User Manual Instruction Manual
Troubleshooting the Drive
12-17
Software
Fault
89
Microprocessor handshake
error.
Replace Main Control Board.
SW
OverCurrent
36
➀
The drive output current has
exceeded the software
current.
Check for excess load,
improper DC boost setting. DC
brake volts set too high.
TorqProv Spd
Band
20
Difference between
Commanded Speed and
Encoder Speed has exceeded
the level set in Spd Dev Band
for a time period greater than
Spd Band Integrat.
1. Check wiring between drive
and motor.
2. Check release of
mechanical brake.
Tr ns i s t r
OvrTemp
9
➀
Output transistors have
exceeded their maximum
operating temperature.
Check for proper temperature
and flow rate of coolant.
UnderVoltage
4
➀
➂
DC bus voltage fell below the
minimum value of 407V DC at
400/480V input or 204V DC at
200/240V input.
Enable/disable with Fault
Config 1(233).
Monitor the incoming AC line
for low voltage or power
interruption.
UserSet1
Chksum
101
➁
The checksum read from the
user set does not match the
checksum calculated.
Re-save user set.
UserSet2
Chksum
102
➁
UserSet3
Chksum
103
➁
Table 12.8 – Fault Names Cross-Referenced by Fault Number
No.
1
Fault No.
1
Fault No
1
Fault
2 Auxiliary Input 29 Analog In Loss 87 IXo VoltageRange
3 Power Loss 39 Phase V to Grnd 88 Software Fault
4 UnderVoltage 40 Phase W to Grnd 89 Software Fault
5 OverVoltage 41 Phase UV Short 90 Encoder Quad Err
7 Motor Overload 42 Phase VW Short 91 Encoder Loss
8 Heatsink OvrTemp 43 Phase UW Short 92 Pulse ln Loss
9 Trnsistr OvrTemp 48 Params Defaulted 93 Hardware Fault
12 HW OverCurrent 49 Drive PowerUp 100 Parameter Chksum
13 Ground Fault 51 Flt QueueCleared 101-
103
UserSetX Chksum
15 Load Loss 52 Faults Cleared 104 Pwr Brd Chksum1
16 Motor Thermistor 55 Cntl Bd OverLoad 105 Pwr Brd Chksum2
17 Input Phase Loss 63 Shear Pin 106 Incompat MCB-PB
18 Hardware PTC 64 Drive OverLoad 107 Replaced MCB-PB
20 TorqProv Spd Band 69 DB Resistance 108 Anlg Cal Chksum
21 Output Phase Loss 70 Power Unit 120 I/O Mismatch
24 Decel Inhibit 71- 75 Port 1-5 Net Loss 121 I/O Comm Loss
25 OverSpeed Limit 77 IR Volts Range 122 I/O Failure
28 See Manual 78 FluxAmpsRef Rang 130 Hardware Fault
Table 12.7 – Fault Descriptions and Corrective Actions (Continued)
Fault
No.
Type
Description Action