6.7 COM Connection
COM communication interface, which can be upgraded to man-machine
communication interface.Output voltage, current, frequency, fault information
and other operational information can be transferred to PC or other monitoring
equipment through these interfaces.
COM Connection Steps:
Ø
COM PIN Definition
Ø
Ø
Application Occasion
COM is a standard communication interface which can transmit the realtime
data from inverter to PC or other monitoring devices.
6.8 DRM Connection
DRM Connection Steps:
Ø
Electrical Connection
Electrical Connection
38
39
Please refer to BMS connection steps(Page32) for COM connection. Please kindly
note that the PIN definition and port position may be slightly different.
Please refer to BMS connection steps (page30) for DRM connection. Please kindly
noted the PIN definition and port position will be slightly different.
COM Port
COM
DRM is provided to support several demand response modes by emitting control
signals as below.
DRM1/5
DRM2/6
DRM3/7
DRM4/8
+3.3V
DRM0
GND
GND
1
2
3
4
5
6
7
8
1
8
Mode
DRM0
Operate the disconnection device
Do not generate power
Do not generate at more than 75% of rated power AND
Sink reactive power if capable
Requirement
DRM5
Do not generate at more than 50% of rated power
Increase power consumption
(subject to constraints from other active DRMs)
Do not consume at more than 75% of rated power AND
Source reactive power if capable
DRM6
DRM7
DRM8
Increase power generation
(subject to constraints from other active DRMs)
Do not consume power
Do not consume at more than 50% of rated power
DRM1
DRM2
DRM3
DRM4
Note: Only PIN6(DRM0) and PIN1(DRM1/5)are available now, and other PIN
functions are being developed.
DRM Port: The third RJ45 port from left side
DRM/Meter Port
D
R
M
/
M
e
te
r
DRM
X
X
GND
485A
485B
X
X
X
1
2
3
4
5
6
7
8
1
8
