Rockwell Automation 1305 AC Drive, Series A and B, Firmware 4.xx-5.xx User Manual

Page 133

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Chapter 6 – Troubleshooting and Fault Information

6-3

Table 6.B Bulletin 1305 Fault Descriptions

Name & Fault Number

Description

Action to Take

Diag C Lim FauIt
F36

The drive output current has exceeded the software [Current
Limit]
and the [Cur Lim Trip En] parameter was enabled.

Check programming of [Curr Lim Trip En] parameter. Check
for excess load, improper DC boost setting, DC brake volts set
too high or other causes of excess current.

Drive

HIM

The checksum read from the HIM’s EEPROM does not match
the checksum calculated from the EEPROM data.

Repeat operation. Replace HIM.

Drive Reset FauIt
F22

Occurs on power-up. Caused by having the Start Input (or Run
Input) closed, with the Stop Input open and [Run On Power Up]
= Disabled.

Check stop connection at TB2, terminal 8.

EEprom Fault
F32

EEPROM has invalid data or can not be programmed to valid
data.

Check cable connection from main control board to power board.
Reset to Default Parameters and Cycle power.

Hz Err Fault
F29

This fault indicates that there is not a valid operating frequency.
It can be caused by any of the following:

1. [Maximum Frequency] is less than [Minimum Freq].

S p re ue

es

d s p

d d e

e

per

1. Check [Minimum Freq] and [Maximum Freq] parameters.
2. Check [Skip Freq 1], [Skip Freq 2], [Skip Freq 3] and

[Skip Freq Band] parameters.

e

r r e

res

se

e

s r r sdu er

2. Skip frequencies and skip bandwidth eliminate all operating

frequencies.

3. 4-20mA input signal speed reference has been lost or is out

of range and [4-20mA Loss Sel] is set for ‘‘Stop-Fault.”

3. Check for broken wires, loose connections or transducer

loss at 4-20mA input, TB2.

Hz Sel Fault
F30

An adapter that is not connected has been chosen as the active
frequency source.

Connect proper adapter or change active frequency source.

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