Dual Current Loop Isolator

EUA-7-100980xxx - Dual Current Loop Isolator EU-10098A, Rev. A



Description
The Dual Signal Isolator has been designed to isolate two 4-20 ma current loop signal sources from DYNAPOWER electronic control (drive) circuits. The output circuits of the Isolator are specifically intended to provide reference signals to Dynapower drive circuits. The drive circuits require a zero input for zero output, therefore provision has been in the Isolators to remove the effect of the 4 ma "zero" current. Dynapower drive circuits normally operate with reference voltages of approximately 2.5 volts. The output of the Isolator is adjustable to match the drive circuit reference voltage.

Terminal Connections
Terminal	Label	Function
1	115 Vac	115 Vac power input
2	115 Vac	115 Vac power input
3	Com	Output common
4	15 Vdc	+15 Volt output
5	Clmp In	CLAMP input command
6	Cha 2 A out	Channel 2 A output
7	Cha 2 B out	Channel 2 B output
8	Cha 1 A out	Channel 1 A output
9	Cha 1 B out	Channel 1 B output
10
11	Cha 1 + In	Channel 1 pos input
12	Cha 1 - In	Channel 1 neg input
13	Cha 1 sh	Channel 1 input shield
14	Cha 2 + In	Channel 2 pos input
15	Cha 2 - In	Channel 2 neg input
16	Cha 2 +sh	Channel 2 input shield

Current Standard Board

EUA-7-100980001

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Adjustment Functions