User`s manual

apfiff09 marine vacon • 255

24-

F61 Speed Error

Speed error monitoring function compares the encoder frequency and the ramp generator output.

This function is used with PMS motors to detect if the motor is out of synchronization or to disable

open loop function that uses encoder speed for slip compensation. The slip compensation is disabled

regardless of the response and needs to be re-activated once speed error is detected (set parameter

again or power down the drive).

Possible cause:

1. Motor speed is not the same as the reference. For example, motor speed is limited by

torque limit.

2. PMS motor has gone off synchronization.

3. Encoder cable is broken.

F62 Run Disabled

Run Disable warning signal is issued when Run Enable signal has been removed from the IO.

F63 Emergency stop (Not implemented)

Possible cause:

1. A command has been given from a digital input or the fieldbus to make an emergency stop.

Correcting measures:

 New run command is accepted after the emergency stop is reset.

F64 Input switch open (Not implemented)

Possible cause:

1. Drive input switch is opened

Correcting measures:

 Check the main power switch of the drive.

F65 Temperature sensor board 2 fault

Temperature protection function is used to measure temperature and give warning and/or fault

when set limits are exceeded. Marine application supports two temperature sensor boards

simultaneusly. One can be used for the motor winding and the other for the motor bearings.

A1 Temperature limit has been exceeded.

A2 Sensor not wired or not working.

A3 Short circuit.

Possible cause:

2. Temperature limit values set for the temperature board parameters have been exceeded

Correcting measures:

 Find the cause of temperature rise

 Check sensor wiring