F220 Bleeder Overload Shutdown; F221 Motor Temp. Surveillance Defective; F226 Undervoltage In Power Section - Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS Functional Description

12-6
Diagnostic Message Descriptions

F220 Bleeder overload shutdown

F221 Motor temp. surveillance defective

F226 Undervoltage in power section

The regenerative energy coming from the machine mechanism via the
motor has overloaded the braking resistor (bleeder). When the maximum
braking energy is exceeded, the drive shuts down after braking. The
bleeder is thus protected against destruction due to overheating.
Cause:
The regenerative energy coming from the machine mechanism via the
motor is too great.
Remedy:
If demand is too great Å reduce the acceleration values.
If too much power is supplied
Check the drive rating.
Install additional bleeder module if necessary.
Cause:
Wire break or improper connection in motor temperature monitoring line.
Remedy:
Check motor temperature monitoring line (signals MT(emp)+ and
MT(emp)-) for breaks/interruptions and short circuits.
See also functional description for: "Temperature Monitoring."
The level of the DC bus voltage is monitored by the drive controller. If the
DC bus voltage falls below a minimal threshold, the drive independently
shuts down according to the set error response.
Cause:
1. Power is turned off without first deactivating the drive using the
drive enable (RF) signal.
2. Disturbance in the power supply
Remedy:
For 1. Check the drive activation logic in the connected controller.
For 2. Check the power supply.
The error disappears in the DKC03 when the drive enable signal is
cleared.
ECODRIVE03-FL*-04VRS
Å reduce the velocity.
DOK-ECODR3-FL*-04VRS**-FK01-EN-P