GSK GSK980TDc, Руководство пользователя

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Chapter 4 Machine Debugging methods and Modes
415
Ⅲ
Connection
Y, 4
th
, 5
th
axis machine zero return mode B or C selection.
BIT0, BIT1, BIT2, BIT3, BIT4 (ZCX, ZCZ, ZCY, ZC4, ZC5) of the bit parameter No.007: whether a
proximity switch is taken as both deceleration and zero signals.
BIT2(ZNLK) of the bit parameter No.011: whether the direction key in zero return is self-locked.
BIT0, BIT1, BIT2, BIT3, BIT4(ZRSCX, ZRSCZ, ZRSCY, ZRSC4, ZRSC5) of the bit parameter
No.014: have/not the machine zero(zero turn mode BC/A)setting bit.
Data parameter No.033: low deceleration speeds of each axis in machine zero return.
Data parameter No.113: high speed of each axis in machine zero return.
BIT0, BIT1, BIT2, BIT3, BIT4(MZRX, MZRZ, MZRY, MZR4, MZR5) of the bit parameter No.183:
each axis zero return direction: negative or positive.
Only the stroke limit switch validity is confirmed, can the machine zero return be performed.
The machine zero is usually fixed at the max. travel point, and the effective stroke of the zero
return touch block should be more than 25mm to ensure a sufficient deceleration distance for
accurate zero return. The more rapid the machine zero return is, the longer the zero return touch
block should be. Or the moving carriage will rush over the block and it may affect the zero return
precision because of the insufficient deceleration distance.
Usually there are 2 types of machine zero return connection:
① The connection to AC servo motor: using a travel switch and servo motor one-turn signal
separately
Fig. 4-2
By this connection, when the deceleration switch is released in machine zero return, the one-turn
signal of encoder should be avoided to be at a critical point after the travel switch is released. In order
to improve the zero return precision, and it should ensure the motor reaches the one-turn signal of
encoder after it rotates half circle.
The parameter setting is as follows:
Bit parameter No.004 BIT5(DECI) =0
Bit parameter No.006 BIT0(ZMX) , BIT1(ZMZ) , BIT2(ZMY), BIT3(ZM4), BIT4(ZM5) =0
Bit parameter No.007 BIT0(ZCX) , BIT1(ZCZ) , BIT2(ZCY) , BIT3(ZC4), BIT4(ZC5)=0
Bit parameter No.011 BIT2(ZNLK) =1
Bit parameter No.014 BIT0(ZRSCX) , BIT1(ZRSCZ) , BIT2(ZRSCY), BIT3(ZRSC4),
BIT4(ZRSC5) =1
Data parameter No.033=200
Data parameter No.183 BIT0(MZRX) , BIT1(MZRZ) , BIT2(MZRY), BIT3(MZR4) , BIT4(MZR5)
=0
②
The connection to stepper motor: schematic diagram of using a proximity switch taken as
both deceleration signal and zero signal