phytron MCD+ User manual

Manual 2102-A005 GB
+
MCD
Compact Stepper Motor
Power Stage for Wall Mounting

phytron
03/2008 Manual MA 2102-A005 GB
MCD+93–70
Compact Stepper Motor Power Stage
for Wall Mounting

Manual MCD+
MA 2102-A005 GB 2
©2008
All rights with:
Phytron-Elektronik GmbH
Industriestraße 12
82194 Gröbenzell, Germany
Tel.: [phone]
Fax: [phone]
Every possible care has been taken to ensure the accuracy of this technical manual. All
information contained in this manual is correct to the best of our knowledge and belief but
cannot be guaranteed. Furthermore we reserve the right to make improvements and
enhancements to the manual and / or the devices described herein without prior
notification.
We appreciate suggestions and criticisms for further improvement.
Please send your comments to the following e-mail-address: [email protected]
You´ll find the updated version of this manual on the website of www.phytron.de

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3 MA 2102-A005 GB
Contents
1MCD+..........................................................4
1.1Short Overview.....................................4
1.2Extent of Supply...................................6
1.3Signal Connector X3 ............................7
1.4ServiceBus Connectors X4 and X5......8
1.5Operating Modes..................................8
1.5.1Rotary Switch Mode.......................9
1.5.2ServiceBus Mode..........................10
1.5.3Bus Mode Exclusive......................11
1.6LED .....................................................11
2Technical Data Table ...............................12
3To Consider Before Installation.................15
3.1Qualified Personnel.............................15
3.2Safety Instructions...............................15
3.3Protective Measure Options for the
Operation of Power Stages .................16
3.4Putting into Service .............................17
3.4.1For Rotary Switch Mode................17
3.4.2For ServiceBus Mode....................18
4Dimensions and Mounting.........................19
5Mains Supply Unit .....................................20
5.1Insulation Overview.............................21
6Motor Connection......................................22
6.1Motor Connector..................................23
6.2Shielding..............................................23
6.3Wiring Schemes..................................24
6.4Motor Cables.......................................25
7Inputs and Error Output.............................26
7.1Inputs...................................................26
7.1.1Push-Pull- or OC-Controlling.........27
7.1.2Logic Level 24 V or 5 V.................27
7.1.3Control Pulse Input........................28
7.1.4Direction Input...............................29
7.1.5Boost Input....................................29
7.1.6Activation Input..............................29
7.1.7Reset Input....................................30
7.2Error Output.........................................30
8Rotary Switches ........................................32
8.1Rotary Switch Mode............................32
8.2ServiceBus Mode................................34
8.2.1USB-RS485-Converter..................35
8.2.2USB-Driver Installation.................. 36
9Bus Connection Configuration...................37
9.1Definition .............................................37
9.2Operating Parameters.........................38
9.2.1Extra Parameters ..........................42
9.2.2Examples ......................................43
Appendix A: Technical Details.......................45
A1 Full Step / Half Step / Ministep .............45
A2 Boost .................................................... 47
A3 Overdrive Function ...............................48
A4 Current Delay Time ..............................50
A5 Current Shaping CS .............................51
Appendix B.................................................52
B1 Warranty............................................... 52
B2 Trade Marks .........................................52
B3 ESD Protective Measures.....................52
Appendix C: Declarations of Conformity........53
Index .......................................................55

