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GSK980TDi Turning CNC System User Manual
398
Ⅲ
Connection
Fig. 2-39
Circuit of the deceleration signal
②
Fig. 2-40
Sequence of machine zero return (taking example of X)
③
When the BIT0 (ZMX) of the bit parameter No.006 are all set to 0, and the BIT5 (DECI) of the bit
parameter No.004 is 0, it chooses the machine zero return mode B.
The sequence of machine zero return is as follows:
Fig. 2-41
B type machine zero return process
A: Select the Machine Zero mode, press manual positive or negative (zero return direction set
by bit parameter No.183) feed key, the corresponding axis will move to the zero at a high
speed(set by parameter No.113).
B: As the proximity switch touches the tongue for the first time, the deceleration signal is active
and speed immediately slows down and it runs in a fixed low speed (set by parameter
No.33 ).
C: As the proximity switch detaches the tongue, the deceleration signal is inactive; it moves at a
fixed low speed after deceleration and starts to detect zero signal (PC).
+24V
*DECn
nPC
nDEC
Machine side
CNC side
