UI current loop jumpers for IOM5711 - PEAK - PK-IOM5711-0 - PK-IOM5731-0 - Input/output controller - PEAK IOM5711 - PEAK IOM5731

PEAK IOM57 Input/Output Modules Installation Guide

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The current loop fail-safe jumpers are on the circuit board under the controller cover near the UI terminals. When a UI is defined in the system software as a 4 to 20 mA analog input and the UI’s current loop jumper is in the default disabled position, the 4 to 20 mA current loop circuit opens whenever power to the controller is interrupted or off. The following figure shows this setup

Figure 1. Current loop jumper positions

Setting the current loop jumper to the enabled position, as shown in Figure 1 connects an internal 100 ohm resistor across the UI terminals, which maintains the 4 to 20 mA current loop circuit even when power to the controller is interrupted or off.

Important: Current loop jumpers must be in the disabled (default) position for all UIs that are not set up to operate as 4 to 20 mA analog inputs.

The following table identifies the current loop jumpers that are associated with each UI on the IOM5711 controller.

Table 1. IOM5711 UI inputs and jumper labels
Universal input label Jumper label on circuit board
IN1 J2
IN2 J3
IN3 J5
IN4 J6
IN5 J7
IN6 J8
IN7 J9
IN8 J10
IN9 J11
IN10 J12
IN11 J13
IN12 J14
IN13 J16
IN14 J17
IN15 J18
IN16 J19