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5.4.2 Wiring Diagram Variable-Frequency Drive
CAUTION
The machine can start immediately when power is supplied.
Risk of inadvertent start-up!
• Make sure that a start-up will not lead to a dangerous situation.
1
2
PE
L1
L2
L3
PE
L1 L2 L3
VFD
L1
L2
L3
PE
M
Connect PE
Motor already wired
Connect L1, L2, L3
5.4.3 Start / Stop Connection
The following applies to machines equipped with an on-board variable-frequency drive
(VFD).
• The Variable-Frequency Drive (VFD) is delivered with preset factory parameters.
Please refer to the specific wiring diagram supplied inside the Variable-Frequency
Drive (VFD).
• For the connection of the control cables, install a cable in a bore hole at the terminal
box (TB). Use EMC cable fittings if required.
• These parameters can be changed according to the specific document “Pump Control
Instructions, art. no.: 0870208958”. Contact your local Busch agency or your Busch
representative to check if your machine is a custom or a standard one.
Summary of Contents for COBRA NX 0950 A
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