Understanding the fault led, 3 to 7-5, Understanding the fault led -3 – Rockwell Automation 160 DEVICENET (DN1) MODULE FRN 1-2.XX User Manual

Page 58

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Publication 0160-5.5 - September 1997

Troubleshooting

7-3

Understanding the FAULT LED

When the FAULT LED is Red, a drive fault is present. The Communi-
cation Module uses two sets of fault codes depending on the setting of
P15 - [Interface Select].

When P15 - [Interface Select] is set to a 0, the Bulletin 160 SSC
interface
, P7 - [Last Fault] uses the fault codes in Table 2.

When P15 - [Interface Select] is set to a 1, ODVA Drive Profile
Interface
, P12 - [Last Fault] uses the fault codes in Table 3.

Table 2: Bulletin 160 SSC Interface Fault Codes

Fault Code

Fault

Indication

Description

Corrective Action

0

No Fault

The drive is currently not faulted.

No action required.

3

Power Loss

DC Bus voltage remains below 85% nominal on power up
for longer than 5 seconds.

Monitor incoming AC line for low voltage or line power
interruption.

4

Under Voltage

DC Bus voltage fell below the minimum value while the
motor was running.

Monitor incoming AC line for low voltage or line power
interruption.

5

Over Voltage

DC Bus maximum voltage exceeded.

Bus overvoltage caused by motor regeneration. Extend
the decel time, or install dynamic brake option or external
capacitor module.

6

Motor Stalled

Motor has stalled. Motor load is excessive.

Longer accel time or reduced load required.

7

Motor Overload

Internal electronic overload trip. Excessive motor load
exists.

Reduce motor load.

8

Over Temperature Excessive heat detected.

Clear blocked or dirty heat sink fins. Check ambient tem-
perature. Check for blocked or non-operating fan.

12

Over Current

Overcurrent detected in hardware trip circuit.

Check short circuit at the drive output or excessive load
conditions at the motor.

22

Drive Reset

Stop input not present.

Check stop input at TB3 terminal 8.

32

EEPROM Fault

EEPROM has invalid data.

Reset EEPROM using P56 - [Reset Defaults].

33

Max Retries Fault Drive did not reset fault within the max retries specified.

Repair system fault.

38

Phase U

Phase to ground fault detected between drive and motor
phase U.

Check wiring between drive and motor. Check motor for
grounded phase.

39

Phase V

Phase to ground fault detected between drive and motor
phase V.

Check wiring between drive and motor. Check motor for
grounded phase.

40

Phase W

Phase to ground fault detected between drive and motor
phase W.

Check wiring between drive and motor. Check motor for
grounded phase.

41

UV Short

Excessive current has been detected between these two
drive output terminals.

Check the motor and external wiring to the drive output
terminals for a shorted condition.

42

UW Short

Excessive current has been detected between these two
drive output terminals.

Check the motor and external wiring to the drive output
terminals for a shorted condition.

43

VW Short

Excessive current has been detected between these two
drive output terminals.

Check the motor and external wiring to the drive output
terminals for a shorted condition.

48

Reprogramming

Fault

Occurs when reset defaults is performed.

Clear fault.

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