GD350A series high-performance multifunction VFD
-319-
Category
Sign
Name
Function
3. Deviation ±1%, 25°C, full measuring range
Relay
output
PRO1A
NO contact of
relay 1
1. Contact capacity: 3A/AC 250 V, 1 A/DC 30
V
2. Do not use them as high-frequency digital
outputs.
PRO1B
NC contact of
relay 1
PRO1C
Common
contact of relay
1
PRO2A
NO contact of
relay 2
PRO2C
Common
contact of relay
2
For details about the operation of programmable expansion cards, see the
GD350A Series VFD Auto
Station Programmable Expansion Card Operation Manual
.
A.6 Communication card function description
A.6.1 Bluetooth communication card––EC-TX501 and WIFI communication card——EC-TX502
Definitions of indicators and function buttons:
Indicator/button
Name
Function
LED1/LED3
Bluetooth/WIFI state
indicator
The 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
