96
- Output Current Drop Check.
Other control options are not allowed.
When a terminal element (resistor 4.7 kΩ) is placed out outside the alarm device (actuator)
housing, the
Activated Output Monitoring
parameter shall be set as
Regular Off-Load Check
.
Other monitoring options are not allowed in this case.
2.2.4.6.
Connection of one nonpolar alarm device (actuator, except for extinguishant release
circuits) without built-in diode is carried out as shown in Figure 2.6:
Rн
1
2
4.7 кhm
Кх+
Кх -
1N5400
Actuating Device
, where х is output number (4 … 7)
Figure 2.6.
Connection of One Nonpolar Alarm Device (Actuator) To Panel Output
This connection type is not applied to extinguishant release circuits: pyrotechnical cartridges,
locking devices and other devices with low resistance (single- or two- digit ohms).
With a non-polar actuator connected, the line health monitoring elements (4.7 kΩ resistor and
1N5400 type diode or similar) must be placed directly in the actuator housing.
It is allowed to place line health monitoring elements in the immediate vicinity of the actuator only
for explosion-proof devices.
This type of connection allows monitoring the health of the communication line with an alarm
device (actuator) both in active and inactive states.
In the inactive state, the terminal element (resistor 4.7 kΩ) is monitored using a small current of
reverse polarity.
In the active state, the health of the communication line and the actuator is monitored by checking
the current consumption of the output circuit (direct polarity).
This connection type does not support the monitoring of alarm device (actuator) for functionality
in the inactive state.
The
Activated Output Monitoring
parameter should be set as
Simple
control
2.2.4.7.
Several nonpolar alarm devices (actuators, except for extinguishant release circuits)
without built-in diode are connected to one output as shown in Figure 2.7: