上海维宏电子科技股份有限公司
Weihong Electronic Technology Co., Ltd.
Specialized, Concentrated, Focused - 17 -
COM
OUTX
+5V
Optical Coupler
5 to 12VDC
Fig. 2-7 Connection of binary output and optical coupler
Note:
The max. allowable voltage of optical coupling open collector output is: 30VDC, with max. allowable current 50mA.
2.1.4
Analog Output
Externally connected to the Analog voltage frequency command input of the inverter, SCV refers to
controllable voltage output ranging from 0V to 10V. The inverter frequency changes along with the
voltage, thus controlling the spindle rotating speed.
2.2
Wiring Specification of Terminal Board
EX9A4 is the terminal board for NK280 standard 4-axis system while EX24A2 for dual Z system,
system for key cutting machine and system for knife grinder machine. Another option is EX26A3, used
for I/O ports expansion. Except for one piece of EX9A4/EX24A2, up to four pieces of terminal board
EX26A3 can be connected for expanding I/Os by 40/32.
There is a red LED indicator light next to each input port on terminal board, used for indicating
whether port wiring is correct in machine tool debugging. The concrete method is: press the switch to
give the corresponding port signal. If the LED indicator light next to this port is on, the wiring is right; if not,
check whether the wiring is wrong.
To check whether the port is damaged, open the software and test. For details, refer to chapter 3.5
Port Polarity Adjustment.
