ROBOT3T THC3T-02 - Operations and Principle; Principle of Operation

ROBOT3T- 3C MACHINERY CO., LTD
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USER MANUAL THC3T-02 UP/DOWN Page 13 | 21
7
SW1
STEP/DIR or
UP/DOWN
MODE
Compact THC
SW1
SW2
STEP/DIR
OFF
OFF
UP/DOWN
ON
ON
4. THC3T-02 operations
4.1 Principle operating
Fig11. Principle operating of THC3T-02 up/down
ARC-OK: output signal is activated when the arc voltage (P) is higher than area for
control (A-) and the delay time (d) is finished. Configure for a software input.
UP: output signal is activated when the arc voltage (P) is lower than the steady–state
error (v-) and higher than area for control (A-). Configure for a software input.
DOWN: output signal is activated when the arc voltage (P) is higher than the steady–
state error (v+) and lower than area for control (A+). Configure for a software input.
Note: Both UP/DOWN outputs are activated when ARC-OK signal is activated