Fuji Electric FRENIC-AQUA series, User Manual

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2.3.2 Setting up the slide switches
Before changing the switches, turn OFF the power and wait at least ten minutes. Make sure that the LCD
monitor is turned OFF. Further, make sure, using a multimeter or a similar instrument, that the DC link
bus voltage between the terminals P(+) and N(-) has dropped to the safe level (+25 VDC or below).
An electric shock may result if this warning is not heeded as there may be some residual electric
charge in the DC bus capacitor even after the power has been turned OFF.
Switching the slide switches located on the control PCB allows you to customize the operation mode
of the analog output terminals, digital I/O terminals, and communications ports. The locations of those
switches are shown in Figure 2.11.
To access the slide switches, remove the front cover so that you can see the control PCB.
Table 2.1 lists the function of each slide switch.
Table 2.1 Function of Each Slide Switch
Slide Switch Function
SW1 Switches the service mode of the digital input terminals between SINK and SOURCE.
- This switches the input mode of digital input terminals [X1] to [X7], [FWD] and
[REV] to be used as the SINK or SOURCE mode.
- Factory default: SINK
SW2 Switches the terminating resistor of RS-485 communications port on the inverter ON
and OFF. (RS-485 communications port 2, on the terminal block)
- If the inverter is connected to the RS-485 communications network as a terminating
device, turn SW2 to ON.
SW3 Switches the terminating resistor of RS-485 communications port on the inverter ON
and OFF. (RS-485 communications port 1, for connecting the keypad)
- To connect a keypad to the inverter, turn SW3 to OFF (Factory default).
- If the inverter is connected to the RS-485 communications network as a terminating
device, turn SW3 to ON.
SW4/SW6 Switches the output mode of the analog output terminal [FM1]/[FM2] between voltage
and current.
When changing this switch setting, also change the data of function code F29/F32.
[FM1] [FM2]
SW4 F29 data SW6 F32 data
Voltage output (Factory default) VO1 0 VO2 0
Current output IO1 1, 2 IO2 1, 2
SW5 Switches the property of the analog input terminal [C1] between analog setting current
input and PTC thermistor input.
When changing this switch setting, also change the data of function code H26.
SW5 H26 data
Analog setting current input
(Factory default)
C1 0
PTC thermistor input PTC 1 (alarm) or 2 (warning)
Output mode
Output mode