Mannesmann Rexroth DDS 2.1, Руководство по применению

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• DOK-DIAX02-DDS02.1*ANA-ANW1-EN-E1,44 • 12.96
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The prerequisites for fault diagnosis using the DDS 2.1 drive controller are:
– Mains power is switched on.
The fault message must be reset once the associated fault has been
cleared. To reset fault messages, press the reset button S1 (see Fig. 15).
The controller will only be ready again when the error message has been
reset.
"Watchdog"
The drive controller’s processor is inoperative.
Cause:
1. Software module not installed or defective.
2. Processor defective.
Remedy:
1. Install or change the software module.
2. Replace the drive controller
"Amplifier overtemperature shutdown"
Overtemperature was detected in the power output stage of the DDS 2.1
drive controller. The controller then emitted a 30 second warning: 50
"Amplifier overtemperature warning", and shut itself down according to
the selected error reaction, while signalling the above error message.
Cause:
1. Failure of the unit’s internal cooling system.
2. Failure of the cabinet air conditioning.
3. Incorrectly dimensioned heat dissipation of the cabinet air conditioning
Remedy:
1. If the cooling system is defective, change the controller.
2. Restore the cabinet air conditioning function.
3. Check the cabinet dimensioning.
"Motor overtemperature shutdown"
The motor temperature has risen above the permissible level. The drive
controller then emitted a 30-second warning: 51 "Motor overtemperature
warning". This is done by outputting 24 V DC via the "TVW" output. The
drive then shuts down according to the selected error reaction and
signals the above error message (see selection options for error reac-
tions, Section 7.1 "Error reaction").
Cause:
1. The motor has been overloaded. The effective torque demanded from
the motor was above the permissible nominal torque for too long.
2. Earthing or short-circuit in the conductor for motor temperature
monitoring.
Remedy:
1. Check the motor dimensioning. For plants which have been in
operation for some time, check whether the drive conditions have
changed (e.g. contamination, friction, moved masses, etc.).
2. Check the motor temperature monitoring conductor for earth leakage
or short-circuit.
9. Diagnostics and fault clearance
9.3. Fault diagnostics and
clearance using the drive
controller status display