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8.8.3 HR 420 portable handwheel
Settings
July 2013
Enter MP7640 = 11 (HR 420)
In MP7641, specify whether you are using an HR 420 with or without
detent, and whether the keys on the handwheel are to be evaluated by the
NC or PLC.
Information about MP7641:
Bit 2
• Bit 2 = 0: If the HR 420 assumes control, then W1046/W1144 (Manual
traverse in positive direction), W1048/W1148 (Manual traverse in
negative direction), W1050/W1152 (Incremental jog positioning in
positive direction), W1052/W1156 (Incremental jog positioning in
negative direction) and M4561 (Rapid traverse) have no effect. Only the
keys on the HR 420 are valid.
• Bit 2 = 1: The direction keys and the rapid-traverse key of the HR 420
must be evaluated by the PLC. For safety reasons, once the HR 420 has
assumed control, only the keys of the HR 420 (M4660) should be active.
Bit 3
• Bit 3 = 0: M4564 (NC start) has no effect once the HR 420 assumes
control. Only the NC start from the HR 420 is valid. An NC stop is
performed via the corresponding key on the HR420 or via M4560 (NC
stop).
• Bit 3 = 1: The NC start and NC stop keys of the HR 420 must be
evaluated by the PLC. For safety reasons, NC start should only be
activatable from the HR 420 once it has assumed control (M4660).
Spindle start and spindle stop must always be conducted by the PLC.
8.8 Electronic handwheel
1513
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