Emerson Rosemount 1057 Quick Start Manual page 11

Single channel transmitter

Hide thumbs Also See for Rosemount 1057:

September 2018

Note

Use watertight fittings and hubs that comply with your requirements.

Connect the conduit hub to the conduit before attaching the fitting to the

transmitter.

3.3

Power, output, and sensor connections

3.3.1

Power wiring

Emerson offers two power supplies for the Rosemount

1. 24 Vdc (20-30 V) power supply (02 ordering code)

2. 85-265 Vac switching power supply (03 ordering code)

AC mains (115 or 230 V) leads and 24 Vdc leads are wired to the power

supply board which is mounted vertically on the left side of the main

enclosure cavity. Each lead location is marked clearly on the power supply

board. Wire the power leads to the power supply board using the lead

markings on the board.

The grounding plate is connected to the earth terminal of power supply

input connector TB1 on the 01 (115/230 Vac) and 03 (85-265 Vac) power

supplies. The green colored screws on the grounding plate are intended for

connection to some sensors to minimize radio frequency interference. The

green screws are not intended to be used for safety purposes.

Figure 3-2: 24 Vdc Power Supply (02 Ordering Code)

This power supply automatically detects DC power and accepts 20 Vdc to 30

Vdc inputs.

Four programmable alarm relays are included.

Quick Start Guide

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