Chapter 5 Installing the Tracer MP581 programmable controller

Wiring inputs and outputs

The Tracer MP581 enclosure is designed to simplify the wiring and con- figuration of inputs and outputs by providing a large space for routing wires and by eliminating the need to manipulate jumpers. Table 16 lists Tracer MP581 inputs and outputs.

Table 16. Inputs and outputs

Type

Number

Description

 

 

 

Universal inputs

12

Dry-contact binary, thermistor,

 

 

0–20 mA, 0–10 Vdc, linear resistance.

 

 

The first four inputs can be used

 

 

directly with resistance temperature

 

 

detectors (RTDs).

 

 

 

Static pressure

1

Differential pressure sensor, 5 Vdc,

input

 

0–5 in. wc

 

 

 

Binary outputs

6

Powered relay contacts, 6 VA at 24 Vac

 

 

 

Analog outputs

6

0–10 Vdc or 0–20 mA

 

 

 

Input/output wiring guidelines

Input/output wiring must meet the following guidelines:

•Wiring must conform with the National Electrical Code and local elec- trical codes.

•Use only 18 AWG twisted-pair wire with stranded, tinned-copper con- ductors.

•Binary input/output wires must not exceed 1,000 ft (300 m).

•Analog input wires must not exceed 300 ft (100 m) for thermistors and 0–10 Vdc inputs and 1,000 ft (300 m) for 0–20 mA inputs.

•Analog output wires must not exceed 1,000 ft (300 m) for 0–10 Vdc outputs and 0–20 mA outputs.

•Do not run input/output wires in the same wire bundle with high- voltage power wires. Running input/output wires with 24 Vac power wires is acceptable, but the input wire must be shielded.

•Terminate input/output wires before installing the main circuit board (see “Installing the circuit board” on page 76).

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BAS-APG001-EN

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Trane BAS-APG001-EN Wiring inputs and outputs, Input/output wiring guidelines, Inputs and outputs, Type Number Description
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