Danfoss EPS VLT User manual

MAKING MODERN LIVING POSSIBLE
Quick Reference Guide
VLT®HVAC Drive

*
91 (L1)
92 (L2)
93 (L3)
PE
88 (-)
89 (+)
50 (+10 V OUT)
53 (A IN)
54 (A IN)
55 (COM A IN)
0/4-20 mA
12 (+24V OUT)
13 (+24V OUT)
18 (D IN)
20 (COM D IN)
15mA 200mA
(U) 96
(V) 97
(W) 98
(PE) 99
(COM A OUT) 39
(A OUT) 42 0/4-20 mA
03
0-10Vdc
+10Vdc
0-10Vdc
0/4-20 mA
240Vac, 2A
24Vdc
02
01
05
04
06 240Vac, 2A
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
19 (D IN)
24V (NPN)
0V (PNP)
27
24V
0V
(D IN/OUT)
0V (PNP)
24V (NPN)
(D IN/OUT)
0V
24V
29
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
33 (D IN)
32 (D IN)
1 2
ON
S201
ON
21
S202
ON=0-20mA
OFF=0-10V
95
400Vac, 2A
P 5-00
(R+) 82
(R-) 81
37 (D IN)
+ - + -
130BA544.11
(P RS-485) 68
(N RS-485) 69
(COM RS-485) 61
0V
5V
S801
RS-485
RS-485
21
ON
S801
3 Phase
power
input
DC bus Switch Mode
Power Supply
Motor
Analog Output
Interface
relay1
relay2
ON=Terminated
OFF=Open
Brake
resistor
(NPN) = Sink
(PNP) = Source
Illustration 2.1 Diagram showing all electrical terminals. (Terminal 37 present for units with Safe Stop Function only.)
VLT®HVAC Drive Quick Reference Guide

2 How to Programme
2.1 Local Control Panel
2.1.1 How to Operate Graphical LCP (GLCP)
The following instructions are valid for the GLCP (LCP 102).
The GLCP is divided into four functional groups
1. Graphical display with Status lines.
2. Menu keys and indicator lights (LEDs) - selecting
mode, changing parameters and switching
between display functions.
3. Navigation keys and indicator lights (LEDs).
4. Operation keys and indicator lights (LEDs).
Graphical display
The LCD-display is back-lit with a total of 6 alpha-numeric
lines. All data is displayed on the LCP which can show up
to five operating variables while in [Status] mode.
Display lines
a. Status line Status messages displaying icons and
graphics.
b. Line 1-2Operator data lines displaying data and
variables defined or chosen by the user. By
pressing the [Status] key, up to one extra line can
be added.
c. Status line Status messages displaying text.
Auto
on Reset
Hand
on O
Status Quick
Menu
Main
Menu
Alarm
Log
Back
Cancel
Info
OK
Status 1(0)
1234rpm 10,4A 43,5Hz
Run OK
43,5Hz
On
Alarm
Warn.
130BA018.13
1
2
3
4
b
a
c
Illustration 2.1
The display is divided into 3 sections
Top section (a) shows the status when in status mode or
up to 2 variables when not in status mode and in the case
of Alarm/Warning.
The number of the Active Set-up (selected as the Active
Set-up in 0-10 Active Set-up) is shown. When programming
in another Set-up than the Active Set-up, the number of
the Set-up being programmed appears to the right in
brackets.
The Middle section (b) shows up to 5 variables with related
unit, regardless of status. In case of alarm/warning, the
warning is shown instead of the variables.
VLT®HVAC Drive Quick Reference Guide

5.5.1 Quick Menu Structure
Q3-1 General Settings 0-24 Display Line 3 Large 1-00 Configuration Mode Q3-31 Single Zone Ext. Set Point 20-70 Closed Loop Type
Q3-10 Adv. Motor Settings 0-37 Display Text 1 20-12 Reference/Feedback Unit 1-00 Configuration Mode 20-71 PID Performance 1-90 Motor Thermal Protection 0-38 Display Text 2 20-13 Minimum Reference/Feedb. 20-12 Reference/Feedback Unit 20-72 PID Output Change 1-93 Thermistor Source 0-39 Display Text 3 20-14 Maximum Reference/Feedb. 20-13 Minimum Reference/Feedb. 20-73 Minimum Feedback Level 1-29 Automatic Motor Adaptation (AMA)
Q3-2 Open Loop Settings 6-22 Terminal 54 Low Current 20-14 Maximum Reference/Feedb. 20-74 Maximum Feedback Level
14-01 Switching Frequency Q3-20 Digital Reference 6-24 Terminal 54 Low Ref./Feedb.
Value
6-10 Terminal 53 Low Voltage 20-79 PID Autotuning
4-53 Warning Speed High 3-02 Minimum Reference 6-25 Terminal 54 High Ref./Feedb.
Value
6-11 Terminal 53 High Voltage Q3-32 Multi Zone / Adv
Q3-11 Analog Output 3-03 Maximum Reference 6-26 Terminal 54 Filter Time
Constant
6-12 Terminal 53 Low Current 1-00 Configuration Mode
6-50 Terminal 42 Output 3-10 Preset Reference 6-27 Terminal 54 Live Zero 6-13 Terminal 53 High Current 3-15 Reference 1 Source 6-51 Terminal 42 Output Min Scale 5-13 Terminal 29 Digital Input 6-00 Live Zero Timeout Time 6-14 Terminal 53 Low Ref./Feedb. Value 3-16 Reference 2 Source 6-52 Terminal 42 Output Max Scale 5-14 Terminal 32 Digital Input 6-01 Live Zero Timeout Function 6-15 Terminal 53 High Ref./Feedb.
Value
20-00 Feedback 1 Source
Q3-12 Clock Settings 5-15 Terminal 33 Digital Input 20-21 Setpoint 1 6-22 Terminal 54 Low Current 20-01 Feedback 1 Conversion
0-70 Date and Time Q3-21 Analog Reference 20-81 PID Normal/ Inverse Control 6-24 Terminal 54 Low Ref./Feedb. Value 20-02 Feedback 1 Source Unit 0-71 Date Format 3-02 Minimum Reference 20-82 PID Start Speed [RPM] 6-25 Terminal 54 High Ref./Feedb.
Value
20-03 Feedback 2 Source
0-72 Time Format 3-03 Maximum Reference 20-83 PID Start Speed [Hz] 6-26 Terminal 54 Filter Time Constant 20-04 Feedback 2 Conversion 0-74 DST/Summertime 6-10 Terminal 53 Low Voltage 20-93 PID Proportional Gain 6-27 Terminal 54 Live Zero 20-05 Feedback 2 Source Unit 0-76 DST/Summertime Start 6-11 Terminal 53 High Voltage 20-94 PID Integral Time 6-00 Live Zero Timeout Time 20-06 Feedback 3 Source
0-77 DST/Summertime End 6-12 Terminal 53 Low Current 20-70 Closed Loop Type 6-01 Live Zero Timeout Function 20-07 Feedback 3 Conversion Q3-13 Display Settings 6-13 Terminal 53 High Current 20-71 PID Performance 20-81 PID Normal/ Inverse Control 20-08 Feedback 3 Source Unit
0-20 Display Line 1.1 Small 6-14 Terminal 53 Low Ref./Feedb.
Value
20-72 PID Output Change 20-82 PID Start Speed [RPM] 20-12 Reference/Feedback Unit
0-21 Display Line 1.2 Small 6-15 Terminal 53 High Ref./Feedb.
Value
20-73 Minimum Feedback Level 20-83 PID Start Speed [Hz] 20-13 Minimum Reference/Feedb.
0-22 Display Line 1.3 Small Q3-3 Closed Loop Settings 20-74 Maximum Feedback Level 20-93 PID Proportional Gain 20-14 Maximum Reference/Feedb. 0-23 Display Line 2 Large Q3-30 Single Zone Int. Set Point 20-79 PID Autotuning 20-94 PID Integral Time 6-10 Terminal 53 Low Voltage
VLT®HVAC Drive Quick ReferenceGuide