Manual MCD+
1 MCD+
In this chapter you’ll find a brief description of the power stage MCD+93-70.
1.1 Short Overview
Fig. 1: Operator’s controls
Ministep Compact Power Stage for 2-Phase Stepper Motors
The power stages type MCD are used for bipolar control of two-phase stepper motors with
phytron’s welltried technology, now with enhanced 4 quadrant chopper type current
control.
The operating parameters – run and stop current, step resolution, current delay time and
preferential motor direction – can be set either by rotary switches or by ServiceBus.
The ServiceBus allows configuration and programming via PC by software ServiceBus-
Comm®for Windows®.
In rotary switch mode the step resolution can be set to the following values: Full step, half
step, 1/4, 1/5, 1/8, 1/10 and 1/20 step.
You can select further step resolution up to 1/512 step in ServiceBus mode.
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With overdrive function, a dynamic boost function, the MCD offers a motor independent
compensation of the torque decrease for higher frequencies.
In ServiceBus mode the current shaping function (CS) can be activated for phase current
adaptation.
Motor currents from 0.3 to 9 APeak
Rotary switch mode:
Run and stop current can be individually set.
You can change between 2 ranges (I or II) by the rotary switch ‘Current range setting’:
Range I: from 0.3 to 3 APeak (0.2 to 1.6 Ar.m.s., 100 mA steps)
Range II: from 1.1 to 9 APeak (0.6 to 5.0 Ar.m.s., 300 mA steps)
ServiceBus mode:
Phase currents can be programmed in 100 mA steps.
Supply voltage DC
A DC voltage from 24 to 70 VDC can be connected to the supply voltage connector.
Inputs
Two possibilities of input level: The MCD power stage can be controlled with 5 V or 24 V
depending on the wiring.
The inputs Control pulse, Motor direction, Boost, Activation and Reset are designed for
Push-Pull- or OC-Controlling. The inputs are optically insulated from the MCD power
supply voltage.
ServiceBus
The ServiceBus offers the following possibilities:
•Power stage parameter programming:
e. g. Run, stop and boost current,
step resolution,
preferential motor direction and current delay time, etc.
•Configuration by software via 4-wire RS485 bus, optically insulated from the motor
voltage
•Parameter memory to hold data safely in the power stage EPROM
•Activate or deactivate the functions Overdrive and Current Shaping
The power stage can easily and quickly be programmed by ServiceBus-Comm®for
Windows® software (see manual ServiceBus-Comm®).

Manual MCD+
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Easy to mount and EMC compliant
•Vario flat pack for wall or rail mounting
•EMC compliant metal housing, cable clamps and PE screws at the top and bottom of
the housing
•Built-in EMC filter and motor filter for power supply
•Easy mounting by means of screw-type connectors
•Mounting brackets for different mounting positions
1.2 Extent of Supply
The MCD is available in the following options ( #: Ident number):
•MCD Power stage for rail mounting with mating connectors X1 to X3 #10008200
•MCD Power stage for wall mounting with mating connectors X1 to X3 #10006576
•MCD Power stage with the phytron USB Converter (a cable 20 cm included) for wall
mounting with mating connectors #10006861
•MCD Power stage with the phytron USB Converter (a cable 20 cm included) for rail
mounting with mating connectors #10008201
Accessories:
•MCD Manual
•Phytron CD with ServiceBus-Comm®software
•ServiceBus-Comm®Manual
Supplementary parts are available:
•Rail mounting kit #10007882
•ServiceBus cable (connection A-A) 20 cm #10006857
•ServiceBus cable (connection A-A) 100 cm #10006880
•USB cable (connection A-B) 200 cm #10006881
•Cable connection RS422/485-A 200 cm #10007255
•Power supply PS 5-48 (5 A, 48 V) for wall mounting #10006780
•Power supply PS 5-48 (5 A, 48 V) for rail mounting #10006148
•Power supply PS 10-24 (10 A, 24 V) for wall mounting #10006781
•Power supply PS 10-24 (10 A, 24 V) for rail mounting #10006578

phytron
•Mating connector set X1 to X3 #10007287:
Connector Number of poles Mating connector Phoenix Identity number
X1 2 MSTB2,5/2-STF-5,08 #02005267
X2 4 IC 2,5/4-ST-5,08 #10005390
X3 17 MC 1,5/17-ST-3,5 #10006319
1.3 Signal Connector X3
The power stage is adapted for 5 V or 24 V input voltage. There are different pin
assignments for both input voltages.
Fig. 2: 17-pole Phoenix Combicon connector MC 1,5/ 20-G-3,5
Please note that there are different pins for 5 V or 24 V inputs on X3!
Do not connect a 5 V input to 24 V voltage! Danger of damages!
See also chap. 7.1.
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Manual MCD+
1.4 ServiceBus Connectors X4 and X5
The power stages MCD are connected to the 4-pole ServiceBus connectors in ServiceBus
mode by A-A connection cables. See also chap. 8.2 in the ServiceBus-mode.
Fig. 3: 4-pole ServiceBus connector IN: X4
(DIN IEC 61076-3-107) Fig. 4: 4-pole ServiceBus connector OUT: X5 (DIN IEC 61076-3-107)
1.5 Operating Modes
The MCD operating mode can be set by the 4 setting switches at the front panel:
Fig. 5: 16-step setting switch: setting 0...F
Operating mode: Setting switch mode
Phase currents, Step resolution, preferential motor direction and device address are set by
the rotary switches IRun, IStop, STEP and Address.
Setting switch mode is selected, if the rotary switches S1, S2, S3 and S4 aren’t set to ‚0’.
Operating mode: ServiceBus mode
All settings are made on PC by ServiceBus–Comm®phytron software.
If the rotary switches S2, S3 and S4 are set to ‚0’, the MCD is in ServiceBus Mode.
The rotary switch S1 addresses the device
Important: Each address must only be used once!
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Remark:
If only one setting switch (S2, S3 or S4) is set to ‘0’ in the ServiceBus mode, the MCD will
be deactivated.
Operating mode: Bus mode exclusive
This operating mode is a special ServiceBus mode with safety locking. In Bus mode
exclusive all settings at the rotary switches are ignored.
Important:
•In setting switch mode the rotary switch adjustments are only accepted after a Reset
signal.
•Settings in the power stage also can be changed in setting switch mode by
ServiceBus-Comm®. After Reset (and then only) the settings of the rotary switches are
read.
1.5.1 Rotary Switch Mode
Run and stop current (IRun, IStop), step resolution and preferential motor direction (STEP) to
15 positions (1…F), the device address (Address) to 16 positions (0…F) can be set by the
four setting switches at the front side.
9 MA 2102-A005 GB
Fig. 6: Rotary switch mode – parameter setting by rotary switches

