GSK 980MDc, User Manual

Page: 374 / 473

Chapter 4 Machine Debugging
355
Ⅲ
Inst
allation
CHAPTER 4 MACHINE DEBUGGING
The trial run methods and steps at initial power on for this GSK980MDc are described in this chapter.
The corresponding operation can be performed after the debugging by the following steps.
4.1 Emergency Stop and Stroke Limit
This GSK980MDc system has software limit function, it is suggested that the stroke limit switches are
fixed in the positive or negative axes for hardware limit. The connection is shown in follows:
（
The chart is
designed for X, Y, Z axes
）
Fig. 4-1
So the MESP of bit parameter No.172 should be set to 0.
And the CNC diagnostic message ESP can monitor the state of emergency stop input signal.
In Manual or MPG mode, slowly move the axes to test the validity of stroke limit
switch, correctness of alarm display, validity of overtravel release button. When the overtravel
occurs or Emergency Stop button is pressed, “emergency stop” alarm will be issued by CNC system.
The alarm can be cancelled by pressing down the Overtravel button and moving reversely.
4.2 Drive Unit Setting
Set BIT4
～
BIT0 of bit parameter No.009 according to alarm logic level of drive unit. The BIT4
～
BIT0 of bit parameter No.009 for our drive unit are all set for 1 .
If the machine moving direction is not consistent with the moving command, modify the BIT4
～
BIT0
of bit parameter No.008
，
BIT4
～
BIT0 of bit parameter No.175, BIT4
～
BIT0 of bit parameter No.174.
4.3 Gear Ratio Adjustment
4.3.1 Servo Feed Axis
The data parameter № 015
～
№ 016 can be modified for electronic gear ratio adjustment to meet the
different mechanical transmission ratio if the machine travel distance is not consistent with the displacement
distance displayed by CNC coordinate.
Calculation formula of CNC:
D
M
Z
Z
L
CMD
CMR
×
×
=
360
α
δ
CMR
CMD
Z
Z
L
D
M
× ×
×
=
360
δ
α
CMR: command multiplier coefficient (data parameter № 15)
CMD: command frequency division coefficient (data parameter № 16)