12
3.8. Installing The Cover Plate For
The TC 750
The turbomolecular pump with integrated Electronic Drive
Unit TC 750 has an IP 30 protection class rating.
When the turbopump is water cooled the enclosed cover
plate for the TC 750 m
mu
usstt be installed by an electrical specia-
list, in order to attain protection class IP 54
Before installing the cover plate, the Electronic
Drive Unit TC 750 must be disconnected from
the power supply. The speed of the turbomole-
cular pump must be 0 Hz.
Before beginning with any installation work
involving the cover plate for the Electronic
Drive Unit TC 750, the remote plug 8d (see
Section 3.6.) must be removed.
When using the remote plug, the cover of the
remote plug must be unscrewed from the
remote plug.
➡
First the cable clamp must be removed from the TC 750.
➡
Thereafter unscrew the 3 cylinder head screws with slot
(M3) from the TC 750.
➡
Stick on the enclosed sealing to the bottom section 107a.
➡
Bolt the bottom section 107a to the TC 750 with the
hexagon socket screws 107b (3 pieces). The sealing
surface must rest against the TC 750.
➡
Insert the O-ring 107c into the bottom section.
☞
PLEASE NOTE
WARNING
TC 750
8
Dichtung/
Sealing
107a
107b
107c
➡
First pull the corresponding cables through the inserts with
screwed cable glands and the cover 107d and insert the
cables at the TC 750.
In case the pump is operated using the remote control, the
remote control unit must be connected in accordance with
Section 3.11 and the wiring diagram (Section 3.13).
Installing the bottom section
8
Electronic Drive Unit TC 750
107a
Bottom section
107b
Hexagon socket screw (3 pieces)
107c
O-ring
The cable arrangement is as follows:
– Accessories (venting valve, backing pump) in PG 16 with
flat cable (single or dual)
– Interface cable RS 485 in PG 16; for cable dia. 6
– Connecting cable for remote control etc. in insert E 153/8
or E 153/11.
➡
Thereafter screw the cover 107d to the bottom section
107a with the screws 107e (6 pieces).
Particularly ensure that the O-ring 107c is properly seated!
PG 16; for
cable Ø6
Blank
disc
Screw
fitting
PG 16 for
flat cable, single
PG 16 for
flat cable, dual
(scope of delivery
2 pieces)
Insert
(scope of delivery
1 piece E 153/8
1 piece E 153/11)
Inserts and Screw fittings
➡
Firmly tighten the screwed cable glands at the cover 107d.
If a cable feedthrough remains unoccupied, a
blank disc must be inserted instead of the
cable.
After installing the cover plate, the requirements of protection
class IP 54 are fulfilled. The turbomolecular pump may then
be operated once more.
☞
PLEASE NOTE
TC 750
8
107a
107d
107e
107c
Installing the cover
8
Electronic Drive Unit TC 750
107a
Bottom section
107c
O-ring
107d
Cover
107e
Screw (6 pieces)
