2.2 Wiring
2-40
2.2.7 Switching switches
Switch all switches after first waiting for at least 5 minutes for FRN0115G2S-2G / FRN0060G2□-4G or lower,
or 10 minutes for FRN0146G2S-2G / FRN0075G2□-4G or higher after turning off the power, ensuring that the
LED monitor and charge lamp are off, and using a device such as a tester to ensure that the DC intermediate
circuit voltage across main circuit terminals P(+) - N(-) has dropped to a safe level (+25 VDC or less).
Failure to observe this could result in electric shock.
The I/O terminal specification can be changed, such as switching the analog output form, by operating the slide
switches on the printed circuit board (see Fig. 2.2-25 Switch positions).
To change all slide switches remove the front cover to expose the control PCB. (With FRN0146G2S-2G /
FRN0075G2□-4G or higher inverters, open the keypad case also.)
Refer to Chapter 2 “2.2.2 Removal and attachment of the front cover and wiring guide” for details on how to
remove the front cover, and to open/close the keypad case.
A functional description of the slide switches is given in “Table 2.2-15” below.
Table 2.2-15 Functional description of slide switches
<Switch to change sink/source setting of digital input terminals>
• This switch determines the type of input (sink or source) to use for digital input terminals [X1]
to [X9], [FWD], and [REV].
• The switch is set to the SINK side by factory default *1. Unless there is no particular mention
of it in this manual, this description will be based on the premise that the switch is set to the
SINK side.
*1 The factory default setting for SW1 of FRN-G2E-4G is “SOURCE”
<Terminating resistor changeover switch for RS-485 communication (RS-485 communication
port 2 (on terminal board))>
• Move the switch to the ON side when RS-485 communication is used and the inverter is
located at either end of the communication network.
<Terminating resistor changeover switch for RS-485 communication (RS-485 communication
port 1 (for keypad connection))>
∙ Move the switch to the ON side when RS-485 communication is used and the inverter is
located at either end of the communication network.
<Terminal [FM1] voltage/current output changeover switch>
This switch changes the output type for terminal [FM1]. When operating this switch, also
change function code F29.
Table 2.2-16
Voltage output (factory default)
1 (4 to 20 mA)
2 (0 to 20 mA)
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