4.8 Over travel protection
57
4.8
Over travel protection
Over-range protection function refers to the safety function that the motor is forced to stop
when the moving part of the machine exceeds the designed safe moving range and the limit
switch moves. Schematic diagram of over-range protection is as follows:
Limit switches are recommended to use normally closed contacts, in the safe range is
closed, over-range is disconnected. Connect to Forward Drive Prohibit (CCWL) and Reverse
Drive Prohibit (CWL), which can also be set to use or ignore via the parameter P097. Set to use,
must access limit signal; Set to Ignore, the signal is not needed. The default value of the
parameter is that both CCWL and CWL are ignored. If it is needed, the parameter P097 must be
modified. Even in the overrun state, it is allowed to exit the overrun state by entering a reverse
instruction.
P097
Reverse drive inhibit
(CWL)
Forward drive inhibit
(CCWL)
0 Use Use
1 Use Neglect
2 Neglect Use
3(Default) Neglect Neglect
4.9
Torque limit
For the purpose of protecting machinery, the output torque can be limited.
4.9.1
Torque limit parameters
Torque limit related parameters are:
Para
meter
Name Range
Default
value
Unit Usage
P065 Internal forward (CCW) torque limit 0～300 300 % ALL
P066 Internal reversal (CW) torque limit -300～0 -300 % ALL
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