Operating instructions

Electrical installation
4.2 Checklist for electrical installation
Drive converter cabinet units
44 Operating Instructions, 10/2008, A5E00288214A
4.2 Checklist for electrical installation
Use the following checklist to guide you through the electrical installation procedure for the
cabinet unit. Read the safety information at the start of these Operating Instructions before
you start working on the device.
Note
Check the boxes accordingly in the right-hand column if the activity applies to the cabinet
unit in your scope of supply. In the same way, check the boxes once you have finished the
installation procedure to confirm that the activities are complete.
Item Activity Fulfilled/Complete
Power connections
1 The line-side and motor-side power cables must be dimensioned and routed in accordance
with the ambient and routing conditions. The maximum permissible cable lengths between
the converter and motor must be observed depending on the type of cable used (see
"Electrical installation / Power connections / Connection cross-sections and cable
lengths").
The PE ground at the motor must be fed back directly to the cabinet unit.
The cables must be properly connected with a torque of 50 Nm to the cabinet unit
terminals. The cables for the motor and low-voltage switchgear must also be connected
with the required torques.
2 The cables between the low-voltage switchgear and the cabinet unit must be protected
with line fuses to provide adequate conductor protection (VDE 636, Part 10). See
"Technical specifications" for the appropriate fuses.
3 For strain relief, the cables must be clamped on the cable propping bar (C-type mounting
bar).
4 When EMC-shielded cables are used, screwed glands that connect the shield to ground
with the greatest possible surface area must be provided on the motor terminal box. On
the cabinet, the cables must be grounded with the clips supplied with the EMC shield bus
with the greatest possible surface area (shield bus supplied with option L00 or can be
ordered separately with option M70 – see "Electrical installation / EMC-compliant
installation").
5 The cable shields must be properly applied and the cabinet properly grounded at the
appropriate points (see "Electrical installation / EMC-compliant installation").
6 The voltage of the fan transformers in the Active Line Module (-G1 -T10) and in the Motor
Module (-T1 -T10) and in the internal power supply (-A1-T10) must be set. Larger cabinet
units have 2 fan transformers each in the Active Line Module and in the Motor Module
(-G1-T10/-T20) and (-A1-T10/-T20), which must be set jointly (see section "Electrical
installation / Power connections / Adjusting the fan voltage (-G1-T10, -T1-T10)" and
"Electrical installation / Power connections / Adjusting the internal power supply
(-A1 -T10)").
7 Before the cabinet is operated from an ungrounded supply/IT system, the connection
bracket for the interference suppression capacitor on the Active Interface Module (-A2)
must be removed (see "Electrical installation / Removing the connection bracket for the
interference suppression capacitor with operation from an ungrounded supply").