6-11 Terminal 53 High Voltage 20-21 Setpoint 1 22-22 Low Speed Detection 22-21 Low Power Detection 22-87 Pressure at No-Flow Speed 6-12 Terminal 53 Low Current 20-22 Setpoint 2 22-23 No-Flow Function 22-22 Low Speed Detection 22-88 Pressure at Rated Speed 6-13 Terminal 53 High Current 20-81 PID Normal/ Inverse Control 22-24 No-Flow Delay 22-23 No-Flow Function 22-89 Flow at Design Point 6-14 Terminal 53 Low Ref./Feedb. Value
20-82 PID Start Speed [RPM] 22-40 Minimum Run Time 22-24 No-Flow Delay 22-90 Flow at Rated Speed
6-15 Terminal 53 High Ref./Feedb. Value
20-83 PID Start Speed [Hz] 22-41 Minimum Sleep Time 22-40 Minimum Run Time 1-03 Torque Characteristics
6-16 Terminal 53 Filter Time Constant 20-93 PID Proportional Gain 22-42 Wake-up Speed [RPM] 22-41 Minimum Sleep Time 1-73 Flying Start 6-17 Terminal 53 Live Zero 20-94 PID Integral Time 22-43 Wake-up Speed [Hz] 22-42 Wake-up Speed [RPM] Q3-42 Compressor Functions
6-20 Terminal 54 Low Voltage 20-70 Closed Loop Type 22-44 Wake-up Ref./FB Difference 22-43 Wake-up Speed [Hz] 1-03 Torque Characteristics 6-21 Terminal 54 High Voltage 20-71 PID Performance 22-45 Setpoint Boost 22-44 Wake-up Ref./FB Difference 1-71 Start Delay 6-22 Terminal 54 Low Current 20-72 PID Output Change 22-46 Maximum Boost Time 22-45 Setpoint Boost 22-75 Short Cycle Protection 6-23 Terminal 54 High Current 20-73 Minimum Feedback Level 2-10 Brake Function 22-46 Maximum Boost Time 22-76 Interval between Starts 6-24 Terminal 54 Low Ref./Feedb. Value
20-74 Maximum Feedback Level 2-16 AC brake Max. Current 22-26 Dry Pump Function 22-77 Minimum Run Time
6-25 Terminal 54 High Ref./Feedb. Value
20-79 PID Autotuning 2-17 Over-voltage Control 22-27 Dry Pump Delay 5-01 Terminal 27 Mode
6-26 Terminal 54 Filter Time Constant Q3-4 Application Settings 1-73 Flying Start 22-80 Flow Compensation 5-02 Terminal 29 Mode
6-27 Terminal 54 Live Zero Q3-40 Fan Functions 1-71 Start Delay 22-81 Square-linear Curve Approxi-
mation
5-12 Terminal 27 Digital Input
6-00 Live Zero Timeout Time 22-60 Broken Belt Function 1-80 Function at Stop 22-82 Work Point Calculation 5-13 Terminal 29 Digital Input 6-01 Live Zero Timeout Function 22-61 Broken Belt Torque 2-00 DC Hold/Preheat Current 22-83 Speed at No-Flow [RPM] 5-40 Function Relay 4-56 Warning Feedback Low 22-62 Broken Belt Delay 4-10 Motor Speed Direction 22-84 Speed at No-Flow [Hz] 1-73 Flying Start 4-57 Warning Feedback High 4-64 Semi-Auto Bypass Set-up Q3-41 Pump Functions 22-85 Speed at Design Point [RPM] 1-86 Trip Speed Low [RPM] 20-20 Feedback Function 1-03 Torque Characteristics 22-20 Low Power Auto Set-up 22-86 Speed at Design Point [Hz] 1-87 Trip Speed Low [Hz]
VLT®HVAC Drive Quick Reference Guide

5.5.2 Main menu
structure
0-** Operation / Display 0-0* Basic Settings 0-01 Language 0-02 Motor Speed Unit 0-03 Regional Settings 0-04 Operating State at Power-up 0-05 Local Mode Unit 0-1* Set-up Operations 0-10 Active Set-up 0-11 Programming Set-up 0-12 This Set-up Linked to 0-13 Readout: Linked Set-ups 0-14 Readout: Prog. Set-ups / Channel 0-2* LCP Display 0-20 Display Line 1.1 Small 0-21 Display Line 1.2 Small 0-22 Display Line 1.3 Small 0-23 Display Line 2 Large 0-24 Display Line 3 Large 0-25 My Personal Menu 0-3* LCP Custom Readout 0-30 Custom Readout Unit 0-31 Custom Readout Min Value 0-32 Custom Readout Max Value 0-37 Display Text 1 0-38 Display Text 2 0-39 Display Text 3 0-4* LCP Keypad 0-40 [Hand on] Key on LCP 0-41 [Off] Key on LCP 0-42 [Auto on] Key on LCP 0-43 [Reset] Key on LCP 0-44 [Off/Reset] Key on LCP 0-45 [Drive Bypass] Key on LCP 0-5* Copy/Save 0-50 LCP Copy 0-51 Set-up Copy 0-6* Password 0-60 Main Menu Password 0-61 Access to Main Menu w/o Password 0-65 Personal Menu Password 0-66 Access to Personal Menu w/o
Password
0-7* Clock Settings 0-70 Date and Time 0-71 Date Format 0-72 Time Format 0-74 DST/Summertime 0-76 DST/Summertime Start 0-77 DST/Summertime End 0-79 Clock Fault 0-81 Working Days 0-82 Additional Working Days 0-83 Additional Non-Working Days 0-89 Date and Time Readout
1-** Load and Motor 1-0* General Settings 1-00 Configuration Mode 1-03 Torque Characteristics 1-06 Clockwise Direction 1-1* Motor Selection 1-10 Motor Construction 1-1* VVC+ PM 1-14 Damping Gain 1-15 Low Speed Filter Time Const. 1-16 High Speed Filter Time Const. 1-17 Voltage filter time const. 1-2* Motor Data 1-20 Motor Power [kW] 1-21 Motor Power [HP] 1-22 Motor Voltage 1-23 Motor Frequency 1-24 Motor Current 1-25 Motor Nominal Speed 1-26 Motor Cont. Rated Torque 1-28 Motor Rotation Check 1-29 Automatic Motor Adaptation (AMA) 1-3* Adv. Motor Data 1-30 Stator Resistance (Rs) 1-31 Rotor Resistance (Rr) 1-35 Main Reactance (Xh) 1-36 Iron Loss Resistance (Rfe) 1-37 d-axis Inductance (Ld) 1-39 Motor Poles 1-40 Back EMF at 1000 RPM 1-5* Load Indep. Setting 1-50 Motor Magnetisation at Zero Speed 1-51 Min Speed Normal Magnetising [RPM] 1-52 Min Speed Normal Magnetising [Hz] 1-58 Flystart Test Pulses Current 1-59 Flystart Test Pulses Frequency 1-6* Load Depen. Setting 1-60 Low Speed Load Compensation 1-61 High Speed Load Compensation 1-62 Slip Compensation 1-63 Slip Compensation Time Constant 1-64 Resonance Dampening 1-65 Resonance Dampening Time Constant 1-66 Min. Current at Low Speed 1-7* Start Adjustments 1-70 PM Startmode 1-71 Start Delay 1-72 Start Function 1-73 Flying Start 1-77 Compressor Start Max Speed [RPM] 1-78 Compressor Start Max Speed [Hz] 1-79 Compressor Start Max Time to Trip 1-8* Stop Adjustments 1-80 Function at Stop 1-81 Min Speed for Function at Stop [RPM] 1-82 Min Speed for Function at Stop [Hz] 1-86 Trip Speed Low [RPM] 1-87 Trip Speed Low [Hz] 1-9* Motor Temperature
1-90 Motor Thermal Protection 1-91 Motor External Fan 1-93 Thermistor Source
2-** Brakes 2-0* DC-Brake 2-00 DC Hold/Preheat Current 2-01 DC Brake Current 2-02 DC Braking Time 2-03 DC Brake Cut In Speed [RPM] 2-04 DC Brake Cut In Speed [Hz] 2-06 Parking Current 2-07 Parking Time 2-1* Brake Energy Funct. 2-10 Brake Function 2-11 Brake Resistor (ohm) 2-12 Brake Power Limit (kW) 2-13 Brake Power Monitoring 2-15 Brake Check 2-16 AC brake Max. Current 2-17 Over-voltage Control 3-** Reference / Ramps 3-0* Reference Limits 3-02 Minimum Reference 3-03 Maximum Reference 3-04 Reference Function 3-1* References 3-10 Preset Reference 3-11 Jog Speed [Hz] 3-13 Reference Site 3-14 Preset Relative Reference 3-15 Reference 1 Source 3-16 Reference 2 Source 3-17 Reference 3 Source 3-19 Jog Speed [RPM] 3-4* Ramp 1 3-41 Ramp 1 Ramp Up Time 3-42 Ramp 1 Ramp Down Time 3-5* Ramp 2 3-51 Ramp 2 Ramp Up Time 3-52 Ramp 2 Ramp Down Time 3-8* Other Ramps 3-80 Jog Ramp Time 3-81 Quick Stop Ramp Time 3-82 Starting Ramp Up Time 3-9* Digital Pot.Meter 3-90 Step Size 3-91 Ramp Time 3-92 Power Restore 3-93 Maximum Limit 3-94 Minimum Limit 3-95 Ramp Delay 4-** Limits / Warnings 4-1* Motor Limits 4-10 Motor Speed Direction 4-11 Motor Speed Low Limit [RPM] 4-12 Motor Speed Low Limit [Hz] 4-13 Motor Speed High Limit [RPM] 4-14 Motor Speed High Limit [Hz] 4-16 Torque Limit Motor Mode
4-17 Torque Limit Generator Mode 4-18 Current Limit 4-19 Max Output Frequency
4-5* Adj. Warnings 4-50 Warning Current Low 4-51 Warning Current High 4-52 Warning Speed Low 4-53 Warning Speed High 4-54 Warning Reference Low 4-55 Warning Reference High 4-56 Warning Feedback Low 4-57 Warning Feedback High 4-58 Missing Motor Phase Function 4-6* Speed Bypass 4-60 Bypass Speed From [RPM] 4-61 Bypass Speed From [Hz] 4-62 Bypass Speed To [RPM] 4-63 Bypass Speed To [Hz] 4-64 Semi-Auto Bypass Set-up 5-** Digital In/Out 5-0* Digital I/O mode 5-00 Digital I/O Mode 5-01 Terminal 27 Mode 5-02 Terminal 29 Mode 5-1* Digital Inputs 5-10 Terminal 18 Digital Input 5-11 Terminal 19 Digital Input 5-12 Terminal 27 Digital Input 5-13 Terminal 29 Digital Input 5-14 Terminal 32 Digital Input 5-15 Terminal 33 Digital Input 5-16 Terminal X30/2 Digital Input 5-17 Terminal X30/3 Digital Input 5-18 Terminal X30/4 Digital Input 5-19 Terminal 37 Safe Stop 5-3* Digital Outputs 5-30 Terminal 27 Digital Output 5-31 Terminal 29 Digital Output 5-32 Term X30/6 Digi Out (MCB 101) 5-33 Term X30/7 Digi Out (MCB 101) 5-4* Relays 5-40 Function Relay 5-41 On Delay, Relay 5-42 Off Delay, Relay 5-5* Pulse Input 5-50 Term. 29 Low Frequency 5-51 Term. 29 High Frequency 5-52 Term. 29 Low Ref./Feedb. Value 5-53 Term. 29 High Ref./Feedb. Value 5-54 Pulse Filter Time Constant #29 5-55 Term. 33 Low Frequency 5-56 Term. 33 High Frequency 5-57 Term. 33 Low Ref./Feedb. Value 5-58 Term. 33 High Ref./Feedb. Value 5-59 Pulse Filter Time Constant #33 5-6* Pulse Output 5-60 Terminal 27 Pulse Output Variable 5-62 Pulse Output Max Freq #27 5-63 Terminal 29 Pulse Output Variable
5-65 Pulse Output Max Freq #29 5-66 Terminal X30/6 Pulse Output Variable 5-68 Pulse Output Max Freq #X30/6
5-8* I/O Options 5-80 AHF Cap Reconnect Delay 5-9* Bus Controlled 5-90 Digital & Relay Bus Control 5-93 Pulse Out #27 Bus Control 5-94 Pulse Out #27 Timeout Preset 5-95 Pulse Out #29 Bus Control 5-96 Pulse Out #29 Timeout Preset 5-97 Pulse Out #X30/6 Bus Control 5-98 Pulse Out #X30/6 Timeout Preset 6-** Analog In/Out 6-0* Analog I/O Mode 6-00 Live Zero Timeout Time 6-01 Live Zero Timeout Function 6-02 Fire Mode Live Zero Timeout Function 6-1* Analog Input 53 6-10 Terminal 53 Low Voltage 6-11 Terminal 53 High Voltage 6-12 Terminal 53 Low Current 6-13 Terminal 53 High Current 6-14 Terminal 53 Low Ref./Feedb. Value 6-15 Terminal 53 High Ref./Feedb. Value 6-16 Terminal 53 Filter Time Constant 6-17 Terminal 53 Live Zero 6-2* Analog Input 54 6-20 Terminal 54 Low Voltage 6-21 Terminal 54 High Voltage 6-22 Terminal 54 Low Current 6-23 Terminal 54 High Current 6-24 Terminal 54 Low Ref./Feedb. Value 6-25 Terminal 54 High Ref./Feedb. Value 6-26 Terminal 54 Filter Time Constant 6-27 Terminal 54 Live Zero 6-3* Analog Input X30/11 6-30 Terminal X30/11 Low Voltage 6-31 Terminal X30/11 High Voltage 6-34 Term. X30/11 Low Ref./Feedb. Value 6-35 Term. X30/11 High Ref./Feedb. Value 6-36 Term. X30/11 Filter Time Constant 6-37 Term. X30/11 Live Zero 6-4* Analog Input X30/12 6-40 Terminal X30/12 Low Voltage 6-41 Terminal X30/12 High Voltage 6-44 Term. X30/12 Low Ref./Feedb. Value 6-45 Term. X30/12 High Ref./Feedb. Value 6-46 Term. X30/12 Filter Time Constant 6-47 Term. X30/12 Live Zero 6-5* Analog Output 42 6-50 Terminal 42 Output 6-51 Terminal 42 Output Min Scale 6-52 Terminal 42 Output Max Scale 6-53 Terminal 42 Output Bus Control 6-54 Terminal 42 Output Timeout Preset 6-55 Analog Output Filter 6-6* Analog Output X30/8 6-60 Terminal X30/8 Output
VLT®HVAC Drive Quick Reference Guide

