ABB ZMU-02

PPC907BE101 The power that runs the module itself comes from the power supply in the Bus lnterface UnitA separate external 240VAC supply is needed to power each isolated group of input devices.Module inputs respond to voltage levels from 0 VAC to 265 VACLEDS

Individual logic-side LEDs, visible through the transparent portion of the module top, indicate theon/off status of each input. The PWR LED is on PPC907BE101 when field and backplane power are present.Host Interface

Intelligent processing for this module is performed by the Bus lnterface Unit or elsewhere in thesystem. This includes configuring features such as input defaults and fault reporting. The modulehas 8 bits (one byte) of discrete input data. A Bus lnterface Unit is required to provide this inputdata to the host and/or local processor.

A network of resistors and capacitors establishes input thresholds and provides input filtering.Optoisolators provide isolation between the field inputs and the module's logic components. Datafrom a 16 inputs is placed into a data buffer The module's circuit LEDs show the current states ofthe 16 inputs in this data buffer.

Parallel-to-serial converters change input data from the data buffer into the serial format needed bythe Bus Interface Unit.

PPC907BE101 After checking the Board lD and verifying that the module is receiving appropriate logic powerfrom the Bus lnterface Unit (which is reflected by the state of the module's Power LED), the Bus

Interface Unit then reads the filtered, converted input data./0 Terminal Block wiring assignments for this module are shown below. lnputs 1 to 8 are oneisolated group and inputs 9 to 16 are another isolated group. lf isolation is needed, each isolatedgroup must have its own power supply. lf isolation is not needed, one power supply can be used forall sixteen inputs.

The Terminal Block with box terminals has 25 terminals for each module, each of which

accommodates one AWG #14 (ava 2.1mm2

cross section).

The l/0 Terminal Block with Connectors has one 20-pin male connector per module. The matingconnector is Amp part number 178289-8, Any tin-plated contact in the AMP D-3000 series can beused with the connector (Amp part number 1-175217-5 for high contact force receptacle for 20-24gauge(0.20-0.56mm

9

) wires), 1-175218-5 for high contact force receptacle for 16-20 gauge (0.56.

1.42mm2)).

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The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts isreliable. All the spare parts provided enjoy a one-year super long warrantySpot stock, fast response, reduce user capital investment, improve spare parts utilization, spare parts replacement!

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