GSK 980TDi, Руководство пользователя

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GSK980TDi Turning CNC System User Manual
396
Ⅲ
Connection
Fig. 2-34
Sequence of machine zero return
③
When the BIT0 (ZMX) of the bit parameter No.006 is set to 0, and the BIT5(DECI) of the bit
parameter No.004 is set to 0, the system chooses the machine zero return mode B, and the
deceleration signal low level is active.
So the sequence of machine zero return mode B is shown as follows:
Fig. 2-35
Return process of machine zero mode B
A: Select Machine zero mode, press the manual positive or negative feed key (machine
zero return direction set by bit parameter No.183), the corresponding axis moves to the
machine zero by a rapid traverse speed (No.113). As the axis press down the
deceleration switch to cut off deceleration signal, the feeding slows down immediately,
and it continues to run in a fixed low speed (No.33).
B: When the deceleration switch is released, the deceleration signal contact is closed again.
And CNC begins to detect the encoder one-turn signal (PC), if this signal level skips, the
motion will be halted. And the corresponding zero return indicator on the operator panel
lights up for machine zero return completion.
When the BIT0 (ZMX) of the bit parameter and No.006 are both set to 1, and the BIT5 (DECI) of
the bit parameter No.004 is set to 0, it chooses the machine zero return mode C, and the deceleration
signal low level is active. The Bit 1 of status parameter No.011 can be set the deceleration time.
So the sequence of machine zero return mode C is shown as follows: