General Information
Review the following items for general information about the relay modules.
• All relay module contacts are Form C, dry contacts, meaning the Common terminal is connected to the Normally Closed terminal when the
relay's coil is in the de-energized state.
• Relay operation must be programmed, using the Panel Programmer. Programming a relay involves assigning a software point type to the relay.
This point type determines the system list to which the relay point is assigned and consequently the operation of the relay when an alarm,
trouble, and supervisory condition occurs.
• Feedback loop circuits function as inputs to the system. Feedback circuits are present on all 4100 relay cards, and on both the 4-relay/10
A and 4-relay/2 A upgrade cards. See below for programming details on the 4100-3206. Typically, feedback circuits connect to a set of NO
or NC contacts on a motor or the sail switch on a damper, allowing the state of the device to be monitored. In some situations, the state of
the feedback point is used as a trigger within a custom control equation, allowing the system to react in one way when the contact is in one
position and another way when the contact is in the other position.
• Always disconnect power from the system before installing a relay module.
A Note on Panel Programming for the 4100-3206
From the panel's perspective, the 4100-3206 appears to be functionally the same as the 4120-3003. The 4100-3206, however, does not have the
feedback function that is present in the other assemblies. In the Programmer, the feedback points still appear, but are pre-assigned the point type
"UNUSED" and have their custom label pre-assigned to read "FEEDBACK NOT AVAILABLE."
If the 4100-3206 is not available as a selection in the version of the Programmer being used, the 4120-3003 another option can be used to program
this card. If the 4120-3003 anothercard is programmed, the feedback points should be left with their default point type. The label should be manually
changed to "FEEDBACK NOT AVAILABLE" to avoid confusion when viewing the points.
Environmental Requirements
Install the relay modules in an environment that is within the following:
Temperature: 0° to 120° F
Humidity: 93% Relative Humidity @ 90° F
page 2 579-220 Rev. F
4100/4120- Series and 4010ES Relay Modules Installation Instructions
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