6-61 Terminal X30/8 Min. Scale 6-62 Terminal X30/8 Max. Scale 6-63 Terminal X30/8 Output Bus Control 6-64 Terminal X30/8 Output Timeout Preset 8-** Comm. and Options 8-0* General Settings 8-01 Control Site 8-02 Control Source 8-03 Control Timeout Time 8-04 Control Timeout Function 8-05 End-of-Timeout Function 8-06 Reset Control Timeout 8-07 Diagnosis Trigger 8-08 Readout Filtering 8-09 Communication Charset 8-1* Control Settings 8-10 Control Profile 8-13 Configurable Status Word STW 8-3* FC Port Settings 8-30 Protocol 8-31 Address 8-32 Baud Rate 8-33 Parity / Stop Bits 8-34 Estimated cycle time 8-35 Minimum Response Delay 8-36 Maximum Response Delay 8-37 Maximum Inter-Char Delay 8-4* FC MC protocol set 8-40 Telegram Selection 8-42 PCD write configuration 8-43 PCD read configuration 8-5* Digital/Bus 8-50 Coasting Select 8-52 DC Brake Select 8-53 Start Select 8-54 Reversing Select 8-55 Set-up Select 8-56 Preset Reference Select 8-7* BACnet 8-70 BACnet Device Instance 8-72 MS/TP Max Masters 8-73 MS/TP Max Info Frames 8-74 “I-Am” Service 8-75 Initialisation Password 8-8* FC Port Diagnostics 8-80 Bus Message Count 8-81 Bus Error Count 8-82 Slave Messages Rcvd 8-83 Slave Error Count 8-84 Slave Messages Sent 8-85 Slave Timeout Errors 8-89 Diagnostics Count 8-9* Bus Jog / Feedback 8-90 Bus Jog 1 Speed 8-91 Bus Jog 2 Speed 8-94 Bus Feedback 1 8-95 Bus Feedback 2 8-96 Bus Feedback 3 9-** Profibus
9-00 Setpoint 9-07 Actual Value 9-15 PCD Write Configuration 9-16 PCD Read Configuration 9-18 Node Address 9-22 Telegram Selection 9-23 Parameters for Signals 9-27 Parameter Edit 9-28 Process Control 9-44 Fault Message Counter 9-45 Fault Code 9-47 Fault Number 9-52 Fault Situation Counter 9-53 Profibus Warning Word 9-63 Actual Baud Rate 9-64 Device Identification 9-65 Profile Number 9-67 Control Word 1 9-68 Status Word 1 9-71 Profibus Save Data Values 9-72 ProfibusDriveReset 9-75 DO Identification 9-80 Defined Parameters (1) 9-81 Defined Parameters (2) 9-82 Defined Parameters (3) 9-83 Defined Parameters (4) 9-84 Defined Parameters (5) 9-90 Changed Parameters (1) 9-91 Changed Parameters (2) 9-92 Changed Parameters (3) 9-93 Changed Parameters (4) 9-94 Changed Parameters (5) 9-99 Profibus Revision Counter
10-** CAN Fieldbus 10-0* Common Settings 10-00 CAN Protocol 10-01 Baud Rate Select 10-02 MAC ID 10-05 Readout Transmit Error Counter 10-06 Readout Receive Error Counter 10-07 Readout Bus Off Counter 10-1* DeviceNet 10-10 Process Data Type Selection 10-11 Process Data Config Write 10-12 Process Data Config Read 10-13 Warning Parameter 10-14 Net Reference 10-15 Net Control 10-2* COS Filters 10-20 COS Filter 1 10-21 COS Filter 2 10-22 COS Filter 3 10-23 COS Filter 4 10-3* Parameter Access 10-30 Array Index 10-31 Store Data Values 10-32 Devicenet Revision 10-33 Store Always 10-34 DeviceNet Product Code
10-39 Devicenet F Parameters
11-** LonWorks 11-0* LonWorks ID 11-00 Neuron ID 11-1* LON Functions 11-10 Drive Profile 11-15 LON Warning Word 11-17 XIF Revision 11-18 LonWorks Revision 11-2* LON Param. Access 11-21 Store Data Values 12-** Ethernet 12-0* IP Settings 12-00 IP Address Assignment 12-01 IP Address 12-02 Subnet Mask 12-03 Default Gateway 12-04 DHCP Server 12-05 Lease Expires 12-06 Name Servers 12-07 Domain Name 12-08 Host Name 12-09 Physical Address 12-1* Ethernet Link Parameters 12-10 Link Status 12-11 Link Duration 12-12 Auto Negotiation 12-13 Link Speed 12-14 Link Duplex 12-2* Process Data 12-20 Control Instance 12-21 Process Data Config Write 12-22 Process Data Config Read 12-27 Primary Master 12-28 Store Data Values 12-29 Store Always 12-3* EtherNet/IP 12-30 Warning Parameter 12-31 Net Reference 12-32 Net Control 12-33 CIP Revision 12-34 CIP Product Code 12-35 EDS Parameter 12-37 COS Inhibit Timer 12-38 COS Filter 12-4* Modbus TCP 12-40 Status Parameter 12-41 Slave Message Count 12-42 Slave Exception Message Count 12-8* Other Ethernet Services 12-80 FTP Server 12-81 HTTP Server 12-82 SMTP Service 12-89 Transparent Socket Channel Port 12-9* Advanced Ethernet Services 12-90 Cable Diagnostic 12-91 Auto Cross Over 12-92 IGMP Snooping 12-93 Cable Error Length
12-94 Broadcast Storm Protection 12-95 Broadcast Storm Filter 12-96 Port Config 12-98 Interface Counters 12-99 Media Counters
13-** Smart Logic 13-0* SLC Settings 13-00 SL Controller Mode 13-01 Start Event 13-02 Stop Event 13-03 Reset SLC 13-1* Comparators 13-10 Comparator Operand 13-11 Comparator Operator 13-12 Comparator Value 13-2* Timers 13-20 SL Controller Timer 13-4* Logic Rules 13-40 Logic Rule Boolean 1 13-41 Logic Rule Operator 1 13-42 Logic Rule Boolean 2 13-43 Logic Rule Operator 2 13-44 Logic Rule Boolean 3 13-5* States 13-51 SL Controller Event 13-52 SL Controller Action 14-** Special Functions 14-0* Inverter Switching 14-00 Switching Pattern 14-01 Switching Frequency 14-03 Overmodulation 14-04 PWM Random 14-1* Mains On/Off 14-10 Mains Failure 14-11 Mains Voltage at Mains Fault 14-12 Function at Mains Imbalance 14-2* Reset Functions 14-20 Reset Mode 14-21 Automatic Restart Time 14-22 Operation Mode 14-23 Typecode Setting 14-25 Trip Delay at Torque Limit 14-26 Trip Delay at Inverter Fault 14-28 Production Settings 14-29 Service Code 14-3* Current Limit Ctrl. 14-30 Current Lim Ctrl, Proportional Gain 14-31 Current Lim Ctrl, Integration Time 14-32 Current Lim Ctrl, Filter Time 14-4* Energy Optimising 14-40 VT Level 14-41 AEO Minimum Magnetisation 14-42 Minimum AEO Frequency 14-43 Motor Cosphi 14-5* Environment 14-50 RFI Filter 14-51 DC Link Compensation 14-52 Fan Control 14-53 Fan Monitor
14-55 Output Filter 14-59 Actual Number of Inverter Units
14-6* Auto Derate 14-60 Function at Over Temperature 14-61 Function at Inverter Overload 14-62 Inv. Overload Derate Current 15-** Drive Information 15-0* Operating Data 15-00 Operating Hours 15-01 Running Hours 15-02 kWh Counter 15-03 Power Up's 15-04 Over Temp's 15-05 Over Volt's 15-06 Reset kWh Counter 15-07 Reset Running Hours Counter 15-08 Number of Starts 15-1* Data Log Settings 15-10 Logging Source 15-11 Logging Interval 15-12 Trigger Event 15-13 Logging Mode 15-14 Samples Before Trigger 15-2* Historic Log 15-20 Historic Log: Event 15-21 Historic Log: Value 15-22 Historic Log: Time 15-23 Historic Log: Date and Time 15-3* Alarm Log 15-30 Alarm Log: Error Code 15-31 Alarm Log: Value 15-32 Alarm Log: Time 15-33 Alarm Log: Date and Time 15-4* Drive Identification 15-40 FC Type 15-41 Power Section 15-42 Voltage 15-43 Software Version 15-44 Ordered Typecode String 15-45 Actual Typecode String 15-46 Frequency Converter Ordering No 15-47 Power Card Ordering No 15-48 LCP Id No 15-49 SW ID Control Card 15-50 SW ID Power Card 15-51 Frequency Converter Serial Number 15-53 Power Card Serial Number 15-55 Vendor URL 15-56 Vendor Name 15-59 CSIV Filename 15-6* Option Ident 15-60 Option Mounted 15-61 Option SW Version 15-62 Option Ordering No 15-63 Option Serial No 15-70 Option in Slot A 15-71 Slot A Option SW Version 15-72 Option in Slot B 15-73 Slot B Option SW Version
VLT®HVAC Drive Quick Reference Guide

