Danfoss VLT DriveMotor FCP 106 Programming Manual page 128

Diagnostics and Troubleshoo...
ALARM 101, Flow/pressure info missing
Sensorless-pump table is missing or wrong.
Troubleshooting
•
Download sensorless-pump table again.
ALARM 126, Motor rotating
High back EMF voltage. This alarm occurs only when
running AMA on a PM motor.
Troubleshooting
•
Stop the rotor of the PM motor.
WARNING 127, Back EMF too high
5 5
This warning applies to PM motors only. When the back
EMF exceeds 90% x U
does not drop to normal level within 5 s, this warning is
reported. The warning remains until the back EMF returns
to a normal level.
WARNING 200, Fire mode
The frequency converter is operating in fire mode. The
warning clears when fire mode is removed. Refer to the
fire mode data in the alarm log.
WARNING 202, Fire mode limits exceeded
While operating in fire mode, 1 or more alarm conditions
that would normally trip the unit have been ignored.
Operating in this condition voids unit warranty. Cycle
power to the unit to remove the warning. Refer to the fire
mode data in the alarm log.
126
®
VLT DriveMotor FCP 106/FCM 106
(overvoltage threshold), and
invmax
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