Siemens MICROMASTER 440 Operating Instructions Manual page 35

Issue 10/06
2.4.2 Power and motor connections
WARNING
The inverter must always be grounded.
♦ Isolate the mains electrical supply before making or changing connections to
the unit.
♦ Ensure that the inverter is configured for the correct supply voltage:
MICROMASTERS must not be connected to a higher voltage supply.
♦ When synchronous motors are connected or when coupling several motors in
parallel, the inverter must be operated with V/f control characteristic (P1300 =
0, 2 or 3).
CAUTION
After connecting the power and motor cables to the proper terminals, make sure
that the front covers have been replaced properly before supplying power to the
unit!
NOTICE
♦ Ensure that the appropriate circuit-breakers/fuses with the specified current
rating are connected between the power supply and inverter (see chapter 5,
Tables 5-5).
♦ Use Class 1 60/75
torque see Table 5-2.
Operation with long cables
All inverters will operate at full specification with cable lengths as follows:
Frame Sizes
screened
unscreened
Using the output chokes specified in catalogue DA 51.2, the following cable lengths
are possible for the appropriate frame sizes:
Supply Voltage 200 V ...
240 V ± 10%
Frame Sizes A ... F
screened 200 m
unscreened 300 m
CAUTION
If using output chokes operation is only permissible with a pulse frequency of
4 kHz. Make shure that the automatic pulse frequency reductions are disabled.
Coercing required parameter adjusting: P1800 = 4 kHz , P0290 = 0 or 1.
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
o
C copper wire only (for UL compliance). For tightening
A to F
50 m
100 m
380 V ... 400 V ± 10 %
A ... B C D ... F FX, GX A ... C D ... F FX, GX
150 m 200 m 200 m
225 m 300 m 300 m
FX and GX
100 m
150 m
401 V ... 480 V ± 10 %
300 m 100 m 200 m
450 m 150 m 300 m
2 Installation
500 V ... 600 V
± 10%
C D ... F
300 m 100 m 200 m
450 m 150 m 300 m
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