Hitachi X200 Series instruction manual Using Intelligent Input Terminals

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Using Intelligent Input Terminals

Terminals [1], [2], [3], [4], and [5] are identical, programmable inputs for general use. The input circuits can use the inverter’s internal (isolated) +24V field supply or an external power supply. This section describes input circuits operation and how to connect them properly to switches or transistor outputs on field devices.

The X200 inverter features selectable sinking or sourcing inputs. These terms refer to the connection to the external switching device–it either sinks current (from the input to GND) or sources current (from a power source) into the input. Note that the sink/source naming convention may be different in your particular country or industry. In any case, just follow the wiring diagrams in this section for your application.

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The inverter has a short bar for configuring the choice of sinking or sourcing inputs. To access it, you must remove the front cover of the inverter housing. In the figure to the top right, the short bar is shown as attached to the logic terminal block (connector). For EU and US version (suffix –xFE, and –xFU), it is originally located as source type logic. If you need to change it to the sink type connection, remove the short bar and connect it as shown in figure at right (bottom).

Logic inputs

5 4 3 2 1 L PLC P24

Short bar

Source logic connection

5 4 3 2 1 L PLC P24

Short bar

Sink logic connection

Operations Monitoring

CAUTION: Be sure to turn OFF power to the inverter before changing the short circuit bar position to change SR/SK. Otherwise, damage to the inverter circuitry may occur.

[PLC] Terminal Wiring – The [PLC] terminal (Programmable Control System terminal) is named to include various devices that can connect to the inverter’s logic inputs. In the figure to the right, note the PLC terminal and the nearby short bar. Locating the short bar at [PLC] and [L] makes the input logic to source type, which is the default set for EU and US versions. In this case, you connect input terminal to [P24] to make it active. And if you locate the short bar at [PLC] and [P24], the input logic will be sink type. In this case, you connect the input terminal to [L] to make it active.

Short bar for sink logic

P24

PLC

1

5

L

Short bar for source logic

X200 inverter

Input common 24V

+

-

Input circuits

Logic GND

The wiring diagram on the following pages show the four combinations of using sourcing or sinking inputs, and using the internal or an external DC supply.