Setting Up The Slide Switches - Fuji Electric frenic-hvac Instruction Manual

2.2.6 Setting up the slide switches

Switching the slide switches located on the control PCB (see Figure 2.4) allows you to customize the operation
mode of the analog output terminals, digital I/O terminals, and communications ports.
To access the slide switches, remove the front cover so that you can see the control PCB.
(
For details on how to remove the front cover, refer to Section 2.2.1.
Table 2.6 lists function of each slide switch.
Switch
SW1 Switches the service mode of the digital input terminals between SINK and SOURCE.
Switches the terminating resistor of RS-485 communications port on the inverter ON and OFF.
SW2
(RS-485 communications port 2 on the terminal block)
Switches the terminating resistor of RS-485 communications port on the inverter ON and OFF.
SW3
(RS-485 communications port 1 for connecting the keypad)
SW4 Switches the function of terminal [FM1] between VO1 and IO1.
SW5 Switches the function of terminal [C1] between C1 and PTC.
SW6 Switches the function of terminal [FM2] between VO2 and IO2.
Figure 2.4 shows the location of slide switches on the control PCB.
Switch configuration and factory default
destination
Figure 2.4 Location of the Slide Switches
on the Control PCB
To move a switch slider, use a tool with a narrow tip (e.g., a tip of tweezers). Be careful not to touch
other electronic parts, etc. If the slider is in an ambiguous position, the circuit is unclear whether it is
turned ON or OFF and the digital input remains in an undefined state. Be sure to place the slider so
that it contacts either side of the switch.
Table 2.6 Function of Slide Switches
Function
SW1 SW2
Shipping
4A
OFF
4C
SINK
SOURCE
4E
2-10
SW3 SW4 SW5
VO1 C1
OFF
SW6
VO2