GE Industrial Solutions ASTAT-CD Plus Solid-State Starters - Manual (Page 31)

ASTAT-CD Plus Service Instructions
31
Symptom or Error & (Error Code) Possible Cause Measures to be taken
Phase A, B, C loss (Ex19) No input / output phases Check power wire harness for 1L1, 3L2, 5L3, 2T1, 4T2
(Ex20) and 6T3
(Ex21) Defective thyristor or ribbon wire Verify gate and cathode wire harness.
harness loose or defective Verify thyristors
Stalled rotor (Ex22) Equipment detected stalled motor rotor Restart equipment and check for an appreciable
loss in motor speed at any time
Internal error (Ex23) Micro-controller malfunction Check IC1 and IC8 are correctly inserted in their
sockets. Check for noise on control voltage
power or line
Long start time (Ex25) Current limit condition present more Increase current limit and / or
than 2 x ta sec. or 240 sec. acceleration ramp time
(ta = acceleration ramp time)
Long slow speed time (Ex26) Equipment has been in slow speed Reduce time slow speed is engaged
mode more than 120 sec.
Lock-out (Ex27) The time between startings is less that Check if settings are correct
the adjusted in parameter "LKxx" This protection may be disabled
Undervoltage (Ex28) The line voltage exceeds of limit set Check if settings are correct.
Overvoltage (Ex29) in parameters "UVxx" or "OVxx" This protection may be disabled
Undercurrent (Ex30) The motor current exceeds of limit set Check if settings are correct.
Overcurrent (Ex31) in parameters "UCxx" or "OCxx" This protection may be disabled
Retry (Ex32) The retry feature could not re-start the Check last message "e1xx" and correct.
motor after a fault Be sure that retry settings are correct as well