3 - Installation and start-up
3-4
3.2 Connections (continuation)
B Electrical connection
Attention!
All wiring work on the controls, and the compressors
have to be carried out in consideration of the 5 safety rules.
Only the connection to the electricity supply is now required for
the machine which is now ready to use with all conduits in-
stalled.
The machine must only be connected by an electrician!
The following must be observed when connecting to the mains
supply:
Key word
Ensure that
Voltage
•
Tthe machine is only connected to the
voltage stated on the engine rating plate
Rotation
•
The rotational direction is observed under
all circumstances! Based on the attached
arrows.
•
Checking the rotational direction see
chap. 3.3/3.4. Not necessary for
frequency-controlled compressors
Fuses
•
Customer to install the main fuse and
circuit breaker with the EMERGENCY
STOP function; these must be able to
switch at least 1.1 times the motor output
and must be clearly allocated to the ma-
chine
•
Ensure that the mains supply is sufficient-
ly secured (see data sheet)
Connection
•
The supply cable must be situated such
that there is no danger of tripping over it
•
Insert the cable with leads L1, L2, L3, N
and PE through the PG connection
in the connection box
Connect the leads to terminals L1, L2, L3
N (wire 4) and PE respectively
Warning: if possible do not use plugs !!
Electrical connec-
tion