15-74 Option in Slot C0 15-75 Slot C0 Option SW Version 15-76 Option in Slot C1 15-77 Slot C1 Option SW Version 15-9* Parameter Info 15-92 Defined Parameters 15-93 Modified Parameters 15-98 Drive Identification 15-99 Parameter Metadata 16-** Data Readouts 16-0* General Status 16-00 Control Word 16-01 Reference [Unit] 16-02 Reference [%] 16-03 Status Word 16-05 Main Actual Value [%] 16-09 Custom Readout 16-1* Motor Status 16-10 Power [kW] 16-11 Power [hp] 16-12 Motor Voltage 16-13 Frequency 16-14 Motor Current 16-15 Frequency [%] 16-16 Torque [Nm] 16-17 Speed [RPM] 16-18 Motor Thermal 16-22 Torque [%] 16-26 Power Filtered [kW] 16-27 Power Filtered [hp] 16-3* Drive Status 16-30 DC Link Voltage 16-32 Brake Energy /s 16-33 Brake Energy /2 min 16-34 Heatsink Temp. 16-35 Inverter Thermal 16-36 Inv. Nom. Current 16-37 Inv. Max. Current 16-38 SL Controller State 16-39 Control Card Temp. 16-40 Logging Buffer Full 16-41 Logging Buffer Full 16-43 Timed Actions Status 16-49 Current Fault Source 16-5* Ref. & Feedb. 16-50 External Reference 16-52 Feedback [Unit] 16-53 Digi Pot Reference 16-54 Feedback 1 [Unit] 16-55 Feedback 2 [Unit] 16-56 Feedback 3 [Unit] 16-58 PID Output [%] 16-6* Inputs & Outputs 16-60 Digital Input 16-61 Terminal 53 Switch Setting 16-62 Analog Input 53 16-63 Terminal 54 Switch Setting 16-64 Analog Input 54 16-65 Analog Output 42 [mA]
16-66 Digital Output [bin] 16-67 Pulse Input #29 [Hz] 16-68 Pulse Input #33 [Hz] 16-69 Pulse Output #27 [Hz] 16-70 Pulse Output #29 [Hz] 16-71 Relay Output [bin] 16-72 Counter A 16-73 Counter B 16-75 Analog In X30/11 16-76 Analog In X30/12 16-77 Analog Out X30/8 [mA]
16-8* Fieldbus & FC Port 16-80 Fieldbus CTW 1 16-82 Fieldbus REF 1 16-84 Comm. Option STW 16-85 FC Port CTW 1 16-86 FC Port REF 1 16-9* Diagnosis Readouts 16-90 Alarm Word 16-91 Alarm Word 2 16-92 Warning Word 16-93 Warning Word 2 16-94 Ext. Status Word 16-95 Ext. Status Word 2 16-96 Maintenance Word 18-** Info & Readouts 18-0* Maintenance Log 18-00 Maintenance Log: Item 18-01 Maintenance Log: Action 18-02 Maintenance Log: Time 18-03 Maintenance Log: Date and Time 18-1* Fire Mode Log 18-10 Fire Mode Log: Event 18-11 Fire Mode Log: Time 18-12 Fire Mode Log: Date and Time 18-3* Inputs & Outputs 18-30 Analog Input X42/1 18-31 Analog Input X42/3 18-32 Analog Input X42/5 18-33 Analog Out X42/7 [V] 18-34 Analog Out X42/9 [V] 18-35 Analog Out X42/11 [V] 18-36 Analog Input X48/2 [mA] 18-37 Temp. Input X48/4 18-38 Temp. Input X48/7 18-39 Temp. Input X48/10 18-5* Ref. & Feedb. 18-50 Sensorless Readout [unit] 20-** Drive Closed Loop 20-0* Feedback 20-00 Feedback 1 Source 20-01 Feedback 1 Conversion 20-02 Feedback 1 Source Unit 20-03 Feedback 2 Source 20-04 Feedback 2 Conversion 20-05 Feedback 2 Source Unit 20-06 Feedback 3 Source 20-07 Feedback 3 Conversion 20-08 Feedback 3 Source Unit
20-12 Reference/Feedback Unit 20-13 Minimum Reference/Feedb. 20-14 Maximum Reference/Feedb.
20-2* Feedback/Setpoint 20-20 Feedback Function 20-21 Setpoint 1 20-22 Setpoint 2 20-23 Setpoint 3 20-3* Feedb. Adv. Conv. 20-30 Refrigerant 20-31 User Defined Refrigerant A1 20-32 User Defined Refrigerant A2 20-33 User Defined Refrigerant A3 20-34 Duct 1 Area [m2] 20-35 Duct 1 Area [in2] 20-36 Duct 2 Area [m2] 20-37 Duct 2 Area [in2] 20-38 Air Density Factor [%] 20-6* Sensorless 20-60 Sensorless Unit 20-69 Sensorless Information 20-7* PID Autotuning 20-70 Closed Loop Type 20-71 PID Performance 20-72 PID Output Change 20-73 Minimum Feedback Level 20-74 Maximum Feedback Level 20-79 PID Autotuning 20-8* PID Basic Settings 20-81 PID Normal/ Inverse Control 20-82 PID Start Speed [RPM] 20-83 PID Start Speed [Hz] 20-84 On Reference Bandwidth 20-9* PID Controller 20-91 PID Anti Windup 20-93 PID Proportional Gain 20-94 PID Integral Time 20-95 PID Differentiation Time 20-96 PID Diff. Gain Limit 21-** Ext. Closed Loop 21-0* Ext. CL Autotuning 21-00 Closed Loop Type 21-01 PID Performance 21-02 PID Output Change 21-03 Minimum Feedback Level 21-04 Maximum Feedback Level 21-09 PID Autotuning 21-1* Ext. CL 1 Ref./Fb. 21-10 Ext. 1 Ref./Feedback Unit 21-11 Ext. 1 Minimum Reference 21-12 Ext. 1 Maximum Reference 21-13 Ext. 1 Reference Source 21-14 Ext. 1 Feedback Source 21-15 Ext. 1 Setpoint 21-17 Ext. 1 Reference [Unit] 21-18 Ext. 1 Feedback [Unit] 21-19 Ext. 1 Output [%] 21-2* Ext. CL 1 PID 21-20 Ext. 1 Normal/Inverse Control
21-21 Ext. 1 Proportional Gain 21-22 Ext. 1 Integral Time 21-23 Ext. 1 Differentation Time 21-24 Ext. 1 Dif. Gain Limit
21-3* Ext. CL 2 Ref./Fb. 21-30 Ext. 2 Ref./Feedback Unit 21-31 Ext. 2 Minimum Reference 21-32 Ext. 2 Maximum Reference 21-33 Ext. 2 Reference Source 21-34 Ext. 2 Feedback Source 21-35 Ext. 2 Setpoint 21-37 Ext. 2 Reference [Unit] 21-38 Ext. 2 Feedback [Unit] 21-39 Ext. 2 Output [%] 21-4* Ext. CL 2 PID 21-40 Ext. 2 Normal/Inverse Control 21-41 Ext. 2 Proportional Gain 21-42 Ext. 2 Integral Time 21-43 Ext. 2 Differentation Time 21-44 Ext. 2 Dif. Gain Limit 21-5* Ext. CL 3 Ref./Fb. 21-50 Ext. 3 Ref./Feedback Unit 21-51 Ext. 3 Minimum Reference 21-52 Ext. 3 Maximum Reference 21-53 Ext. 3 Reference Source 21-54 Ext. 3 Feedback Source 21-55 Ext. 3 Setpoint 21-57 Ext. 3 Reference [Unit] 21-58 Ext. 3 Feedback [Unit] 21-59 Ext. 3 Output [%] 21-6* Ext. CL 3 PID 21-60 Ext. 3 Normal/Inverse Control 21-61 Ext. 3 Proportional Gain 21-62 Ext. 3 Integral Time 21-63 Ext. 3 Differentation Time 21-64 Ext. 3 Dif. Gain Limit 22-** Appl. Functions 22-0* Miscellaneous 22-00 External Interlock Delay 22-01 Power Filter Time 22-2* No-Flow Detection 22-20 Low Power Auto Set-up 22-21 Low Power Detection 22-22 Low Speed Detection 22-23 No-Flow Function 22-24 No-Flow Delay 22-26 Dry Pump Function 22-27 Dry Pump Delay 22-3* No-Flow Power Tuning 22-30 No-Flow Power 22-31 Power Correction Factor 22-32 Low Speed [RPM] 22-33 Low Speed [Hz] 22-34 Low Speed Power [kW] 22-35 Low Speed Power [HP] 22-36 High Speed [RPM] 22-37 High Speed [Hz] 22-38 High Speed Power [kW] 22-39 High Speed Power [HP]
22-4* Sleep Mode 22-40 Minimum Run Time 22-41 Minimum Sleep Time 22-42 Wake-up Speed [RPM] 22-43 Wake-up Speed [Hz] 22-44 Wake-up Ref./FB Difference 22-45 Setpoint Boost 22-46 Maximum Boost Time 22-5* End of Curve 22-50 End of Curve Function 22-51 End of Curve Delay 22-6* Broken Belt Detection 22-60 Broken Belt Function 22-61 Broken Belt Torque 22-62 Broken Belt Delay 22-7* Short Cycle Protection 22-75 Short Cycle Protection 22-76 Interval between Starts 22-77 Minimum Run Time 22-78 Minimum Run Time Override 22-79 Minimum Run Time Override Value 22-8* Flow Compensation 22-80 Flow Compensation 22-81 Square-linear Curve Approximation 22-82 Work Point Calculation 22-83 Speed at No-Flow [RPM] 22-84 Speed at No-Flow [Hz] 22-85 Speed at Design Point [RPM] 22-86 Speed at Design Point [Hz] 22-87 Pressure at No-Flow Speed 22-88 Pressure at Rated Speed 22-89 Flow at Design Point 22-90 Flow at Rated Speed 23-** Time-based Functions 23-0* Timed Actions 23-00 ON Time 23-01 ON Action 23-02 OFF Time 23-03 OFF Action 23-04 Occurrence 23-0* Timed Actions Settings 23-08 Timed Actions Mode 23-09 Timed Actions Reactivation 23-1* Maintenance 23-10 Maintenance Item 23-11 Maintenance Action 23-12 Maintenance Time Base 23-13 Maintenance Time Interval 23-14 Maintenance Date and Time 23-1* Maintenance Reset 23-15 Reset Maintenance Word 23-16 Maintenance Text 23-5* Energy Log 23-50 Energy Log Resolution 23-51 Period Start 23-53 Energy Log 23-54 Reset Energy Log 23-6* Trending 23-60 Trend Variable
VLT®HVAC Drive Quick Reference Guide

