Place the control board(s) away from:
• main circuit components such as contactors, switches and power cables
• hot parts (heatsink, air outlet of the drive module).
￭ Grounding of mounting structures
Arrange the grounding of the module by leaving the contact surfaces of the fastening points
unpainted (bare metal-to-metal contact). The module frame is grounded to the PE busbar
of the cabinet via the fastening surfaces, screws and the cabinet frame. Alternatively, use
a separate grounding conductor between the PE terminal of the module and the PE busbar
of the cabinet.
Ground also the other components in the cabinet according to the principle above.
￭ Busbar material and joints
ABB recommends tin-plated copper but aluminum can also be used.
Note: Before joining aluminum busbars, remove the oxide layer and apply suitable
anti-oxidant joint compound.
￭ Shrouds
The installation of shrouds (touch protection) to fulfill applicable safety regulations is the
responsibility of the drive system builder.
Ready-made shrouding parts are available from ABB for some cabinet designs, see the
ordering information.
￭ Tightening torques
Unless a tightening torque is specified in the text, the following torques can be used.
Electrical connections
NoteTorqueSize
Strength class 4.6...8.80.5 N·m (4.4 lbf·in)M3
Strength class 4.6...8.81 N·m (9 lbf·in)M4
Strength class 8.84 N·m (35 lbf·in)M5
Strength class 8.89 N·m (6.6 lbf·ft)M6
Strength class 8.822 N·m (16 lbf·ft)M8
Strength class 8.842 N·m (31 lbf·ft)M10
Strength class 8.870 N·m (52 lbf·ft)M12
Strength class 8.8120 N·m (90 lbf·ft)M16
Mechanical connections
NoteMax. torqueSize
Strength class 8.86 N·m (53 lbf·in)M5
Strength class 8.810 N·m (7.4 lbf·ft)M6
Strength class 8.824 N·m (17.7 lbf·ft)M8
44 Generic cabinet planning instructions
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