3
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.
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 can be used to program this card. If the 4120-3003 card 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.
Install the relay modules in an environment that is within the following:
Temperature: 0° to 120° F
Humidity: 93% Relative Humidity @ 90° F
Overview
General Information
A Note on Panel
Programming for the
4100-3206
Environmental
Requirements
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