E411 Double Sst Failure; E825 Overvoltage In Power Stage - Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS Functional Description

With integrated nc control
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12-30
Diagnostic Message Descriptions

E411 Double SST Failure

E825 Overvoltage in power stage

The EcoX master cyclically sends the synchronization and command
value telegram (SST). If it fails for 2 cycles, warning E411 is generated.
The cycle time for the SST is 500 µs. If controller enable has been set
and the SST fails for 2 cycles, error F411 is generated instead of warning
E411.
Cause:
1. The EcoX master has been switched to phase 2
2. The EcoX bus has not been correctly wired
3. The EcoX bus is disturbed
4. The EcoX bus has not been parameterized in the EcoX master
5. The supply voltage of the EcoX master has been cut off
Remedy for...:
1. Switch EcoX master to phase 3 or phase 4
2. Check the wiring of the EcoX bus
3. Check the EcoX bus
4. Check parameterization
5. Check supply voltage of the EcoX master
The DC bus voltage is too high.
Cause:
1. During braking (decelerating): The regenerative energy received from
the machine mechanism via the motor was briefly so high that the
bleeder resistor was unable to convert enough of it to heat. The
regenerative current could not be bled off and therefore charged the
DC bus, causing the voltage on the bus to get too high.
2. The supply voltage (AC voltage input) is too high.
Result:
If an overvoltage is present, the motor is switched to a torque-free state.
Once the DC bus voltage again drops below the maximum allowable
value, the controller will again be switched on.
Remedy:
For 1. Reduce the acceleration values. Check the drive rating if
necessary.
Install an additional bleeder if necessary.
For 2. Check the supply voltage (AC voltage/3phase).
Danger! High voltage!
Protect against accidental contact.
WARNING
ECODRIVE03-FL*-04VRS
DOK-ECODR3-FL*-04VRS**-FK01-EN-P

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