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CAUTION
• Do not use the empty terminals (NC) of the control circuit. Doing so may lead to damage of the converter unit and the
inverter.
• Always connect the terminal RDA of the converter unit and the terminal MRS (X10) of the inverter, and the terminal SE
of the converter unit and the terminal SD (terminal PC in the source logic) of the inverter. Not doing so may lead to
damage of the converter unit.
2.6.3
Control logic (sink/source) change
Switch the control logic of input signals as necessary.
To change the control logic, change the jumper connector position on the control circuit board.
Connect the jumper connector to the connector pin of the desired control logic.
The control logic of input signals is initially set to the sink logic (SINK) for the type FM inverter.
The control logic of input signals is initially set to the source logic (SOURCE) for the type CA inverter.
(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
NOTE
• Make sure that the jumper connector is installed correctly.
• Never change the control logic while power is ON.
Sink logic and source logic
• In the sink logic, a signal turns ON when a current exits from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.
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2. INSTALLATION AND WIRING
2.6 Control circuit
Jumper connector
Jumper connector
Jumper connector
SOURCE
SINK
For sink logic
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