Wiring Universal Inputs - Trane Engineered Smoke Control System Application Manual

Signal
Common
Binary switch Tape back shield
NOTE: To reduce the potential for transients, locate input
devices in the same room with the Tracer MP581.
BAS-APG001-EN

Wiring universal inputs

The Tracer MP581 controller has 12 universal inputs. Use the Rover ser-
vice tool to configure inputs for analog or binary operation.
The common terminals on the Tracer MP581 termination board are con-
nected to the metal enclosure by means of a ground screw. Shield wires
should be connected to a common terminal. Table 17 shows the load the
Tracer MP581 places on sensors.
Table 17. Load placed on sensors
Input type
Vdc (linear)
mA (linear)
Wiring binary inputs
Use binary inputs to monitor statuses, such as fan on/off and alarm
resets.
To wire a binary input:
1. Connect the common wire to a common terminal as shown in
Figure 34.
Note that, because the common terminals are in parallel, you can
wire the common wire to any available common terminal.
2. Connect the shield wire to a common terminal at the termination
board and tape it back at the input device.
3. Connect the signal wire to an available input terminal (IN1–IN12).
4. Use the Rover service tool to configure the input for binary operation.
Figure 34. Wiring a binary input
< 1000 ft
(300 m)
Shield
Wiring inputs and outputs
Load on sensor
21 kΩ
221 Ω
67