23-61 Continuous Bin Data 23-62 Timed Bin Data 23-63 Timed Period Start 23-64 Timed Period Stop 23-65 Minimum Bin Value 23-66 Reset Continuous Bin Data 23-67 Reset Timed Bin Data 23-8* Payback Counter 23-80 Power Reference Factor 23-81 Energy Cost 23-82 Investment 23-83 Energy Savings 23-84 Cost Savings 24-** Appl. Functions 2 24-0* Fire Mode 24-00 Fire Mode Function 24-01 Fire Mode Configuration 24-02 Fire Mode Unit 24-03 Fire Mode Min Reference 24-04 Fire Mode Max Reference 24-05 Fire Mode Preset Reference 24-06 Fire Mode Reference Source 24-07 Fire Mode Feedback Source 24-09 Fire Mode Alarm Handling 24-1* Drive Bypass 24-10 Drive Bypass Function 24-11 Drive Bypass Delay Time 24-9* Multi-Motor Funct. 24-90 Missing Motor Function 24-91 Missing Motor Coefficient 1 24-92 Missing Motor Coefficient 2 24-93 Missing Motor Coefficient 3 24-94 Missing Motor Coefficient 4 24-95 Locked Rotor Function 24-96 Locked Rotor Coefficient 1 24-97 Locked Rotor Coefficient 2 24-98 Locked Rotor Coefficient 3 24-99 Locked Rotor Coefficient 4 25-** Cascade Controller 25-0* System Settings 25-00 Cascade Controller 25-02 Motor Start 25-04 Pump Cycling 25-05 Fixed Lead Pump 25-06 Number of Pumps 25-2* Bandwidth Settings 25-20 Staging Bandwidth 25-21 Override Bandwidth 25-22 Fixed Speed Bandwidth 25-23 SBW Staging Delay 25-24 SBW Destaging Delay 25-25 OBW Time 25-26 Destage At No-Flow 25-27 Stage Function 25-28 Stage Function Time 25-29 Destage Function 25-30 Destage Function Time 25-4* Staging Settings 25-40 Ramp Down Delay
25-41 Ramp Up Delay 25-42 Staging Threshold 25-43 Destaging Threshold 25-44 Staging Speed [RPM] 25-45 Staging Speed [Hz] 25-46 Destaging Speed [RPM] 25-47 Destaging Speed [Hz]
25-5* Alternation Settings 25-50 Lead Pump Alternation 25-51 Alternation Event 25-52 Alternation Time Interval 25-53 Alternation Timer Value 25-54 Alternation Predefined Time 25-55 Alternate if Load < 50% 25-56 Staging Mode at Alternation 25-58 Run Next Pump Delay 25-59 Run on Mains Delay 25-8* Status 25-80 Cascade Status 25-81 Pump Status 25-82 Lead Pump 25-83 Relay Status 25-84 Pump ON Time 25-85 Relay ON Time 25-86 Reset Relay Counters 25-9* Service 25-90 Pump Interlock 25-91 Manual Alternation 26-** Analog I/O Option 26-0* Analog I/O Mode 26-00 Terminal X42/1 Mode 26-01 Terminal X42/3 Mode 26-02 Terminal X42/5 Mode 26-1* Analog Input X42/1 26-10 Terminal X42/1 Low Voltage 26-11 Terminal X42/1 High Voltage 26-14 Term. X42/1 Low Ref./Feedb. Value 26-15 Term. X42/1 High Ref./Feedb. Value 26-16 Term. X42/1 Filter Time Constant 26-17 Term. X42/1 Live Zero 26-2* Analog Input X42/3 26-20 Terminal X42/3 Low Voltage 26-21 Terminal X42/3 High Voltage 26-24 Term. X42/3 Low Ref./Feedb. Value 26-25 Term. X42/3 High Ref./Feedb. Value 26-26 Term. X42/3 Filter Time Constant 26-27 Term. X42/3 Live Zero 26-3* Analog Input X42/5 26-30 Terminal X42/5 Low Voltage 26-31 Terminal X42/5 High Voltage 26-34 Term. X42/5 Low Ref./Feedb. Value 26-35 Term. X42/5 High Ref./Feedb. Value 26-36 Term. X42/5 Filter Time Constant 26-37 Term. X42/5 Live Zero 26-4* Analog Out X42/7 26-40 Terminal X42/7 Output 26-41 Terminal X42/7 Min. Scale 26-42 Terminal X42/7 Max. Scale 26-43 Terminal X42/7 Bus Control
26-44 Terminal X42/7 Timeout Preset
26-5* Analog Out X42/9 26-50 Terminal X42/9 Output 26-51 Terminal X42/9 Min. Scale 26-52 Terminal X42/9 Max. Scale 26-53 Terminal X42/9 Bus Control 26-54 Terminal X42/9 Timeout Preset 26-6* Analog Out X42/11 26-60 Terminal X42/11 Output 26-61 Terminal X42/11 Min. Scale 26-62 Terminal X42/11 Max. Scale 26-63 Terminal X42/11 Bus Control 26-64 Terminal X42/11 Timeout Preset 31-** Bypass Option 31-00 Bypass Mode 31-01 Bypass Start Time Delay 31-02 Bypass Trip Time Delay 31-03 Test Mode Activation 31-10 Bypass Status Word 31-11 Bypass Running Hours 31-19 Remote Bypass Activation 35-** Sensor Input Option 35-0* Temp. Input Mode 35-00 Term. X48/4 Temp. Unit 35-01 Term. X48/4 Input Type 35-02 Term. X48/7 Temp. Unit 35-03 Term. X48/7 Input Type 35-04 Term. X48/10 Temp. Unit 35-05 Term. X48/10 Input Type 35-06 Temperature Sensor Alarm Function 35-1* Temp. Input X48/4 35-14 Term. X48/4 Filter Time Constant 35-15 Term. X48/4 Temp. Monitor 35-16 Term. X48/4 Low Temp. Limit 35-17 Term. X48/4 High Temp. Limit 35-2* Temp. Input X48/7 35-24 Term. X48/7 Filter Time Constant 35-25 Term. X48/7 Temp. Monitor 35-26 Term. X48/7 Low Temp. Limit 35-27 Term. X48/7 High Temp. Limit 35-3* Temp. Input X48/10 35-34 Term. X48/10 Filter Time Constant 35-35 Term. X48/10 Temp. Monitor 35-36 Term. X48/10 Low Temp. Limit 35-37 Term. X48/10 High Temp. Limit 35-4* Analog Input X48/2 35-42 Term. X48/2 Low Current 35-43 Term. X48/2 High Current 35-44 Term. X48/2 Low Ref./Feedb. Value 35-45 Term. X48/2 High Ref./Feedb. Value 35-46 Term. X48/2 Filter Time Constant 35-47 Term. X48/2 Live Zero 99-* Devel support 99-00 DAC 1 selection 99-01 DAC 2 selection 99-02 DAC 3 selection 99-03 DAC 4 selection 99-04 DAC 1 scale 99-05 DAC 2 scale
99-06 DAC 3 scale 99-07 DAC 4 scale 99-08 Test param 1 99-09 Test param 2 99-10 DAC Option Slot 99-11 RFI 2 99-12 Fan 99-13 Idle time 99-14 Paramdb requests in queue 99-15 Secondary Timer at Inverter Fault 99-16 No of Current Sensors 99-20 HS Temp. (PC1) 99-21 HS Temp. (PC2) 99-22 HS Temp. (PC3) 99-23 HS Temp. (PC4) 99-24 HS Temp. (PC5) 99-25 HS Temp. (PC6) 99-26 HS Temp. (PC7) 99-27 HS Temp. (PC8) 99-29 Platform Version 99-40 StartupWizardState 99-90 Options present 99-91 Motor Power Internal 99-92 Motor Voltage Internal 99-93 Motor Frequency Internal 99-94 Imbalance derate [%] 99-95 Temperature derate [%] 99-96 Overload derate [%]
VLT®HVAC Drive Quick Reference Guide

