GE Industrial Solutions AF-600 FP High Power (460V_575V 150HP and above) - Manual (Page 49)

4.5.3 Motor Will not Run
In the event that this symptom is detected, first verify that the unit is properly powered up (display is lit) and that there are no warning or alarm messages displayed.
The most common cause of this is either incorrect control logic or an incorrectly programmed frequency converter. Such occurrences will result in one or more
of the following status messages being displayed.
Keypad Stop
The [OFF] key has been pressed. Line 2 of the display will also flash when this occurs.
Press the [AUTO] or [HAND] key.
Standby
This indicates that there is no start signal at terminal 18.
Ensure that a start command is present at terminal 18. Refer to the Input Terminal Signal Test (6.3.16).
Unit ready
Terminal 27 is low (no signal).
Ensure that terminal 27 is logic “1”. Refer to the Input Terminal Signal Test (6.3.16).
Run OK, 0 Hz
This indicates that a run command has been given to the frequency converter but the reference (speed command) is zero or missing.
Check the control wiring to ensure that the proper reference signal is present at the frequency converter input terminals and that the unit is properly programmed
to accept the signal provided. Refer to the Input Terminal Signal Test (6.3.16).
Off 1 (2 or 3)
This indicates that bit #1 (or #2, or #3) in the control word is logic “0”. This will only occur when the frequency converter is being controlled via the network.
A correct control word must be transmitted to the frequency converter over the communication bus to correct this.
STOP
One of the digital input terminals 18, 19, 27, 29, 32, or 33 (parameter E-0#) is programmed for Stop Inverse and the corresponding terminal is low (logic “0”).
Ensure that the above parameters are programmed correctly and that any digital input programmed for Stop Inverse is high (logic “1”).
Display Indication That the Unit is Functioning, but No Output
Make sure that par. is not set to Run With Inverter Disabled.
If the unit is equipped with an external 24 VDC option, check that main power is applied to the frequency converter.
Note: In this case, the display will alternately flash Warning 8.
AF-650 GP and AF-600 FP High Power Service Manual
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