REXROTH DIAX04, Troubleshooting Manual

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DIAX04 ELS-06VRS Description of Diagnostic Letters F... and E...
4-37
DOK-DIAX04-ELS-06VRS**-WA01-EN-P
warning E410 . Communication with these slaves in higher
communications phases is not possible. They work only in pass through
mode (i.e. they do not have an AT of their own, rather they serve only as a
pass through for the SERCOS communication).
Cause:
•
The slave was not scanned in phase 1, or address 0 is set.
•
The slave is deactivated by the controller.
Remedy:
•
Set the correct slave address.
•
Check the SERCOS master configuration.
See also the functional description: "Adjustments of the SERCOS
Interface"
E825 Overvoltage in power stage
The DC bus voltage is too high.
Cause:
1. During braking (decelerating): the energy regenerated from the
mechanical system via the motor was so high for a moment that it
could not be sufficiently dissipated to heat by the bleeder resistor. The
regenerated current could not be dissipated and therefore charged the
DC bus, so that the voltage has become too high.
2. The mains voltage (AC input) is too high.
Result:
In case of overvoltage, the motor is switched to torque-free operation. As
soon as the DC Bus voltage falls again below the maximum allowable
value, the controller will be turned on again.
Remedy:
For 1. Reduce the acceleration values.
Check the drive controller layout, if necessary.
Install an auxiliary bleeder, if necessary.
For 2. Check the mains supply voltage (AC/3phase).
WARNING
⇒
Danger of high-voltage shock!
Care for protection against accidental touch.
E826 Undervoltage in power section
If the bit 3 is set in the parameter P-0-0118, Power off on error , the
undervoltage is treated as "fatal warning“ with shutdown of the drive
operation. If the drive enable is on at the same time, and the DC bus
voltage indication goes down, the drive displays this warning.
Cause:
Switching off the power supply or a loss of mains while the drive enable is
on.
Remedy:
Switch off the drive enable before switching off the supply unit.