Gree GMV-224WM/B-X, Service Manual

Page: 334 / 375

GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
331
Description
Printed Mark
Terminal Pin Description
S1(1)
S1(2)
DIP switch
1/2: without the
matched
resistance As shown in the figure above,
when the switch is set to the
end ―ON‖, it ind
icates the
matched resistance is added;
when the switch is set to the
digital end ―1/2‖, it indicates the
matched resistance is not
added. The later is the default.
ON: with the
matched
resistance
G1
G2 Wiring
terminal G1: CAN_H
G2: CAN_L Two-wire line, used to connect
the CAN bus.
4.2.4 I/O Module
Printed
Mark
Terminal Pin Description
8 (+)
9 (-)
Wiring
terminal
PIN8:+24VDC
24V /DC
PIN9:GND
E0(0)
E1(1)
E/A2(2)
E/A3(3)
Wiring
terminal
0: fire alarm input
Two-wire signal line. 0 is the fire alarm
input and other I/Os can be defined by
the user.
1, 2, 3: input
E/A4(4)
E/A5(5)
A6(6)
A7(7)
Wiring
terminal
4, 5, 6, 7: output
Two-wire signal line. I/Os can be
defined by the user.
Note: when the input voltage between DI and GND is 24V, the DI interface is enabled; when the
output voltage between DO and GND is 24V, the DO interface is enabled.
4.3 Indicating LEDs
4.3.1 Power Indicating LED
As shown in the figure below, the printed mark ―Power‖ represents the power indicating LED. When it
turned to red, it indicates the BACnet gateway is powered on; when it turns off, it indicates the BACnet
gateway is powered off.
4.3.2 PCD 3.M6340 Indicating LED