GSK GSK928TE, Руководство пользователя

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GSK928TE
Ⅱ
Turning CNC System User Manual
46
M79
M78
input
signal
M79
M78
input
signal
the system prompts “Spindle Ready Failure” to stop executing the next block; when
executing M3 or M4 in the state of chuck releasing, the system prompts: “Chuck Ready
Failure” to stop executing the next block.
4.4.19 Hydraulic Tailstock Control Function
When P25 Bit0 is 1, the system has the hydraulic tailstock control function. The output signal
mode of tailstock is defined by P25 Bit2 (level or pulse mode) when the hydraulic tailstock
control is valid. The hydraulic chuck control and the spindle control have a relationship of
interlock.
Bit4=0: the hydraulic tailstock control signal is employed with the level control;
Bit4=1: the hydraulic tailstock control signal is employed with the pulse control; the pulse width is
defined by the time of P15.
After M78 is executed, the system outputs the tailstock forward signal from X 7.5(the output
pulse or level signal is selected by the parameter), the tailstock forward operation ends; when
executing M78 in the course of the spindle rotating, the system prompts “
Spindle Ready Failure ”
After M79 is executed, the system outputs the tailstock backward signal from X 7.16(the output
pulse or the level signal is selected by the parameter), the tailstock backward operation ends;
when executing M79 in the course of the spindle rotating, the system prompts “
Spindle Ready
Failure ”.
Besides the commands, other ways are employed to control the hydraulic tailstock, including the
pedal switch. The system will switch the forward/backward by M78/M79 when the pedal switch is
stepped once.
Time sequence of pulse control mode Time sequence of level control mode
Note 1:
When the hydraulic tailstock control is valid, the previous user input M21/M22/M23/M24
is invalid; when the hydraulic tailstock function is invalid, the output point is still used for
the general one and the input point is used for the in-position signal input.
Note 2:
When the hydraulic tailstock function is valid, the system defaults the state of the
tailstock retracting after power on. The system outputs the forward signal of tailstock
when the first chuck control input is valid.
Note 3:
The operation of tailstock is invalid when the spindle is rotating.
Note 4:
In the course of automatically continuous machining, the tailstock control input is invalid
whether the spindle rotates or not. When executing M78/M79 in the course of spindle
rotating, the system prompts: “Spindle Ready Failure” to stop executing the next block.