BUSCH WY 4500 C, Installation And Operating Instructions Manual

Page: 7 / 24

Installation
Fitting
l Make sure that the “Installation Prerequisites” are complied with
l Fit or mount the vacuum pump at its final location
Electrical connection
WARNING
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified
personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention
regulations.
CAUTION
The wiring diagrams given below are typical. Depending on specific
purchase orders or certain markets different wiring diagrams may
apply.
Risk of damage to the drive motor!
The inside of the terminal box must be checked for correct drive
motor wiring diagrams/ instructions.
l Electrically connect the drive motor (120)
l Connect the earth
Electrical motor connection (15 kW)
CAUTION
When connecting up the wires into the terminal box: please make
sure the tightening torque of
3 Nm is adhered to and check with a
calibrated torque wrench (Nuts M6).
Three phase motor connection:
Star-star connection (Low voltage):
Star connection (High voltage):
Thermoswitch connection:
CAUTION
Operation in the wrong direction of rotation can destroy the
vacuum pump within a very short period of time.
Risk of explosion of the drive motor!
Prior to starting-up make sure that the vacuum pump is to be
operated in the right direction.
l
Make sure that the vacuum pump is switched off and cannot
accidentally be switched on again
l Determine rotation sense of the motor by using a measure tool or
by placing a rubber plate on the inlet.
l Press the on/ off switch briefly
l
Make sure that the vacuum pump draws in
If the direction of rotation has to be changed :
u Exchange two of the three feeder leads
Installation and Commissioning
Page 7
T9
T8
T6
T7
T5
T3
T1
T2
T4
P1
P2
P3
P4
T7 T8 T9
T1 T2 T3
L1 L3 L2
T4 T5 T6
T4 T5 T6
T7 T8
T9
W1
L1
L3 L2
T1 T2 T3
P1
P2