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(2) Loosen the terminal screw and insert the cable into the terminal.
Screw size
Tightening torque
M2
0.22 N⋅m to 0.25 N⋅m
NOTE
• Under-tightening may cause cable disconnection or malfunction. Over-tightening can cause a short circuit or
malfunction due to damage to the screw or option unit.
• When wiring the RS-485 terminals on the inverter with the plug-in options installed, be careful not to let RS-485 cables
touch the option circuit boards and the inverter circuit board. This is to prevent a malfunction due to electromagnetic
noises.
CAUTION
After wiring, do not leave wire offcuts in the inverter. Doing so may cause a fault, failure or malfunction.
2.4
Terminals
Terminal symbol
DT+
Communication data signal (DATA)
DT-
Communication data inversion signal (DATA)
CK+
Clock signal (CLOCK)
CK-
Clock inversion signal (CLOCK)
UN
Common terminal
∗1
TST1 to TST6, and UP
Terminals for manufacturer setting. Keep them open.
∗1
When using terminal UN, use the upper one.
12
INSTALLATION AND WIRING
Wire gauge
2
2
0.3 mm
to 0.75 mm
Terminal name
Screwdriver
Small
flat-blade screwdriver
(Tip thickness: 0.4 mm/tip width: 2.5 mm)
Description
Terminal for serial communication data of the SSI device.
Terminal for clock data output to the SSI device.
Connected when the SSI communication device has a common
terminal.
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