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April 2020
Figure 2-2: Current Output Wiring
2.4.3
Alarm relay wiring
Emerson supplies four alarm relays with the switching power supply (85 to
265 Vac, 03 order code) and the 24 Vdc power supply (20-30 Vdc, 02 order
code).
Wire the relay leads on each of the independent relays to the correct
position on the power supply board using the printed lead markings (NO/
Normally open, NC/Normally closed, or Com/Common) on the board. See
Figure
2-3.
Figure 2-3: Alarm Relay Wiring for Rosemount 1056 Switching Power
Supply (03 Order Code)
Table 2-1: Performance Specifications
NO1
COM1
NC1
Quick Start Guide
Relay 1
Quick Start Guide
19
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