Mitsubishi Electric FR-E700 Installation Manuallines page 12

WIRING
3.4 Control circuit specification
3.4.1 Standard control circuit terminal layout
Terminal screw size
M3: (Terminal A, B, C)
M2: (Other than the above)
3.4.2 Wiring method
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 pealed is too long, a short circuit may occur among
neighboring wires. If the length is too short, wires might come off.
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
Loosen the terminal screw and insert the cable into the terminal.
L[mm]
Terminal A, B, C 6
Other than the above 5
Flat blade screw driver
Srew driver
Tip thickness: 0,4mm × 2,5mm
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.
3.4.3 Wiring instructions
Terminals PC, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Avoid
connecting the terminal PC and 5 and the terminal SE and 5 (ground). Terminal PC is a common terminal for the contact
input terminals (STF, STR, RH, RM, RL, MRS, RES).
Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and
power circuits (including the 230V relay sequence circuit).
Use two or more parallel micro-signal contacts or twin
contacts to prevent a contact faults when using contact
inputs since the control circuit input signals are micro-
currents.
Do not apply a voltage to the contact input terminals (e.g. STF) of the control circuit.
Always apply a voltage to the alarm output terminals (A, B, C) via a relay coil, lamp, etc.
It is recommended to use the cables of 0.3mm² to 0.75mm² gauge for connection to the control circuit terminals.
If the cable gauge used is 1.25mm² 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.
The wiring length should be 30m maximum.
The level of the control signals can be switched over between positive (SOURCE) and negative (SINK) logic. The input
signals are set to source logic when shipped from the factory. To change the control logic, the jumper connector above
the control circuit terminal block must bemoved to the other position.
8
AM
Tightening torque[Nm]
0.5–0.6
0.22–0.25
Micro signal contacts Twin contacts