9
Connection "remote"
DI1 (Enable venting) / Pin 2
V+ :
Venting is enabled (venting according to venting mode)
open: Venting locked (no venting is performed)
DI Motor pump / Pin 3
After Pin 4 (pumping station) is activated and the electronic drive unit successfully
completes the self-test (duration approx. 8 seconds), the turbopump is placed into
operation. During operation, the turbopump can be switched off and on again,
while the pumping station remains switched on. The turbopump is not vented
thereby.
V+ :
Turbopump motor on
open: Turbopump motor off
DI Pumping station / Pin 4
Connected pumping station components (e.g. backing pump, venting valve, air
cooling unit) are triggered and, with Pin 3 (motor) simultaneously activated, the
turbopump is placed in operation. Any ongoing error messages are reset when
their cause has been eliminated.
V+ :
Malfunction acknowledgement and pumping station on
open: Pumping station off
DI Standby / Pin 5
In standby mode, the turbopump operates at a specified rotor speed < nominal ro-
tation speed. Factory setting and recommended operation are 66.7 % of the nomi-
nal rotation speed.
V+ :
Standby activated
open: Standby off, operation at nominal rotation speed
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 TC 400 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.
f
(
%
)
100
20
2
10
U(V)
