Festo CMMS-ST-C8-7-G2 Manual Del Usario página 24

When a fault occurs, the CMMS−ST displays an error
message cyclically in the seven segment display.
The meanings and the measures for the error messages
are summarised in the table below.
Index
Main index Subindex
01 x
02 x
03 x
04 x
05 x
06 x
07 x
24
Error message
Stack overflow
Undervoltage at
intermediate circuit
Motor temperature
monitoring
Power section tem
perature monitoring
Internal power supply Fault cannot be recti
Output stage short
circuit
Overvoltage in the
intermediate circuit
Festo P.BE−K−CMMS−ST−G2 1008NH English
Cause/measures
Reload firmware
Measure intermedi
ate circuit voltage
Measure the motor
temperature, check
connections
Check operating
conditions, check
the application.
fied independently.
Output stage, motor
cable or motor defec
tive
Check the braking
resistor and applica
tion.