Siemens 125-5033 Owner's Manual page 26

Fume Hood Controller Owner's Manual
Address Descriptor
15 EMER STPT
16 LOW WARN
17 HIGH WARN
19 ALM AKNLG
27 AO2 DEADBAND
30 AO2 RANGE
34 TRANS RANGE
35 EXH FLOW
36 FLOW COEFF
37 FLOW STPT
38 FLOW LO STPT
40 CAL DP TRANS
41 DO1 SUP
42 DO2 EXH
43 DO3
44 AI1 DP TRANS
45 AI2 0.10V
46 AO1 0.10V
47 AO2 FLOW SIG
48 DI1 STPT SW
54 ODP DISPLAY
55 DO3 MODE
18
A value of the preset FLOW STPT, in percent, that the controller uses as the
setpoint when EMER ALM is ON.
This point displays an ON or OFF status. When the exhaust flow goes below the
value specified at LOW WARN LMT for the time specified in ALARM TIME, the
point goes into a warning state (ON); the yellow LED is illuminated at the ODP.
This point displays an ON or OFF status. When the exhaust flow goes above the
value specified at HI WARN LMT for the time specified in ALARM TIME, the
point goes into a warning state (ON), the yellow LED is illuminated at the ODP.
This point displays an ON or OFF status that indicates the Horn Silence button
has been pressed at the ODP to acknowledge an alarm condition. The point will
reset when the alarm condition clears or another alarm is initiated.
When EXH FLOW and FLOW STPT are different by more than the AO2
DEADBAND, the AO2 FLOW SIG changes from setpoint to actual flow.
Scaling for the Analog Output (AO2) point. To get the correct output, the slope
and intercept of this point must match the point database of the room controller.
The maximum range, in inches of water (PA), of the differential pressure
transmitter. Standard values are 0.1 (25.3), 0.25 (62.275), 0.5 (124.55), and 1.0
(253).
The calculated value, in CFM (LPS), of the exhaust airflow as measured with the
differential pressure transmitter sensor.
Gain factor for the flow sensor.
Setpoint, in CFM (LPS), that the airflow is controlled to.
The low flow setpoint used in FLOW STPT.
YES or NO point used to calibrate the zero point of the differential pressure
transmitter.
Digital output 1 is used to control the analog output-pneumatic (AO-P) supply
valve or the AO-E module supply input.
Digital output 2 is used to control the analog output-pneumatic (AO-P) exhaust
valve or the AO-E module exhaust input.
Digital output 3 is a spare output.
Analog input 1, a 4 to 20 mA signal from the differential pressure transmitter.
The point displays the mA value of input from the sensor.
Analog input 2 is a 0 to 10 Vdc spare input.
Spare analog output is a 0 to 10 Vdc output.
Analog output 2 signal is used to indicate the exhaust flow setpoint. The output
is 1 to 10 Vdc, which corresponds to 0 to A02 RANGE (Point 30).
Digital input for dry contact connection to control the HI/LOW flow setpoint of the
controller.
Controls the function of the ODP display. It will display either CFM divided by
10 or HI FLOW / LO FLOW.
Controls the function of the DO3. It will follow either the HI/LO setpoint or the
alarm status.
Description
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