FFE-: Firmware does not match
Possible reason Solution
Operating panel may be placed to the frequency converter with older/
newer firmware
Contact with service
I/O board may be removed to another device Contact with service
PSr-: Problem with power supply on the main board
Possible reason Solution
10 V overload on I/O board Remove overload
EMC problem at customer I/O interface Remove the environmental interference or EMI
Internal problem
● Check the wiring of control circuit, main circuit and
grounding to find out the source of interference
● Contact with service
EEPr: EEPROM error on operating panel
Possible reason Solution
Control circuit power failure while write / read Parameter initialization
Error happens at normal power on, means problem with operating panel Replace operating panel
Panel firmware version does not match with that of the main board Contact with service
ESS-: Soft start error
Possible reason Solution
Soft start resistor value has been changed due to over temperature Contact with service
Power failure Check the input power supply
Input phase loss occurs during start-up (3 phase) Remove the input phase loss
Main circuit capacitor deterioration Contact with service
CE5-: Internal problem on main board
Possible reason Solution
Problem with CPU on main board Check the wiring, contact with service if it fails again
Bosch Rexroth AG
Diagnosis
EFC 3600
132/259
DOK-RCON03-EFC-3600***-IT03-EN-P
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