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- Route the wiring of the control terminals as far from the wiring of the main circuit as
possible. Otherwise electric noise may cause malfunctions.
- Fix the control circuit wires inside the inverter to keep them away from the live parts of the
main circuit (such as the terminal block of the main circuit).
2.3.7 Setting up the jumper switches
Before changing the jumper switches, turn OFF the power and wait at least five minutes.
Make sure that the LED monitor is turned OFF.
An electric shock may result if this warning is not heeded as there may be some
residual electric charge in the DC link bus capacitor even after the power has been
turned OFF.
Switching the jumper switches (shown in Figure 2.11) allows you to customize the
specifications of the digital I/O terminals and the RS-485 communication terminating resistor.
To access the jumper switches, remove the terminal block covers.
For details on how to remove the terminal block covers, refer to Section 2.3.1.
Table 2.8 lists function of each jumper switch.
Table 2.8 Function of Jumper Switches
Switch
SINK/SOURCE switch for digital input terminals
①
SW10
• To use digital input terminals [X1] to [X3], [FWD] and [REV] in the SINK mode, set
• To switch between SINK and SOURCE modes, use a mini needle-nose pliers or
Terminating resistor ON/OFF switch for RS-485 communication
②
SW9
• To connect an optional remote keypad, set a jumper in the OFF position (factory
• If the inverter is connected to the RS-485 communications network as a termi-
• To switch the terminating resistor ON and OFF, use a mini needle-nose pliers or
Function
a jumper in the sink position, to use them in the SOURCE mode, set a jumper in
the source position. (See Figure 2.11.)
the similar tool to change the mounting position of the jumper.
default).
nating device, set a jumper in the ON position.
the similar tool to change the mounting position of the jumper.
2-17
- Quick Links:
- Chapter 5 Function Codes
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