Instruction manual

9
Control circuit specifications
3.3 Control circuit specifications
(1) Standard control circuit terminal layout
(2) Wiring method
1) Strip off the sheath of the cable of the control circuit to wire.
Strip off the sheath about the size below. If the length of the sheath peeled is too long, a short circuit may occur among
neighboring wires. If the length is too short, wires might come off.
2) Loosen the terminal screw and insert the cable into the terminal.
3) Tighten the screw to the specified torque.
Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or malfunction
due to damage to the screw or unit.
Tightening torque: 0.5N·m to 0.6N·m (terminal A, B, C)
0.22N·m to 0.25N·m (other than the above)
* Screwdriver: Small flathead screwdriver (Tip thickness: 0.4mm/tip width: 2.5mm)
(3) Wiring instructions
1) Terminals SD, SE and 5 are common to the I/O signals. Do not earth them.
2) Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and power
circuits (including the 200V relay sequence circuit).
3) Use two or more parallel micro-signal contacts or twin contacts to prevent
contact faults when using contact inputs since the control circuit input signals
are micro-currents.
4) Do not apply a voltage to the contact input terminals (e.g. STF) of the control
circuit.
5) Always apply a voltage to the fault output terminals (A, B, C) via a relay coil, lamp, etc.
6) It is recommended to use the cables of 0.3mm
2
to 0.75mm
2
gauge for connection to the control circuit terminals.
If the cable gauge used is 1.25mm
2
or more, the front cover may be lifted when there are many cables running or the
cables are run improperly, resulting in an operation panel contact fault.
7) The maximum wiring length should be 30m(98.43feet).
Terminal screw size
M3: (Terminal A, B, C)
M2: (Other than the above)
Wire the stripped cable after twisting it to prevent it from
becoming loose. In addition, do not solder it.
Use a bar terminal as necessary.
L(mm(inches))
Terminal A, B, C 6 (0.24)
Other than the above 5 (0.2)
SDSD STF STR PCSD RESMRS RHRMRL
AM
CBA
10 2 5 4 RUN FU SE
Cable stripping size
L
Micro signal contacts Twin contacts
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