Status Led; Installation - LS RS485/Modbus-RTU User Manual

3.2. Status LED

Indicates the option card works normally.
CPU LED
Receiving 485 signal
RXD LED
Sending 485 signal
TXD LED
Blinking intermittently
Blinking simultaneously with CPU LED
ERR LED
Blinking oppositely to CPU LED
4.

INSTALLATION

4.1. Installing RS485/Modbus-RTU card
① Connect RS485/Modbus-RTU communication card connector to the option connector inside the
inverter control board. (See Figure 1, 2). Make sure that the support is well connected. Is the
position of the support is not right, it means that the option card is not connected right.
② Power up the inverter after verifying the option card is installed properly.
③ When powering up the inverter, CPU LED is blinking per second after all LEDs blink one after
another.
④ If "CPU LED" is not blinking, power down the inverter swiftly and check for the proper installation of
the option card.
(Caution: The inverter and option card may get damaged in case that power is applied to the
inverter for a long time when CPU LED is not blinking.)
* If this problem occurs continuously, contact LS distributors.
⑤ Check displayed < COM-01 > for SV-iP5A and < EXT_01 > for SV-iV5 are set to RS485.
⑥ Set the parameters as below when the above steps are all done.
Figure 2. SV-iV5 RS485/Modbus-RTU Option Card Installation
Receiving wrong DATA (Normal operation)
DPRAM communication malfunction
Network Connection TimeOut
4