Electrical Installation - Siemens COMBIMASTER 411 Getting Started Manual

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Figure 4
1.2

Electrical Installation

1.2.1
1. If the Inverter cover (the top-half) has already been fitted unscrew the four
M5 cross-head captive screws on the inverter cover.
2. Remove inverter (cover) to access electrical terminals.
3. Feed the power cable into the terminal housing via the appropriate gland
hole.
4. Connect power leads to terminals L1, L2, L3 and to the separate earth.
To avoid snagging on components when the inverter halves are brought
together run cables along the base of the terminal housing.
5. Use Class 1 75
are used they must be insulated. If crimps are not used, the strip length
must not exceed 5 mm. Use a 4 - 5 mm cross-tip screwdriver to tighten the
terminal screws.
6. Recommended tightening torque for power supply terminals is as given
below.
Power Terminals
Power Supply Terminal
Tightening Torque
Minimum Cable Cross
Section
Maximum Cable Cross
Section
7. A 'drip loop' is recommended when connecting the mains and control
cables.
8. Ensure that the power source provides the correct voltage and is designed
for the rated current. Use appropriate circuit breakers with specified
current rating between the power supply and inverter.
9. Ensure the appropriate circuit breakers/fuses with the specified current
rating are connected between the power supply and the inverter. See
Section 7.5 of the Operating Instructions for further details.
6
Getting Started Guide – March 2002
A5E00157510A
Тел.: 8 (0214) 444395, 443688, 442155, (029) 6171554
MICROMASTER 411 General Layout
Power Cable Connections
o
C copper wire only. Use a 4-core cable. If crimp terminals
measurement
Units of
CSB
[Nm]
[lbf.in]
2
[mm ]
[AWG]
2
[mm ]
[AWG]
CSC
1.3 1.3
12 12
1.5 2.5
16 14
4 4
12 12