Lenze E931Ex - Manual (Page 39)

Troubleshooting and fault elimination
Error message
7
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39 GHB 13.0001−EN EN 3.0
7.2 Error message
Various monitoring functions protect the drive against impermissible operating
conditions. If a monitoring function is activated, a response corresponding to the
protection of the drive is actuated. The following things are monitored:
ƒ Temperature of the output stage
ƒ Motor temperature
ƒ I2t monitoring of the motor
ƒ Overcurrent / short circuit of the output stage
ƒ DC−bus voltage (under− and overvoltage)
ƒ Following error with regard to position control
ƒ Error with regard to the reference run
ƒ Error with regard to the angle encoder system
ƒ Communication error
ƒ Initialisation error
ƒ Check sum error of the parameters
Some responses to failures can be set within the SDC parameterisation software. Possible
responses are:
Reaction Meaning Reaction of the drive
A Immediate disconnection of the
output stage The motor coasts.
h Emergency stop The motor is braked to zero speed at the current limit. If there
is a motor holding brake, it is applied. The output stage
switches off.
W Warning The controller keeps operating, the output stage remains
switched on. The warning signal can be read out via the CAN
bus or via the serial RS232 interface.
O Off The warning signal is inhibited − no response.
Used symbols:
Symbol Meaning
þ Default setting
¨ Response parameterisable in SDC
− Selection not possible