Operating instructions for S 40-3...S 150-3 series screw compressors Page 39
Installation 3.4 Electrical connection
3.4 Electrical connection
Power disconnecting device
Each compressor unit must be equipped with a power disconnecting device.
Rated voltage
The data of your mains supply (operating voltage, control voltage, type of cur-
rent, frequency,...) must be identical with the data on the rating plate on the
switch cabinet.
In the event of deviations, please contact BOGE's service department or your
supplier.
Please refer to the section on "Technical data" for details of the fuses required.
Connecting the leads
– Check to ensure that all terminals in the switch cabinet are firmly tightened.
If necessary, retighten the screw connections.
– Route the lead cable through the PG screw connection
– Connect leads L1, L2, L3, N, Pe (PEN) firmly to the power supply terminal.
A clockwise rotational field must be created.
– After the first 50 operating hours, retighten the electrical connections.
DANGER: High voltage!
Ensure that work on the electrical equipment of the compressor is only car-
ried out by authorised electricians.
Observe current national and international regulations (such as the German
VDE regulations, DIN/EN directives) and local safety regulations.
Also observe the regulations of your local power supply company regarding
the load rating of your power supply.
Before starting any work:
1. Disconnect the compressor from all electric power sources using the cir-
cuit breaker.
2. Take preventive action to prevent the current from being inadvertently
switched back on.
3. Check to ensure that all current-carrying parts are zero-potential.
4. Earth and short-circuit.
5. Cover or shield adjacent current-carrying parts.
DANGER: High voltage!
If the drive has a frequency converter (SF):
– Wait until the fan has stopped and all indicator LEDs have gone off after
switching off the power supply.
– Wait another 5 minutes before starting work.
Do not open any guards or safety covers until this time has elapsed.
To Next Page
Loading...
Need help?
General
