11
Connection "remote"
DI2 (Heating) / Pin 6
V+ :
Heating on
open: Heating off
DI3 (Sealing gas) / Pin 10
V+ :
Sealing gas valve open
open: Sealing gas valve closed
DI Error acknowledgement / Pin 13
V+ :
Reset ongoing error messages when cause has been eliminated with a pulse of
min. 500 ms duration.
open: Inactive
DI Remote priority / Pin 14
V+ :
The connection "
remote
" has operation priority over all other digital inputs.
open: Remote priority inactive
AI Rotation speed setting mode / Pin 7 and Pin 11
The analog input at the TM 700 DN defines the set rotation speed of the turbopump. An
input signal of 2 - 10 V between AI+ (Pin 7) and AI- (Pin 11) corresponds to a rotation
speed within the range of 20 - 100% of the nominal rotation speed. If the input is open or
signals fall below 2 V, the pump is accelerated up to nominal rotation speed.
Outputs
The digital outputs at the connection "
remote
" can be loaded with a maximum of 24 V /
50 mA per output. All outputs listed below are configurable by the Pfeiffer Vacuum pa-
rameter set via interface RS-485 (description related to factory settings).
DO1 (Rotation speed switch point attained) / Pin 8
Active high after the rotation speed switch point is attained. Rotation speed switch point
1 is factory-set to 80% of the nominal rotation speed. It can, for example, be used for a
"pump operational" message.
DO2 (No errors) / Pin 9
When the supply voltage has been established, digital output DO2 permanently outputs
24 V DC which means "no errors". Active low in case of error (collective error message).
DO Remote priority active / Pin 23
Active high: The connection "
remote
" takes priority over any other connected control
panels (e.g. RS-485). With active low, the connection "
remote
" is ignored.
AO1 Analog output 0-10 V DC / Pin 12
A rotation-speed-proportional voltage (0-10 V DC equals 0 - 100 % x f
Nominal
) can be
picked up via the analog output (load R
≥
10 k
Ω
). Additional functions (optionally current/
power) can be assigned to the analog output via DCU, HPU or PC.
f(%)
100
20
2
10
U(V)
Содержание TM 700 DN
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