GE Industrial Solutions ASTAT BP - Manual (Page 56)

ASTAT BP User Manual
56 GE Industrial Solutions ©2013 GE Company All Rights Reserved
77.. TROUBLE SHOOTING
Upon fault – motor stops, the Fault LED lights and Fault Relay chances position. The LCD shows TRIP: < fault
description>. (for example: Trip: Undercurrent).
Storage Error
Storage Error displays in case of a failure in parameter storing.
Wait 3 seconds and try to store again.
If does not help, load the default parameters of the ASTAT-BP and re-program all
parameters.
To obtain default parameters refer to section 4.5.3 page 21.
Access Locked/
Unauthorized
Access
Avoids parameter changing when SETTINGS LOCK parameter is set to
PARAMETER LOCKED.
If parameter changing is required set
SETTINGS LOCK parameter to PARAM
NOT LOCKED.
For
SETTINGS LOCK parameter setting refer to section 4.7.2 page 26.
Thermistor Trip Trips the ASTAT-BP when the motor thermistor resistance decreases below trip
level set.
Check resistance of the thermistor and cables; Check motor temperature near
thermistor location.
For Thermistor Trip protection setting refer to section 4.7.7 page 37.
Too Many Starts Trips the ASTAT-BP if the number of starts, during Duty Cycle Time
exceeds the preset number.
Wait until motor and ASTAT-BP cool down – according to
Number Of Starts,
Duty Cycle Time and Start Lockout settings. Refer to section 4.7.3
page 31.
Long Start Time Trips the ASTAT-BP if output voltage does not reach nominal at the preset Max.
Start time.
Check
Starter Current and Max. Start Time settings. Increase
Starting Voltage, Current Limit & Max. Start Time or decrease
Ramp UP Time as necessary.
For start Settings Parameters refer to section 4.7.3 page 31.
O/C JAM Fault Trips the ASTAT-BP when:
• Instantaneously when current exceeds 8.5 x ASTAT-BP Current
• During starting when current exceeds 8.5 x Motor Current
• During running when current exceeds 100-300% of Motor Current.
O/C JAM Fault has a programmable delay of 0-5 seconds where the ASTAT-
BP detects the fault and does not trip before time delay has elapsed (delay is
overriden when current reaches 8.5 x ASTAT-BP Current).
Check that motor is not stalled or jammed.
Check Motor Current and Starter Current settings.
Check motor and cable connections.
Perform a “Megger” test to verify motor and cable’s condition.
For protection parameters settings refer to section 4.7.2 page 26.
CAUTION
Check that “Megger” maximum voltage is no more than 500V!
Disconnect terminal 21 before performing a “Megger” test.