Manual MCD+
In the Rotary switch mode, you can be change between 2 ranges (Ior II) by the rotary
switch ‘Current range setting’:
Fig. 7: Range I:
max. 1.6 Ar.m.s. in 0.1 A steps Fig. 8: Range II:
max. 5 Ar.m.s. in 0.3 A steps
Remark:
The switch positions may be changed
•while the MCD is powered off or
•the power stage is deactivated. However, after changing the switch position the
power stage should be reset by the input Reset.
1.5.2 ServiceBus Mode
The ServiceBus mode is only activated, if all three rotary switches S2, S3 and S4 are set
to ‚0’. The rotary switch S1 addresses the device (0…F).
Important: Each address must only be used once!
Fig. 9: ServiceBus Mode
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The ServiceBus mode allows configuration and programming via PC by software
ServiceBus-Comm®for Windows®.
The step resolution can be programmed up to 1/512 step, the current delay time and the
phase current in 100 mA steps.
The operating parameters are unconditionally set, i.e. the preset values are accepted
without Reset.
Exception: The step resolution must be confirmed by Reset!
1.5.3 Bus Mode Exclusive
The Bus mode exclusive ensures safe operation in ServiceBus mode. If the power stage
is set to Bus mode exclusive in ServiceBus mode by ServiceBus-Comm®, all rotary switch
settings are ignored.
1.6 LED
Bi-colour
LED Meaning
green Ready LED is shining permanently:
The MCD power stage is ready to operate and
energized.
LED is blinking by second cycle (0.5 Hz):
Power stage is deactivated
red Fault Error in MCD:
Overcurrent/Short circuit: LED is shining permanently
Undervoltage: LED is blinking by second cycle (0.5 Hz)
Overtemperature: LED is blinking fast (2 Hz)

