - with said reference at REF
main reference between terminals 5 and 7 - gain P125 (IrefGain) is to be set
at 200%.