Siemens 410 User Manual

MICROMASTER 410    Operating Instructions

6SE6400-5EA00-0BP0

27

If an RCD (also referred to as ELCB or RCCB) is fitted, the MICROMASTER
inverters will operate without nuisance tripping, provided that:
þ  A type B RCD is used.
þ  The trip limit of the RCD is 30 mA.
þ  The neutral of the supply is grounded.
þ  Only one inverter is supplied from each RCD.
þ  The output cables are less than 30 m [98.43 ft](screened) or 50 m [164.04 ft]

(unscreened).

All inverters will operate at full specification with cable lengths up to 30 m [98.43 ft]
(screened) or 50 m [164.04 ft] (unscreened).

♦

  Isolate the mains electrical supply before making or changing connections to

the unit.

♦

  Ensure that the inverter is configured for the correct supply voltage:

single-phase 230 V MM410 MICROMASTERS must not be connected to a
higher voltage supply.

♦

  The 115 V unit MUST only be connected to a 115 V supply.

♦

  When synchronous motors are connected or when connecting several motors

in parallel, the inverter must be operated with voltage/frequency control
characteristic (P1300 = 0, 2 or 3).

♦

  Ensure that the appropriate circuit-breakers/fuses with the specified current

rating are connected between the power supply and inverter (see Tables
starting on page 63).

♦

  Use Class 1 60/75

C copper wire only (16 AWG minimum for UL

compliance). For tightening torque see Table 7-2 on page 64.

♦

  To tighten up the power terminal screws use a 4 - 5 mm cross-tip screwdriver.