Manual MCD+
2 Technical Data Table
Technical Data
Stepper motor 2-phase-stepper motors with 4, 6 or 8 lead wiring scheme
Winding resistance between 0.1 and 10 Ohm
Winding inductance 0.5 to 10 mH per phase
Step resolution
Rotary switch mode The step resolution can be set by the rotary switch: 1/1, 1/2, 1/4, 1/5, 1/8, 1/10, 1/20 of a full step.
ServiceBus mode The step resolution is programmable:
1/1, 1/2, 1/4, 1/5, 1/8, 1/10, 1/16, 1/20, 1/32, 1/64, 1/128,
1/256, 1/512 of a full step.
Phase currents
Rotary switch mode Run current and stop current can be individually set by the rotary switches.
Run current and stop current can be changed between 2
ranges by the rotary switch CURRENT RANGE SETTING
(Iand II).
Factory settings:
Rotary switch: I(= low range)
All rotary switches: ‚0’
Rotary switch position
Range I
Range II
Run and stop current Run and stop current
0.2 to 1.6 Ar.m.s.
(without Boost) in 0.1 A steps
0.3 to 2.1 Ar.m.s. (with Boost)
0.4 to 3 APeak
0.6 to 5 Ar.m.s.
(without Boost) in 0.3 A steps
0.8 to 6.3 Ar.m.s. (with Boost)
1.1 to 9 APeak
ServiceBus mode Run and stop current can be set independently by program.
Programmable from 0.1 to 5 Ar.m.s. in 100 mA steps
Lead cross section of
the motor cable Minimum 1 mm² is recommended at max. current.
Supply voltage Unregulated filtered DC voltage from 24 to 70 VDC
Nominal voltage 70 VDC
Reinforced or double insulation between mains and
secondary circuit.
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Technical Data
Error message Supply voltage < 20 VDC or > 85 VDC
Overtemperature (T > 85° C)
Overcurrent, short circuit
The power stage is powered off in case of an error message.
Mounting The MCD housing is constructed with wall mounting brackets
at two side panels. We recommend a vertical mounting
(labeling readable) because of a better heat dissipation.
The clip for rail mounting is mounted on the back side
(35 mm acc. to EN550022).
Weight 650 g
Connector at the supply
cable X1 Phoenix Combicon connector, type MSTB 2,5/2-STF-5,08
Connector at the motor
cable X2 Phoenix Combicon connector, type IC 2,5/4-ST-5,08
Connector at the
I/O cable X3 17-pole Phoenix Mini Combicon connector,
type MC 1,5/17-ST-3,5
Connector at X4: IN 4-pole ServiceBus connector, type DIN IEC 61076-3-107
Connector at X5: OUT 4-pole ServiceBus connector, type DIN IEC 61076-3-107
Inputs The inputs are optically insulated from the motor voltage and
can be controlled via push-pull driver or open collector,
input level 5 V or 24 V
Signal level 5 V 24 V
High 2.5 – 5.5 V 20 – 30 V
Low < 0.4 V < 3 V
Necessary driver current 10 mA minimum
Control pulse Maximum step frequency: 500 kHz
Minimum pulse width: 1 µs
The step is done with the rising flank of the control pulse.
Motor direction When the optocoupler is energized, the motor rotates in the
reverse direction (as compared to the preferential motor
direction selected).
The direction of rotation signal should not be changed at least
1 µs before the rising flank and 4 µs after the falling flank of
the control pulse!

Manual MCD+
MA 2102-A005 GB 14
Technical Data
Boost In Rotary switch mode: When the optocoupler is energized,
the MCD increases the run and stop current by 30%.
Boost current is programmable in the ServiceBus mode.
Activation When the optocoupler is energized, the power stage is ready.
Reset When the input optocoupler is energized, all error messages
are reset and the control circuit is initialized.
Output Optically insulated from the motor voltage, type open-
collector
Imax = 20 mA, Umax = 30 V, Ptotal = 300 mW,
UCE sat at 20 mA < 1 V
Error The output opens in case of the following error signals: short
circuit, overcurrent, undervoltage, overvoltage, overheat.
To avoid damages, the drive is deactivated at the same time.
Ambient
temperatures Operation: 4 to +40 °C *)
Storage: –25 to +55 °C
Transport: –25 to +85 °C
*) We recommend an additional cooling in case of higher
operation temperatures.
Ambient standards EN 50178 Electronic equipment for use in power
installations
degree of pollution 2 should be observed
EN 61000-6-2
(EN 55011) Immunity for industrial environments class A
EN 61000-6-3
(EN 55022) Emission standard for industrial environments class B
A line filter with 20 dB damping is
necessary in the range from 0.15 to 1 MHz
(f.ex. Corcom 5VR1).
Remark: If PS 5, phytron’s power supply
unit, is used, any line filter isn’t required.
EN 61000-6-4 Emission standard for industrial
environments class A
EN 61000-3-2 Electromagnetic compatibility (EMC)
Minimum free space The MCD should be built-in vertically to ensure convection.
Minimum free space to other devices: 30 mm
Minimum free space below and above the device: 100 mm
Required free space for cables and connectors:
about 30 mm at the MCD front panel

