LEYBOLD 230110, Instruction Manual

Page: 20 / 56

20
GA130001441_002_C0
– 09/2016
5.3 Connections
5.3.1 Rear Side of the Instrument
The Figure 7, page 20 shows the rear panel of the COMBIVAC CM 51. The way in which
the individual connections have been wired is described in the following sections.
Figure 7
–
Rear panel of the instrument
A
Mains connection with mains switch and fuses
B Ground connection and shield of the TM
measurement cables
C Connection for the PENNINGVAC gauge head
(PM)
D Connections for the THERMOVAC gauge
heads (TM1, TM2)
E Connection for the RS232 or RS485 interface
F Connection for the Profibus-DP interface with
error indicator (red LED)
G Connection for analog output and external
control
H Connection for relay output
5.3.2 Mains Connection
The mains connection on the rear panel (

Figure 7, A, page 20) is intended only for a
mains cord which on the instrument side is provided with a inlet connector for non-heating
apparatus.
NOTICE: Mains cord
Included in the delivery of the instrument is a mains cord. If the plug on the
mains power side is not compatible with your mains power outlets, you will
need a mains cord which meets the following specifications:

Three-wire cable with protective earthing.

Conductor cross-section: 3 x 0.75 mm² or greater.

Cable length 2.5 m maximum.
DANGER: Mains voltage
Appliances, which have not been professionally connected to Earth, can be
life-threatening in the event of a malfunction. For this reason use three-wire
mains cords, respectively extension cords with protective earthing only. Insert
the mains plug into a mains power socket, which provides an Earth contact.

Insert the plug of the mains cord into the mains socket provided on the instrument.

Insert the mains plug of the mains cord into the mains outlet.