Siemens 125-1957 User Manual
Page 35
Application 2299 – Slave Mode
Siemens Building Technologies, Inc.
25
Descriptor Address
Application
Description
OVRD TIME
20
2281, 2283,
2284, 2286,
2287
The amount of time (in hours) that the controller will operate in
day mode, when the override switch is pressed, while the
controller is in night mode.
NGT OVRD
21
2281, 2283,
2284, 2286,
2287
Indicates the mode that the controller is operating in with
respect to the override switch. NIGHT indicates that the switch
has not been pressed and the override timer is not active. DAY
indicates that the switch has been pressed and the override
timer is active. The controller then uses a day mode
temperature setpoint. This point is only in effect when DAY.NGT
(Point 29) indicates night mode.
AUX.NOAUX 22 2281,
2283,
2284, 2286
AUX indicates that auxiliary radiation is available. NOAUX
indicates that auxiliary radiation is not available.
Valid input: AUX or NOAUX
FREE CLG
23
2281, 2283,
2284, 2286,
2287
Point commanded by the field panel PPCL to enable or disable
mixed air damper modulation (free cooling).
Dl 2
24
2281, 2283,
2284, 2286,
2287, 2299
Actual status of a contact connected to the controller at DI 2.
ON indicates that the contact is closed; OFF indicates that the
contact is open. If a wall switch is used, it is connected to DI 2.
Refer to WALL SWITCH (Point 18).
DI 3
25
2281, 2283,
2284, 2286,
2287, 2299
Actual status of a contact connected to the controller at Al 3/Dl
3. ON indicates that the contact is closed; OFF indicates that
the contact is open. When a contact is connected at DI 3, Al 3 is
not available. Refer to AUX TEMP (Point15).
DI 4
26
2299
Actual status of a contact connected to the controller. ON
indicates that the contact is closed; OFF indicates that the
contact is open.
LOW TEMP DET
26
2281, 2283,
2284, 2286,
2287
Actual status of the low temperature alarm, which is determined,
by the current status of the low temperature detection thermostat.
ON indicates that a low temperature has been detected. OFF
indicates a normal condition.
DX COOLING
27
2287
YES indicates a DX coil is used in cooling mode. NO indicates a
chilled water valve is used in cooling mode.
Valid input: YES or NO
ELEC.NOELEC 27
2281,
2283,
2284, 2286
Indicates whether electric heating is being used.
Valid input: ELEC or NOELEC
FBP.2PSVCTL 28
2281,
2283,
2284, 2286
ENABLE allows two-position valves to close when the face-
bypass damper has been closed (to full-bypass) for 2 minutes.
DISABL disables the feature.
Valid input: ENABLE or DISABL
DAY.NGT 29
2281,
2283,
2284, 2286,
2287, 2299
Indicates the mode in which the controller is operating. Day
temperature setpoints will be used in day mode. Night
temperature setpoints will be used in night mode. This point is
normally set by the field panel.
WRMUP.COOLDN 30
2281,
2283,
2284, 2286,
2287
This point indicates whether or not the unit is currently in warm-
up/cool-down. ON indicates the unit is in warm-up/cool down.
OFF indicates the unit is not in warm-up/cool-down.