X20 system modules • Motor controllers • X20SM1426
1980
X20 system User's Manual 3.10
4.25.6.9 Output circuit diagram
LA
24 V - 39 V
HA
LA\
HA\
LB
HB
LB\
HB\
A
A\
B
B\
Current comparator A
Current comparator B
Motor
Controller
Motor
Controller
4.25.6.10 Overvoltage cutoff
The module supply voltage is continually monitored. Its status can be read. The error "Module power supply error"
occurs when the voltage is above or below the limits.
If the supply voltage on the module rises or falls outside the limit values (e.g. due to regeneration), then the motor
output is switched off. The outputs are reactivated as soon as the supply voltage is back in the valid range and
the error bit is reset.
Supply voltage limit values
Drive is switched off
Drive is switched back on
Lower limit
<17.5 V
>19.5 V
Upper limit
>30 V
<29.0 V
4.25.6.11 Overtemperature cutoff (at 85°C)
If the module temperature reaches or exceeds the limit value of 85°C, then the module executes the following
actions:
•
Setting the "overtemperature" error bit
•
The outputs are switched off (short-circuited)
As soon as the temperature sinks back down below 85°C, the error must be acknowledged with Overtempera-
tureAcknowledge so that the channels can be switched on again.
Summary of Contents for X20 System
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