GSK GSK980TDc, Руководство пользователя

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GSK980TDc Turning CNC System User Manual
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Ⅲ
Connection
Fig. 2-41-a
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. 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.
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 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.
So the sequence of machine zero return mode C is shown as follows:
R e v e r s e l y
D e c e
l e r a t
e s
t o s t
o p
T i m e
(
t )
R e t u r n
f i n i s h
L o w r e t u r n
s p e e d
H i g h r e t u r n
s p e e d
V e l o c i t y
(
v
)
n P C
Z e r o r e t u r n s p e e d
Deceleration switch
Fig. 2-41-b