2-13
(*1) Install a recommended molded case circuit breaker (MCCB) or residual-current-operated protective device
(RCD)/earth leakage circuit breaker (ELCB) (with over current protection function) in the primary circuit of
the inverter to protect wiring.
(*2) Refer to table 2.4.
(*3) Mount a jumper cable between terminals P2 and P3 when a DCR is not used. The direct current reactor
(DCR) is a separately installed option.
Be sure to use a DC reactor for FRN0025LM2C-4 and
FRN0032LM2C-4.
(*4) Use the inverter connecting the power system which has earthed neutral-point. In case of non-earthed
system (ex. I-T NET), the control interface of the inverter becomes basic insulation, thus do not connect
SELV circuit from external controller directly.
(*5) For the control signal wires, use shielded or twisted wires. Ground shielded wires. To prevent malfunction
due to noise, keep the control circuit wiring away from the main circuit wiring as far as possible
(recommended: 10cm or more), and never lay them in the same wire duct. When crossing the control circuit
wiring with the main circuit wiring, lay them at right angles.
(*6)
To bring the inverter into compliance with the European electrical safety standard IEC/EN 61800-5-1;2007, or
compliance with Canadian and U.S. standards (CSA certification) be sure to insert the specified fuse (see
Instruction Manual) in the primary circuit of the inverter.
(*7) Connection terminal depends on SOURCE/SINK setting by slide switch SW1 (please refer to chapter
2.2.7). Connect to (PLC) terminal when SOURCE is set, and to (CM) terminal when SINK is set.
(*8) When the Enable inputs (EN1, EN2) function is not to be used, keep terminals [EN1]-[PLC] and [EN2]-[PLC]
short circuited using jumper wires. For opening and closing the hardware circuit between terminals [EN1]
and [PLC] and between [EN2] and [PLC], use safe relay device approved according to EN ISO 13849-1
PL-e, IEC/EN 61800-5-2 SIL3 or EN 81-20.
(*9) and are separated and insulated.
(*10) CAN signals are isolated from other internal circuit.
(*11) U0,V0,W0 are connected with U,V,W respectively.
(*12) To bring the inverter into compliance with the Electro Magnetic standard, be sure to insert the external
EMC filter in the primary circuit of the inverter.
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