Premisys 840160, Справочное руководство

Страница: 25 / 32

Alarm Cards 1-25
Alarm Cards Alarm Card User Screens and Settings
Table 1-5. ALR 28+14 Alarm Switch Screen Actions
Table 1-6. ALR 28+14 Alarm Switch Option Settings and Defaults
Notes:
1. Sensor numbers are assignable only if the ACT ON parameter is set to sensor number
1 to 28 . The default setting is 1 .
SWITCH NAME
A user-defined field up to six characters identifies the specific switch. Note that the switch
name is a local identifier; it is not transmitted with alarm conditions.
SW. CTRL
This variable indicates the initial state of the switch. The possibilities are off (which
unconditionally turns the switch off), on (which unconditionally turns the switch on) or
act_on (which relies on the state of the switch). The default value is off .
As mentioned previously, 12 of the switches are Form C (which may be either open or closed),
one is Form A (always open), and one is Form B (always closed).
In the event of system power failure, switch 1 can be used as a fail-safe switch to activate a
device that notifies the user. In order for this to occur, a jumper must be set on jumper pair
JP63. located towards the center of the card. The contact for switch 1 will close if the system
loses power, establishing a circuit that can be used to power an external warning device. The
current source must be provided by the external device.
Action Function
Refresh Updates certain time-related information fields that are not automatically
updated.
dEfault Returns all settings to the default states.
pgUp Returns to the previous page.
pgDn Goes to the next page.
Main Returns to the Alarm Sensor Screen.
Parameter User Options Notes Default
# Alarm Switch number 1 to 14 fixed
SWITCH Name User-defined switch name blank
SW. CTRL off on act_on act_on
ACT ON info minor major crit sensor major
SENSOR # n/a 1 to 28 1 n/a
STATUS off on displayed