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GD350A series high-performance multifunction VFD
-325-
The EC-TX505/511 communication card is user-friendly, adopting spring terminals.
Terminal resistor switch function description:
Terminal resistor switch Position
CAN_H and CAN_L are not
connected to a terminal resistor.
Right
ON
CAN_H and CAN_L are connected
to a terminal resistor of 120
Ω
.
Indicator definition:
Indicator
Name
Function
LED1
State indicator
This indicator is on when the expansion card is
establishing a connection with the control board; it
blinks periodically after the expansion card is
properly connected to the control board (the period is
1s, on for 0.5s, and off for the other 0.5s); and it is off
when the expansion card is disconnected from the
control board.
LED4
Power indicator
This indicator is on after the control board feeds
power to the communication card.
This indicator is on when the communication card is
in the working state.
It is off when a fault occurs. Check whether the reset
pin of the communication card and the power supply
are properly connected.
It blinks when the communication card is in the pre-
operation state.
It blinks once when the communication card is in the
stopped state.