FMS-2000C
LIT-12013504
45
Relays
The relay output can be used for the following applications:
•
Alarm annunciator
•
Isolation mode indication
•
Occupancy mode indication
•
Triggering pilot relay for high-current devices based on setpoints, isolation mode, or occupancy mode
•
Signaling isolation or occupancy mode to other controllers
•
Activating bypass dampers
•
Activating humidifiers or dehumidifiers for humidity control applications
•
Activating area lighting via pilot relay based on occupancy mode
Configuring the trigger mode for setpoint
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view relay settings, tap
Relay
.
3.
To find the relay you want to configure the trigger mode for, swipe left.
4. On the
RELAY
screen, expand
Trigger Mode
and tap
Setpoint
. See Table 6 for more information.
5.
To confirm the settings, collapse
Trigger Mode
.
Configuring the input channel
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view relay settings, tap
Relay
.
3.
To find the relay you want to configure the input channel for, swipe left.
4. On the
RELAY
screen, tap the
Input Channel
arrow and scroll to the analog input you want to configure the relay to.
5.
To confirm the settings, tap the
Checkmark
icon.
Note:
Relay 1 uses AI-1 by default, but you can remap it to one of the four analog inputs, or either of the two dedicated thermistor
inputs.
Configuring the high and low setpoints
When using the setpoint trigger mode, the FMS-2000C controller has to be in either positive or negative isolation mode in order to enter
the high and low relay setpoints. If the unit is in neutral isolation mode, then setpoint entry is not available. The high setpoint determines
the threshold at which relay gets activated if in direct acting mode, or gets deactivated if in reverse acting mode. The low setpoint
determines the threshold at which the alarm relay gets deactivated if in direct acting mode, or gets activated if in reverse acting mode.
To configure the high and low setpoint for the positive isolation mode, complete the following steps:
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view relay settings, tap
Relay
.
3.
Swipe left to find the desired relay.
4. On the
RELAY
screen, tap the
Positive High Point
arrow and enter the high setpoint value for the positive isolation mode.
5.
To confirm the new setting, tap the
Checkmark
icon.
6. Tap the
Positive Low Point
arrow and enter the low setpoint value for the positive isolation mode.
7.
To confirm the new setting, tap the
Checkmark
icon.
To configure the high and low Setpoint for the negative isolation mode, complete the following steps:
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view relay settings, tap
Relay
.
3.
Swipe left to find the desired relay.
4. On the
RELAY
screen, tap the
Negative High Point
arrow and enter the high setpoint value for the negative isolation mode.
5.
To confirm the new setting, tap the
Checkmark
icon.
6. Tap the
Negative Low Point
arrow and enter the low setpoint value for the negative isolation mode.
7.
To confirm the new setting, tap the
Checkmark
icon.
Trigger mode
Description
Setpoint mode
Configure this mode to trigger a pair of setpoints to determine when to activate or deactivate the alarm relay.
Isolation mode
Configure this mode to trigger the alarm relay based on the mode of isolation selected.
Occupancy mode
Configure this mode to trigger the state of occupancy to determine when the alarm relay should be active or inactive.
Table 6:
Relay output trigger configuration