Operating instructions

IMM AGSB-60 43
CODE CRITICAL DESCRIPTION
F1 YES Line phase sequence not ABC
F3 YES System power is not three phase
F5 Line frequency less than 25hz.
F6 Line frequency greater than 72hz.
F23 Line current unbalance greater than set level.
F24 Line currents are very unbalanced.
F29 YES Operating parameters have been lost
F30 YES 3-phase default operating parameters have been loaded
F31 1- phase default operating parameters have been loaded (N/A)
F52 Current flow is present while starter is in stopped state.
F54 Undercurrent trip
F55 Overcurrent trip
F70 Control power is low
F71 YES CT burden switch changed while running.
F73 YES Bypass fault
F74 Motor stall time elapsed before motor reached full speed.
F75 External Fault occurred. Thermistor/Motor Saver/Stack over
temperature/Bypass (Power removed from input).
F77 YES Control card fault
F78 YES Control card fault
F90 YES Full-load amp(P1), CT ratio, or CT Burden Switch set
incorrectly.
F91 YES RLA not correct
F92 YES Shorted SCR or excessively high current imbalance.
F97 YES Control card fault
F98 Lost main power
F99 YES Excessively high load current.
Starter Preventative Maintenance
During commissioning:
• Torque all power connections during commissioning. This includes factory wired
components.
• Check all of the control wiring in the package for loose connections.
During the first month after the starter has been put in operation:
• Re-torque all power connections every two weeks. This includes factory-wired
components.
• Inspect cooling fans (if applicable) after two weeks for proper operation.
After the first month of operation:
• Re-torque all power connections every year.
• Clean any accumulated dust from the starter using a clean source of compressed air.
• Inspect the cooling fans every three months for proper operation.
• Clean or replace any air vent filters on the starter every three months.
NOTE: If mechanical vibrations are present at the installation site, inspect the
connections more frequently.