NOTE
OVC can not be activated when running a PM motor
(when1-10 Motor Construction is set to [1] PM non salient
SPM).
Mains Drop-out
During a mains drop-out, the frequency converter keeps
running until the intermediate circuit voltage drops below
the minimum stop level, which is typically 15% below the
frequency converter's lowest rated supply voltage. The
mains voltage before the drop-out and the motor load
determines how long it takes for the inverter to coast.
Static Overload in VVCplus mode
When the frequency converter is overloaded (the torque
limit in 4-16 Torque Limit Motor Mode/4-17 Torque Limit
Generator Mode is reached), the controls reduces the
output frequency to reduce the load.
If the overload is excessive, a current may occur that
makes the frequency converter cut out after approx. 5-10
sec.
Operation within the torque limit is limited in time (0-60
sec.) in 14-25 Trip Delay at Torque Limit.
2.13.1 Motor Thermal Protection
This is the way Danfoss is protecting the motor from being
overheated. It is an electronic feature that simulates a
bimetal relay based on internal measurements. The charac-
teristic is shown in Illustration 2.21
1.21.0 1.4
30
10
20
100
60
40
50
1.81.6 2.0
2000
500
200
400
300
1000
600
t [s]
175ZA052.12
fOUT = 2 x f
M,N
fOUT = 0.2 x f
M,N
fOUT = 1 x f
M,N(par. 1-23)
I
MN
(par. 1-24)
I
M
Illustration 2.21 The X-axis is showing the ratio between Imotor
and Imotor nominal. The Y-axis is showing the time in seconds
before the ETR cuts off and trips the frequency converter. The
curves are showing the characteristic nominal speed at twice the
nominal speed and at 0,2x the nominal speed.
It is clear that at lower speed the ETR cuts of at lower heat
due to less cooling of the motor. In that way the motor
are protected from being over heated even at low speed.
The ETR feature is calculating the motor temperature
based on actual current and speed. The calculated
temperature is visible as a read out parameter in
16-18 Motor Thermal in the frequency converter.
The thermistor cut-out value is > 3kΩ.
Integrate a thermistor (PTC sensor) in the motor for
winding protection.
Motor protection can be implemented using a range of
techniques: PTC sensor in motor windings; mechanical
thermal switch (Klixon type); or Electronic Thermal Relay
(ETR).
1330
550
250
-20°C
175HA183.10
4000
3000
R
(Ω)
nominel
nominel -5°C nominel +5°C
[°C]
VLT®HVAC Drive Quick Reference Guide

Using a digital input and 24V as power supply:
Example: The frequency converter trips when the motor
temperature is too high.
Parameter set-up:
Set 1-90 Motor Thermal Protection to Thermistor Trip [2]
Set 1-93 Thermistor Source to Digital Input 33 [6]
PTC / Thermistor
OFF
ON
+24V
12 13 18 3732
A
2719 29 33
B
20
GND
R<6.6 k Ω >10.8 k Ω
130BA151.11
Using a digital input and 10V as power supply:
Example: The frequency converter trips when the motor
temperature is too high.
Parameter set-up:
Set 1-90 Motor Thermal Protection to Thermistor Trip [2]
Set 1-93 Thermistor Source to Digital Input 33 [6]
PTC / Thermistor R
OFF
ON
<800 Ω
+10V
130BA152.10
>2.7 kΩ
12 13 18 37322719 29 33 20
5550
39 42 53 54
Using an analog input and 10V as power supply:
Example: The frequency converter trips when the motor
temperature is too high.
Parameter set-up:
Set 1-90 Motor Thermal Protection to Thermistor Trip [2]
Set 1-93 Thermistor Source to Analog Input 54 [2]
Do not select a reference source.
555039 42 53 54
R
<3.0 k Ω >3.0 k Ω
+10V
130BA153.11
PTC / Thermistor
OFF
ON
Input
Digital/analog
Supply Voltage V
Cut-out Values
Threshold
Cut-out Values
Digital 24 < 6.6kΩ- > 10.8kΩ
Digital 10 < 800Ω- > 2.7kΩ
Analog 10 < 3.0kΩ- > 3.0kΩ
NOTE
Check that the chosen supply voltage follows the specifi-
cation of the used thermistor element.
Summary
With the Torque limit feature the motor is protected for
being overloaded independent of the speed. With the ETR
the motor is protected for being over heated and there is
no need for any further motor protection. That means
when the motor is heated up the ETR timer controls for
how long time the motor can be running at the high
temperature before it is stopped in order to prevent over
heating. If the motor is overloaded without reaching the
temperature where the ETR shuts of the motor, the torque
limit is protecting the motor and application for being
overloaded.
ETR is activated in 1-90 Motor Thermal Protection and is
controlled in 4-16 Torque Limit Motor Mode. The time
before the torque limit warning trips the frequency
converter is set in 14-25 Trip Delay at Torque Limit.
VLT®HVAC Drive Quick Reference Guide

