18
Installation
1)
The option must be set via serial interface RS485 (refer to operating instructions PM 0547 BN,
Pumping Operation With DCU)
Outputs
1)
The option must be set via serial interface RS485 (refer to operating instructions PM 0547 BN,
Pumping Operation With DCU)
2)
The following technical data are applicable for the contacts: U
max
= 50 VDC, I
max
= 1 A
4
Pumping station
Pumpstand aus
Pumping station on: the turbo-
pump is driven, backing pump
control via relay box, the air
cooling unit runs
5
Heating
Heizung aus
Heating on: the heating is swit-
ched on once the rotation
switchpoint is attained. The
heating is switched off, if the
rotation switchpoint is not
attained
Option: Sealing gas con-
nection control
1)
Sealing gas valve closed
Sealing gas valve open
Reset
Reset: by supplying a pulse
(T< 2s) with an amplitude of
24V a malfunction acknow-
ledgement can be processed
6
Standby
Standby off
The turbopump is controlled
to 66% of its nominal rotation
speed
7
Rotation speed setting
mode
Rotation speed setting mode is
off
The rotation speed can be
modified by feeding a PWM
signal to this pin or via
RS485
1)
Pin Function
Open (low)
Closed (high)
8
Switching output 1
Rotation speed switchpoint
not attained
Rotation speed switchpoint
attained; output can be loaded
with 24 V/50 mA
9
Switching output 2
Collective malfunction mes-
sage
failure-free operation; output
can be loaded with 24 V/50 mA
11
Contact output 1
Rotation speed switchpoint
not attained
contact
2)
between Pin 11 and
Pin 12 is closed, if the rotation
switchpoint is exceeded
12
Contact output 1
13
Contact output 2
Collective malfunction mes-
sage
contact
2)
between Pin 13 and
Pin 14 is closed at failure-free
operation
14
Contact output 2
15
Analog output
Output voltage is proportional to the rotation speed: 0 - 10 VDC
= 0 - 100% *f
end
/ load R
≥
10 k
Ω
(optional current/power)
1)
Pin Function
Open (low)
Closed (high)
