Operating Instructions

Fume Hood Monitor Owner's Manual
6-2 Siemens Building Technologies, Inc.
Descriptor Address Application Description
LO ALM LMT 13 651 This point sets the value, in fpm (m/s), which is used for the Low
Alarm set point (refer to Point 5).
OCC UNOCC 29 650, 651 This point indicates the mode of occupied or unoccupied. When
mode is UNOCC, the red LED is ON, the green LED is OFF, and
the LCD displays OFF. When the mode is OCC (normal operation),
the FHM detects alarms, displays face velocity, and allows the
user to initiate an EMERGENCY alarm.
ALARM RELAY 41 650, 651 In NORMAL status, the relay is energized and the contacts are
CLOSED (shorted). An alarm will cause the relay to de-energize
(no power to the coil) and the contacts will OPEN.
DI FUNCTION 52 651 The value of this point determines the function of AUX DI and AUX
BUTTON 2. Values of 1, 2, 3, 4, 11, 12, and 13 enable the
following functions:
0 No special functions
1 Sash Height Alarm Function
2 High Face Velocity Alarm Disable
3 DI Alarm Point
4 OCC/UNOCC at DI
11 OCC/UNOCC at BUTTON 3 and Function # 1
12 OCC/UNOCC at BUTTON 3 and Function # 2
13 OCC/UNOCC at BUTTON 3 and Function # 3
SASH ALARM 53 651 This point changes from NORMAL to ALARM when the AUX DI
has been shorted for the time entered in SASH TIME (Point 54).
When in ALARM, the buzzer stays ON for 6 one-second pulses
every minute until the AUX DI sash switch is in ALARM again. This
point is used only when Point 52 is equal to 1 or 11.
SASH TIME 54 651 The default value for this point is 120. Values of 0–9999 enable
this point. When the DI AUX has been shorted for the time
specified by this point, the SASH ALARM will indicate ALARM.
This point is used only when Point 52 is equal to 1 or 11.
AUX DI 55 650, 651 External digital input used only by the field panel. A shorted input
will indicate CLOSED.
BUTTON 1 56 650, 651 The hardware switch input for button 1, which is labeled “Horn
Silence.” This is a toggle action switch. For Application 651, this is
logically tied to the point HORN SILENCE (Point 61).
BUTTON 2 57 650, 651 The hardware switch input for button 2. This is a toggle action
switch. This is logically tied to the point AUX BUTTON 1 (Point 62).
This point is available for field panel use.
BUTTON 3 58 650, 651 The hardware switch input for button 3. This is a toggle action
switch. This is logically tied to the point AUX BUTTON 2 (Point 63).
This point is available for field panel use.
BUTTON 4 59 650, 651 The hardware switch input for button 4, which is labeled
“EMERGENCY.” This is a toggle action switch. For Application
651, this is logically tied to the point EMERGENCY (Point 64), the
user-activated alarm.
continued on the next page. . .