8.7.4 Fault Messages
The warning/alarm information below defines each
warning/alarm condition, provides the probable cause for
the condition, and details a remedy or troubleshooting
procedure.
WARNING 1, 10 Volts low
The control card voltage is below 10V from terminal 50.
Remove some of the load from terminal 50, as the 10V
supply is overloaded. Max. 15mA or minimum 590Ω.
This condition can be caused by a short in a connected
potentiometer or improper wiring of the potentiometer.
Troubleshooting
Remove the wiring from terminal 50. If the warning clears,
the problem is with the customer wiring. If the warning
does not clear, replace the control card.
WARNING/ALARM 2, Live zero error
This warning or alarm will only appear if programmed by
the user in 6-01 Live Zero Timeout Function. The signal on
one of the analog inputs is less than 50% of the minimum
value programmed for that input. This condition can be
caused by broken wiring or faulty device sending the
signal.
Troubleshooting
Check connections on all the analog input
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common. MCB 101 terminals
11 and 12 for signals, terminal 10 common. MCB
109 terminals 1, 3, 5 for signals, terminals 2, 4, 6
common).
Check that the frequency converter programming
and switch settings match the analog signal type.
Perform Input Terminal Signal Test.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also appears
for a fault in the input rectifier on the frequency converter.
Options are programmed at 14-12 Function at Mains
Imbalance.
Troubleshooting
Check the supply voltage and supply currents to the
frequency converter.
WARNING 5, DC link voltage high
The intermediate circuit voltage (DC) is higher than the
high voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is lower than the low
voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Troubleshooting
Connect a brake resistor
Extend the ramp time
Change the ramp type
Activate the functions in 2-10 Brake Function
Increase 14-26 Trip Delay at Inverter Fault
WARNING/ALARM 8, DC under voltage
If the intermediate circuit voltage (DC link) drops below
the under voltage limit, the frequency converter checks if a
24V DC backup supply is connected. If no 24V DC backup
supply is connected, the frequency converter trips after a
fixed time delay. The time delay varies with unit size.
Troubleshooting
Check that the supply voltage matches the
frequency converter voltage.
Perform input voltage test
Perform soft charge circuit test
WARNING/ALARM 9, Inverter overload
The frequency converter is about to cut out because of an
overload (too high current for too long). The counter for
electronic, thermal inverter protection gives a warning at
98% and trips at 100%, while giving an alarm. The
frequency converter cannot be reset until the counter is
below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
Troubleshooting
Compare the output current shown on the LCP
with the frequency converter rated current.
Compare the output current shown on the LCP
with measured motor current.
Display the Thermal Drive Load on the LCP and
monitor the value. When running above the
frequency converter continuous current rating,
the counter should increase. When running below
the frequency converter continuous current
rating, the counter should decrease.
See the derating section in the Design Guide for more
details if a high switching frequency is required.
WARNING/ALARM 10, Motor overload temperature
According to the electronic thermal protection (ETR), the
motor is too hot. Select whether the frequency converter
gives a warning or an alarm when the counter reaches
100% in 1-90 Motor Thermal Protection. The fault occurs
when the motor is overloaded by more than 100% for too
long.
Troubleshooting
Check for motor overheating.
Check if the motor is mechanically overloaded
Check that the motor current set in 1-24 Motor
Current is correct.
VLT®HVAC Drive Quick Reference Guide

Ensure that Motor data in parameters 1-20
through 1-25 are set correctly.
If an external fan is in use, check in 1-91 Motor
External Fan that it is selected.
Running AMA in 1-29 Automatic Motor Adaptation
(AMA) may tune the frequency converter to the
motor more accurately and reduce thermal
loading.
WARNING/ALARM 11, Motor thermistor over temp
The thermistor might be disconnected. Select whether the
frequency converter gives a warning or an alarm in
1-90 Motor Thermal Protection.
Troubleshooting
Check for motor overheating.
Check if the motor is mechanically overloaded.
When using terminal 53 or 54, check that the
thermistor is connected correctly between either
terminal 53 or 54 (analog voltage input) and
terminal 50 (+10V supply) and that the terminal
switch for 53 or 54 is set for voltage. Check
1-93 Thermistor Source selects terminal 53 or 54.
When using digital inputs 18 or 19, check that
the thermistor is connected correctly between
either terminal 18 or 19 (digital input PNP only)
and terminal 50. Check 1-93 Thermistor Source
selects terminal 18 or 19.
WARNING/ALARM 12, Torque limit
The torque has exceeded the value in 4-16 Torque Limit
Motor Mode or the value in 4-17 Torque Limit Generator
Mode. 14-25 Trip Delay at Torque Limit can change this from
a warning only condition to a warning followed by an
alarm.
Troubleshooting
If the motor torque limit is exceeded during ramp
up, extend the ramp up time.
If the generator torque limit is exceeded during
ramp down, extend the ramp down time.
If torque limit occurs while running, possibly
increase the torque limit. Be sure the system can
operate safely at a higher torque.
Check the application for excessive current draw
on the motor.
WARNING/ALARM 13, Over current
The inverter peak current limit (approximately 200% of the
rated current) is exceeded. The warning lasts about 1.5
secs., then the frequency converter trips and issues an
alarm. This fault may be caused by shock loading or fast
acceleration with high inertia loads. If extended mechanical
brake control is selected, trip can be reset externally.
Troubleshooting
Remove power and check if the motor shaft can
be turned.
Check that the motor size matches the frequency
converter.
Check parameters 1-20 through 1-25. for correct
motor data.
ALARM 14, Earth (ground) fault
There is current from the output phases to earth, either in
the cable between the frequency converter and the motor
or in the motor itself.
Troubleshooting:
Remove power to the frequency converter and
repair the earth fault.
Check for earth faults in the motor by measuring
the resistance to ground of the motor leads and
the motor with a megohmmeter.
ALARM 15, Hardware mismatch
A fitted option is not operational with the present control
board hardware or software.
Record the value of the following parameters and contact
your Danfoss supplier:
15-40 FC Type
15-41 Power Section
15-42 Voltage
15-43 Software Version
15-45 Actual Typecode String
15-49 SW ID Control Card
15-50 SW ID Power Card
15-60 Option Mounted
15-61 Option SW Version (for each option slot)
ALARM 16, Short circuit
There is short-circuiting in the motor or motor wiring.
Remove power to the frequency converter and repair the
short circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
The warning will only be active when 8-04 Control Word
Timeout Function is NOT set to OFF.
If 8-04 Control Word Timeout Function is set to Stop and
Trip, a warning appears and the frequency converter ramps
down until it stops then displays an alarm.
Troubleshooting
Check connections on the serial communication
cable.
Increase 8-03 Control Word Timeout Time
Check the operation of the communication
equipment.
VLT®HVAC Drive Quick Reference Guide

Verify a proper installation based on EMC
requirements.
ALARM 18, Start failed
The speed has not been able to exceed 1-77 Compressor
Start Max Speed [RPM] during start within the allowed time.
(set in 1-79 Compressor Start Max Time to Trip). This may be
caused by a blocked motor.
WARNING 23, Internal fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor ([0] Disabled).
For the D, E, and F Frame filters, the regulated voltage to
the fans is monitored.
Troubleshooting
Check for proper fan operation.
Cycle power to the frequency converter and
check that the fan operates briefly at start up.
Check the sensors on the heatsink and control
card.
WARNING 24, External fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor ([0] Disabled).
Troubleshooting
Check for proper fan operation.
Cycle power to the frequency converter and
check that the fan operates briefly at start up.
Check the sensors on the heatsink and control
card.
WARNING 25, Brake resistor short circuit
The brake resistor is monitored during operation. If a short
circuit occurs, the brake function is disabled and the
warning appears. The frequency converter is still
operational but without the brake function. Remove power
to the frequency converter and replace the brake resistor
(see 2-15 Brake Check).
WARNING/ALARM 26, Brake resistor power limit
The power transmitted to the brake resistor is calculated as
a mean value over the last 120 seconds of run time. The
calculation is based on the intermediate circuit voltage and
the brake resistance value set in 2-16 AC brake Max.
Current. The warning is active when the dissipated braking
is higher than 90% of the brake resistance power. If Trip [2]
is selected in 2-13 Brake Power Monitoring, the frequency
converter will trip when the dissipated braking power
reaches 100%.
WARNING/ALARM 27, Brake chopper fault
The brake transistor is monitored during operation and if a
short circuit occurs, the brake function is disabled and a
warning is issued. The frequency converter is still
operational but, since the brake transistor has short-
circuited, substantial power is transmitted to the brake
resistor, even if it is inactive.
Remove power to the frequency converter and remove the
brake resistor.
WARNING/ALARM 28, Brake check failed
The brake resistor is not connected or not working.
Check 2-15 Brake Check.
ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been
exceeded. The temperature fault will not reset until the
temperature falls below a defined heatsink temperature.
The trip and reset points are different based on the
frequency converter power size.
Troubleshooting
Check for the following conditions.
Ambient temperature too high.
Motor cable too long.
Incorrect airflow clearance above and below the
frequency converter
Blocked airflow around the frequency converter.
Damaged heatsink fan.
Dirty heatsink.
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase W.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period. Let the unit cool to operating temperature.
WARNING/ALARM 34, communication fault
The fieldbus on the communication option card is not
working.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the frequency converter is lost and 14-10 Mains Failure is
NOT set to [0] No Function. Check the fuses to the
frequency converter and mains power supply to the unit.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
the table below is displayed.
VLT®HVAC Drive Quick Reference Guide

