Motor Connection; Connection Via Terminal Box - Lenze MQA Serie Montage- Und Einschaltanleitung

Motor connection

Connection via terminal box

Observe the notes on wiring, data on the nameplate, and the connection diagram in the
terminal box.
The connection must ensure a continuous and safe electrical supply:
No protruding wire ends
•
Use assigned cable end fittings
•
Ensure good electrical conductivity of the contact (remove paint residues) if an additional
•
PE connection is used
Establish a safe protective earth connection
•
After the connection is completed, make sure that all connections on the terminal board
•
are firmly tightened
The terminal box has to be free of foreign bodies, dirt, and humidity
•
All unused cable entries and the terminal box itself must be sealed so that they are dust-
•
tight and waterproof
The smallest air gaps between uncoated, live parts and against earth must not fall below the
following values:
Minimum requirements for basic insulation
according to IEC/EN 60664-1 (CE)
3.87 mm
Position of the connections
Position Meaning
1 Power connection
Brake connection
PE connection
2 Feedback connection
Connection of temperature monitoring
3 Blower connection
Higher requirements for UL design
6.4 mm
9.5 mm
1
2
Electrical installation
Connection via terminal box
Motor diameter
<178 mm
> 178 mm
3
Motor connection
47