Wiring Diagrams; Signal Outputs - Bühler technologies TC-Standard OEM Guía Rápida

TC-Standard OEM

4.4.1 Wiring diagrams

Power board
Controller board
4.4.1.1 115 V and 230 V transformer
The voltage supply for the sample gas cooler must be connec-
ted to terminals 8 and 9 on the power board. The earth con-
ductor must be connected to the earth bolt on the housing.
The operating voltage of the pumps which may optionally be
connected must match the operating voltage of the sample
gas cooler.
4.4.1.2 115 V and 230 V switching power supply
Connect the power supply for the sample gas cooler to the
switching power supply. The earth conductor must be connec-
ted to the earth bolt on the housing.
The operating voltage of the pumps which may optionally be
connected is 24 V DC. Please note the polarity when connect-
ing.
12 Bühler Technologies GmbH
Version
Ter- Trans- SNT 24 V
minal forme
r
Status output
5 Status n.o. / white
6 Status com. / yellow
7 Status n.c. / red
Power supply
8 N In- 0 V
ternal
9 L In- +24 V
ternal
10 -
Condensate pump
(CP)
11 L +24 V +24 V
12 N 0 V 0 V
13 -
Sample gas pump
(P1)
14 L +24 V +24 V
15 N 0 V 0 V
Terminal Function
14 Analogue
output +
15 Analogue
output -
FF1.1 brown
FF1.2 white
FF2.1 brown
FF2.2 white
4.4.1.3 24 V DC
The voltage supply for the sample gas cooler must be connec-
ted to terminals 8 and 9 on the power board. The earth con-
ductor must be connected to the earth bolt on the housing.
The operating voltage of the pumps which may optionally be
connected is 24 V DC. Please note the polarity when connect-
ing.

4.5 Signal outputs

Plug connection (optional)
The unit has an optional EN 175301-803 plug for the status
output.
Plug numbering Alarm contact (S2)
The clamping area has a diameter of 8 – 10 mm (0.31 –
0.39 inch).
Description of signal outputs
Function / Description
contact type
internal the follow-
changeover ing device
contact: statuses can
max. be indicated
250 V AC/ via two
150 V DC, 2 A, switching
50 VA outputs:
4-20 mA Signalling of
analogue actual tem-
output perature
(R <500 Ω) (please use
Load
shielded
cables)
Analogue output (S3)
1 - N/C
2 - N/C
3 - GND
4 - 4-20 mA out
5 - shield
Contact between T6 and T7 on the
power board closed (alarm)
• No mains voltage and/or ac-
tual temperature outside the
alarm thresholds
Contact between T5 and T6 on the
power board closed (OK)
• Mains voltage attached + ac-
tual temperature within the
alarm thresholds
With moisture detector option
Contact between 6 and 7 closed
(alarm)
• The moisture detector re-
gisters residual humidity in
the sample gas or cable
break: Error message
Contact between 5 and 6 closed
(OK)
• no residual moisture in
measuring gas / no cable
break
With temperature signal option
T = -20 °C ≙ (-4 °F) -> 4 mA/ 2 V
Cooler
T = 5 °C ≙ (41 °F) -> 9 mA/ 4,5 V
Cooler
T = 60 °C ≙ (140 °F) -> 20 mA/
Cooler
10 V
BX440019 ◦ 11/2019