Troubleshooting
Cycle power
Check that the option is properly installed
Check for loose or missing wiring
It may be necessary to contact your Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
No. Text
0 Serial port cannot be initialised. Contact your
Danfoss supplier or Danfoss Service Department.
256-258 Power EEPROM data is defective or too old
512-519 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
783 Parameter value outside of min/max limits
1024-1284 Internal fault. Contact your Danfoss supplier or the
Danfoss Service Department.
1299 Option SW in slot A is too old
1300 Option SW in slot B is too old
1302 Option SW in slot C1 is too old
1315 Option SW in slot A is not supported (not allowed)
1316 Option SW in slot B is not supported (not allowed)
1318 Option SW in slot C1 is not supported (not
allowed)
1379-2819 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
2820 LCP stack overflow
2821 Serial port overflow
2822 USB port overflow
3072-5122 Parameter value is outside its limits
5123 Option in slot A: Hardware incompatible with
control board hardware
5124 Option in slot B: Hardware incompatible with
control board hardware
5125 Option in slot C0: Hardware incompatible with
control board hardware
5126 Option in slot C1: Hardware incompatible with
control board hardware
5376-6231 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sensor.
The signal from the IGBT thermal sensor is not available on
the power card. The problem could be on the power card,
on the gate drive card, or the ribbon cable between the
power card and gate drive card.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-02 Terminal 29 Mode.
WARNING 42, Overload of digital output on X30/6 or
overload of digital output on X30/7
For X30/6, check the load connected to X30/6 or remove
the short-circuit connection. Check 5-32 Term X30/6 Digi
Out (MCB 101).
For X30/7, check the load connected to X30/7 or remove
the short-circuit connection. Check 5-33 Term X30/7 Digi
Out (MCB 101).
ALARM 45, Earth fault 2
Earth (ground) fault on start up.
Troubleshooting
Check for proper earthing (grounding) and loose
connections.
Check for proper wire size.
Check motor cables for short-circuits or leakage
currents.
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by the switch
mode power supply (SMPS) on the power card: 24V, 5V,
+/- 18V. When powered with 24V DC with the MCB 107
option, only the 24V and 5V supplies are monitored. When
powered with three phase mains voltage, all three supplies
are monitored.
Troubleshooting
Check for a defective power card.
Check for a defective control card.
Check for a defective option card.
If a 24V DC power supply is used, verify proper
supply power.
WARNING 47, 24V supply low
The 24 V DC is measured on the control card. The external
24V DC backup power supply may be overloaded,
otherwise contact your Danfoss supplier.
WARNING 48, 1.8V supply low
The 1.8V DC supply used on the control card is outside of
allowable limits. The power supply is measured on the
control card. Check for a defective control card. If an
option card is present, check for an overvoltage condition.
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM], the frequency converter will show a
warning. When the speed is below the specified limit in
1-86 Trip Speed Low [RPM] (except when starting or
stopping) the frequency converter will trip.
ALARM 50, AMA calibration failed
Contact your Danfoss supplier or Danfoss Service
Department.
VLT®HVAC Drive Quick Reference Guide

ALARM 51, AMA check Unom and Inom
The settings for motor voltage, motor current, and motor
power are wrong. Check the settings in parameters 1-20 to
1-25.
ALARM 52, AMA low Inom
The motor current is too low. Check the setting in
4-18 Current Limit.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
ALARM 55, AMA Parameter out of range
The parameter values of the motor are outside of the
acceptable range. AMA will not run.
56 ALARM, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA internal fault
Try to restart AMA again. Repeated restarts may over heat
the motor.
ALARM 58, AMA internal fault
Contact your Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in 4-18 Current Limit.
Ensure that Motor data in parameters 1-20 through 1-25
are set correctly. Possibly increase the current limit. Be sure
the system can operate safely at a higher limit.
WARNING 60, External interlock
A digital input signal is indicating a fault condition external
to the frequency converter. An external interlock has
commanded the frequency converter to trip. Clear the
external fault condition. To resume normal operation,
apply 24V DC to the terminal programmed for external
interlock. Reset the frequency converter.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
4-19 Max Output Frequency. Check the application to
determine the cause. Possibly increase the output
frequency limit. Be sure the system can operate safely at a
higher output frequency. The warning will clear when the
output drops below the maximum limit.
WARNING/ALARM 65, Control card over temperature
The cutout temperature of the control card is 80°C.
Troubleshooting
•Check that the ambient operating temperature is
within limits.
•Check for clogged filters.
•Check fan operation.
•Check the control card.
WARNING 66, Heatsink temperature low
The frequency converter is too cold to operate. This
warning is based on the temperature sensor in the IGBT
module.
Increase the ambient temperature of the unit. Also, a
trickle amount of current can be supplied to the frequency
converter whenever the motor is stopped by setting
2-00 DC Hold/Preheat Current at 5% and 1-80 Function at
Stop
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down. Check that the configuration
change is intentional and reset the unit.
ALARM 68, Safe stop activated
Loss of the 24V DC signal on terminal 37 has caused the
filter to trip. To resume normal operation, apply 24V DC to
terminal 37 and reset the filter.
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. Contact
your supplier with the type code of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
ALARM 71, PTC 1 safe stop
Safe Stop has been activated from the MCB 112 PTC
Thermistor Card (motor too warm). Normal operation can
be resumed when the MCB 112 applies 24V DC to T-37
again (when the motor temperature reaches an acceptable
level) and when the Digital Input from the MCB 112 is
deactivated. When that happens, a reset signal must be is
be sent (via Bus, Digital I/O, or by pressing [RESET]).
ALARM 72, Dangerous failure
Safe Stop with Trip Lock. The Dangerous Failure Alarm is
issued if the combination of safe stop commands is
unexpected. This is the case if the MCB 112 VLT PTC
Thermistor Card enables X44/10 but safe stop is somehow
not enabled. Furthermore, if the MCB 112 is the only
device using safe stop (specified through selection [4] or
[5] in 5-19 Terminal 37 Safe Stop), an unexpected
combination is activation of safe stop without the X44/10
being activated. The following table summarizes the
unexpected combinations that lead to Alarm 72. Note that
if X44/10 is activated in selection 2 or 3, this signal is
ignored! However, the MCB 112 will still be able to activate
Safe Stop.
ALARM 80, Drive initialised to default value
Parameter settings are initialised to default settings after a
manual reset. Reset the unit to clear the alarm.
VLT®HVAC Drive Quick Reference Guide

ALARM 92, No flow
Ano-flow condition has been detected in the system.
22-23 No-Flow Function is set for alarm. Troubleshoot the
system and reset the frequency converter after the fault
has been cleared.
ALARM 93, Dry pump
A no-flow condition in the system with the frequency
converter operating at high speed may indicate a dry
pump. 22-26 Dry Pump Function is set for alarm.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
ALARM 94, End of curve
Feedback is lower than the set point. This may indicate
leakage in the system. 22-50 End of Curve Function is set for
alarm. Troubleshoot the system and reset the frequency
converter after the fault has been cleared.
ALARM 95, Broken belt
Torque is below the torque level set for no load, indicating
a broken belt. 22-60 Broken Belt Function is set for alarm.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle
protection. 22-76 Interval between Starts is enabled.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to short cycle
protection. 22-76 Interval between Starts is enabled.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
WARNING 98, Clock fault
Time is not set or the RTC clock has failed. Reset the clock
in 0-70 Date and Time.
WARNING 200, Fire mode
This indicates the frequency converter is operating in fire
mode. The warning clears when fire mode is removed. See
the fire mode data in the alarm log.
WARNING 201, Fire mode was active
This indicates the frequency converter had entered fire
mode. Cycle power to the unit to remove the warning. See
the fire mode data in the alarm log.
WARNING 202, Fire mode limits exceeded
While operating in fire mode one or more alarm conditions
have been ignored which would normally trip the unit.
Operating in this condition voids unit warranty. Cycle
power to the unit to remove the warning. See the fire
mode data in the alarm log.
WARNING 203, Missing motor
With a frequency converter operating multi-motors, an
under-load condition was detected. This could indicate a
missing motor. Inspect the system for proper operation.
WARNING 204, Locked rotor
With a frequency converter operating multi-motors, an
overload condition was detected. This could indicate a
locked rotor. Inspect the motor for proper operation.
WARNING 250, New spare part
A component in the frequency converter has been
replaced. Reset the frequency converter for normal
operation.
WARNING 251, New typecode
The power card or other components have been replaced
and the typecode changed. Reset to remove the warning
and resume normal operation.
VLT®HVAC Drive Quick Reference Guide