GSK GSK980TDc, Руководство пользователя

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GSK980TDc Turning CNC System User Manual
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Ⅲ
Connection
Fig. 2-33 ESP signal circuit
z
Machine external connection
(1) The series connection between the emergency stop and travel switch is shown in Fig. 2-34A:
Fig.2-34A Series connection between emergency stop and travel switch
(2) The separate connection between the emergency stop and travel switch is shown in Fig.
2-34B:
Fig. 2-34B Separate connection between the emergency stop and travel switch
z Control logic
(1) Series connection between the emergency stop and travel switch
When the contact of the emergency stop switch is cut off, the ESP signal is off to +24V, and CNC
makes an emergency alarm. Meanwhile the CNC turns off the enable (EN) signal to stop the pulse
output. Except the functions processed by NC, other functions can also be defined by PLC program
when the emergency alarm is issued. The function defined by standard PLC program is: when
emergency alarm is issued, it turns off the signal output of M03, M04, M08, and outputs M05 signal at
the same time.
(2) Separate connection between the emergency stop and travel switch
1. Each axis has only one overtravel contact, and the system judges the overtravel alarm
based on the axis movement direction.
2. When the system alarms for the overtravel, the axis moves reversely, the reset key is
pressed to clear the alarm after the axis exceeds the limit position.
Note: Before the overtravel limit function is enabled, the slider must be between the positive and the negative
limit; otherwise, the prompted alarm will not be consistent with actual situation.