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3 To Consider Before Installation
Read this manual very carefully before installing and operating the MCD.
Observe the safety instructions in the following chapter!
3.1 Qualified Personnel
Design, installation and operation of systems using the MCD may only be
performed by qualified and trained personnel.
These persons should be able to recognize and handle risks emerging from
electrical, mechanical or electronical system parts.
WARNING !
By persons without the proper training and qualification damages to devices and
persons might result!
3.2 Safety Instructions
1. The MCD must only be operated in accordance with the protective measure in
chap. 3.3.
2. The connector power supply X1 should be locked with the fixing screws.
3. The transformer must be constructed with reinforced or double insulation to
avoid dangerous touch voltages (50 VAC and 120 VDC) in case of isolation
error in the transformer.
4. If you need to open the MCD device:
Up to 3 minutes after turning off the supply voltage, dangerous voltages
may still exist within the device.
5. Be careful handling the motor connectors X2 at the MCD and any motor
cable coupling.
As long as the MCD is connected to supply voltage, a hazardous voltage level
is present at motor connector and motor cable, even if the motor is not wired.
6. Always switch off the supply voltage if you connect or disconnect any wires or
connectors at the MCD.
Most important:
Do not unplug the motor connector while powered!
Danger of electric arcing.
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Manual MCD+
7. The maximum voltage of the signal inputs and outputs must not exceed 5 VDC
and 24 VDC (I/O connector X3).
Please note that there are different pins for 5 V or 24 V inputs! Do
not connect a 5 V input to 24 V voltage! Danger of damages!
8. Clearing the inputs Activation or Reset is no safe separation in the emergency
case.
The voltage supply has to be interrupted for switching off the drive safely.
9. Devices connected to MCD for control or communication should have
reinforced or double insulation.
10.The surface of the MCD may reach temperatures of more than 85 °C during
operation. Danger of injury if touching the surface!
3.3 Protective Measure Options for the Operation of Power Stages
The power stage must be operated by the protective measure PELV acc. to VDE 0100.
Board and motor housing have to be grounded and/or connected to 0 V.
Various options are possible to achieve the protective measure PELV:
Fig. 10:PELV – Grounding: total
Fig. 11:PELV – Grounding: Power Stage and Motor. The secondary winding of the transformer
(SELV supply) must not be grounded because the equipment is grounded.
Fig. 12:PELV – Grounding: 0 V and Motor
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If there is no PE clamp on the motor, the 0 V wire must be grounded to complete the
protective measure PELV (Fig. 13 and Fig.14):
Fig. 13:PELV – Grounding: 0 V and Power Stage
Fig. 14:PELV – Grounding: 0 V
Protective measure PELV for application of the +UBshould not exceed 70 VDC or
50 VAC at dry environment (environmental conditions 3 acc. to IEC 61201).
The supply transformer must be constructed with reinforced or double
insulation between supply and secondary winding (acc. to EN 61558).
Only use motors which are checked acc. to EN 60034-1 (500 VAC/1 minute).
3.4 Putting into Service
3.4.1 For Rotary Switch Mode
Please follow the described order when you put into service the MCD power stage:
1. Connect the MCD acc. to protective measure in chap. 3.3.
2. Wire the 17-pole Phönix connector (MC1,5/(17-ST-3,5)) with the required
leads and connect it to the MCD (See fig. 2: male connector of the MCD
(MC1,5/17-G-3,5)).
3. Connect the motor to the MCD. Use the Phönix connector called: IC2,5/4-ST-5,08.
The equivalent male connector (IC2,5/4-G-5,08) is on the front panel of the MCD.
Please note chapter 6.1 to 6.4.
4. Setting switch positions for Rotary switch mode
For rotary switch setting see table in chapter 8.
17 MA 2102-A005 GB
•Set the rotary switch IRun to the required run current. The phase current should
not exceed the maximum admissible motor current.

Manual MCD+
MA 2102-A005 GB 18
•The stop current is set by the rotary switch IStop.
We recommend the following setting:
Stop current = 50 % of the run current.
•Set the step resolution and preferred motor direction by the rotary switch STEP.
•Connect the input signals to the Control pulse and Activation inputs.
5. Connect the supply voltage to the MCD. Use the 2-pole Phönix connector
(MSTB2,5/STF-5,08). The equivalent male connector (MSTB2,5/2-GF-5,08) is on the
front panel of the MCD (see chap. 5).
6. Power on the MCD.
The MCD is designed for voltages from 24 to 70 V. The nominal voltage is 70 V.
As soon as the MCD is powered on and there is no error, the green LED shines.
3.4.2 For ServiceBus Mode
Please follow the described order when you put into service the MCD power stage:
1. to 3. see chap. 3.4.1
4. Rotary switch setting for ServiceBus mode
•Set the rotary switches S2, S3 and S4 to position 0.
•Set the rotary switches S1 to the required device address (0…F).
•Using the USB-RS485-Converter:
Connect an USB-port of the PC to the USB input (IN) of the USB-RS485-converter
by an USB-cable, type A-B. Install the required USB drivers, see phytron CD. After
a successful installation connect the USB-RS485-converter (OUT) to the MCD
(connector X4) (A-A connection of the 4-pole connector).
•Using the RS422/RS485-Interface:
Connect the PC to the first MCD (X4) with an adapted ServiceBus cable. Then,
connect the bus output of the MCD (X5) to the next MCD (See fig. 29).
Continue until all MCD are connected in bus mode.
•Connect the input signals to the Control pulse and Activation inputs.
5. and 6. see chap. 3.4.1