7 | Electrical Installation
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Operating instructions CMVpro 125-400 | Version 1-en
• All unused cable inlets on the terminal box are sealed watertight with
blind plugs.
• Sealing ring and sealing surface on the terminal box are clean.
• Close terminal box.
7.5
Mounting motor cover
After completion of the electrical installation work, an optional motor cover can
be installed on a fan mounted outdoors
_
26].
Fig. 33:
Mounting motor cover
• Fasten the motor cover to the support as depicted.
7.6
Final inspection
• Verify mains and motor connections with motor nameplate data.
• Check the sizing and setting of the electrical protective devices (fuses, mo-
tor protection switch).
• Check installation of motor connection cable and isolation switch.
• Three-phase mains voltage is applied to the line side of the isolation
switch.
• Check connections of protective earthing (PE) and grounding for fixed posi-
tion and for execution compliant with standards.
• If frequency converter (FC) is used:
• Check FC terminal assignment, shield connection, and cable strain re-
lief.
• Check and record important FC parameters and settings: Maximum
output frequency, V/f characteristic curves, acceleration and braking
times
_
41].
If required for control and placement in service, connect an external control unit
to the FC.