2–18 Troubleshooting and Error Codes
Publication 1336 IMPACT-6.2 – March 1998
If you are having problems with the start up procedure, refer to this
table for possible solutions before calling for help.
Table 2.E
If:
Then:
You powered up your drive and
cannot access the start up routine.
The start up procedure is not supported on a Series A Human Interface
Module (HIM). To verify that you have a Series A HIM, check the series
letter located on the back side of the HIM or check the HIM version when
you first power up your drive.
You got a Feedback Loss Fault.
You have specified that an encoder is on the system but it has been
disconnected.
The motor does not turn during the
phase rotation test.
Remove the load from the motor and try running the autotune tests again.
Afterwards, you will need to attach the load again and run the inertia test
manually.
During the phase rotation test you
were asked to swap the encoder
leads. You changed the leads and
ran start up again. You were asked
to swap the leads again.
The drive is not getting any speed feedback information. You need to:
• Check the connection between the encoder and the motor.
• Run the phase rotation test again and escape out to the status display
at the first question. Check the motor speed. It should ramp to 3 Hz (90
rpm) for a 60 Hz 4 pole motor. If the motor speed is 0 rpm, you should:
• Check the encoder wiring.
• Check the encoder itself.
If you are having problems with how your 1336 IMPACT drive is
operating, refer to this table for possible solutions before calling for
help.
Table 2.F
If:
Then you should:
The drive starts and then stops.
• Check if the mode specified in L Option Mode (parameter 116) is 2 or 3 wire.
• Check SP 2 Wire Enable (parameter 181).
• Check to see if the HIM displays a fault message.
• Check the L Option Board wiring.
• Check the settings on your gateway (communications module).
There is a delay before the stop
command takes effect.
• Check the value of Stop Dwell Time (parameter 18).
The motor waits before starting.
• Check Start Dwell Time (parameter 194).
• Check Pos Torque Lim (parameter 74) and Neg Torque Lim (parameter 75).
• Check Fast Flux Level (parameter 78) and bit 8 of Bus/Brake Opts (parameter 13).
• Check S-Curve Percent (parameter 47).
The drive coasts on stop.
• Check the stop type bits in Logic Options (parameter 17).
• Check Zero Speed Tol (parameter 19).
You cannot clear faults.
• Check if the port is enabled in SP Enable Mask (parameter 124).
• Check if clear faults is enabled in Clr Flt/Res Mask (parameter 127).
• Check if clear fault owners in Ramp/ClFlt Owner (parameter 131) is set. If set, check
stop owners in Start/Stop Owner (parameter 129) and remove stop conditions.
• The fault is a hard fault which requires a power cycle or drive reset.
The motor does not turn or run
at the correct speed.
• Check which speed reference the drive is following in Drive/Inv Status (parameter
15) bits 13 – 15.
• Check if Spd/Trq Mode Sel (parameter 68) is set correctly.
• Check if Spd Desired BW (parameter 161) is non-zero.
• Set the drive defaults and run start up again to tune the drive.
Start Up Troubleshooting
Procedures
Miscellaneous
Troubleshooting
Procedures
AB Spares
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