12.2 Warning Diagnostics For Amplifier E; E221 Warning, Motor Temp. Surveillance Defective; E225 Motor Overload - Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS Functional Description

ECODRIVE03-FL*-04VRS

12.2 Warning Diagnostics for Amplifier E. ..

E221 Warning, Motor temp. surveillance defective

E225 Motor overload

DOK-ECODR3-FL*-04VRS**-FK01-EN-P
The temperature monitoring system checks to see if the measured motor
temperature is within reasonable bounds. If it finds that the temperature is
lower than -10°C, then it is assumed that the measuring unit is defective.
The warning message E221 Warning, Motor temp. surveillance
defective will appear for 30 seconds. Afterwards the drive is brought to a
standstill according to the selected error response and message F221
Error, motor temp. surveillance defective will be generated.
Cause:
1. Motor temperature sensor not connected.
2. Broken cable.
3. Defective sensor.
4. Broken cable in drive controller.
Remedy:
For 1. Connect the sensor to the drive controller and to the motor (see
project planning specifications for the motor).
For 2. Replace the lead between the drive controller and the motor.
For 3. Replace the motor.
For 4. Replace the drive controller.
The maximum possible motor current is reduced in order to prevent
damage to the motor.
If the current flowing in the motor is more than 2.2 times the Motor stall
current, Parameter CM02, the maximum possible motor current (Motor
peak current, Parameter CM02) is reduced. The reduction begins after
400 ms at 4 times the motor current at standstill. At 5 times the current, it
begins earlier; at 3 times the current, later.
If the limitation causes the motor peak current to be reduced, the E225
Motor overload warning is issued.
Diagnostic Message Descriptions
12-23