15
Installation
• When operating the pump with more than 50 % of the maximum gas load,
sealing gas must be used to ensure rotor cooling.
Connecting the elec-
tronic drive unit to
the power supply
The turbopumps CompactTurbo™ TMH/U 261 form a single unit with the electron-
ic drive unit. For voltage supply, use only Pfeiffer Vacuum power supplies (e.g.
TPS 200 or DCU 200). Use other power supplies only after consultation with Pfe-
iffer Vacuum and comparison with valid specifications (specifications of the power
supplies on request).
Fig. 7: TC 600 connection to power supply TPS or DCU, installation drawing for shiel-
ded cable
Î
Unscrew the screw with lock washer 8c from the TC 600 (below
connection X4).
1)
Î
Insert the X4 plug on the 8a connection cable into the X4 connection on the
TC 600 and screw in the 8b screw.
Î
Fasten the X4 plug to the TC 600 with a screw and lock washer 8c.
1)
Î
Connect the X2 plug on the 8a connection cable to the TPS 200/DCU 200 power
supply pack at the X2 connection.
Î
Fasten the X2 plug to the power supply with a screw and lock washer 8c (inclu-
ded with the cable).
1)
1)
Only for PM 051 843 -T shielded connection cable
(see p. 33, chap. 12)
.
After operating voltage is applied, the TC 600 performs a self-test to check the sup-
ply voltage. The supply voltage for the turbopumps TMH/U 261 is 48 VDC ± 5% in
accordance with standard EN 60 742.
WARNING
Danger of electric shock
In case of defect, the parts connected to the power supply are under voltage.
Î
Always keep the mains connection freely accessible so you can disconnect it at any
time.
8Electronic drive unit
X
Power supply unit TPS or DCU
8a
Connecting cable TC 600 - TPS/DCU
X1
Mains connection TPS/DCU
8b
Screw
X2
Connection connecting cable - TPS/DCU
8c
Screw with lock washer
X4
Connection connecting cable - TC
98
Remote plug
S1
Switch ON/OFF
I
O
S1
X
X2
X2
X1
8c
8a
X4
8b
8c
X4
8
98
H
