Cotek SP-3000 - Remote Port (RJ-11) and Green Terminal

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3-2-1. Remote Port (RJ-11)
The SP Series Inverter can be compatible with CR-8, and CR-16
remote control via RS-232 Communication.
Before using the remote control, make sure the main switch on
inverter must be at “ REMOTE” position.
Pin Number
Signal Description ①
1
Reserved
--
2
GND
The same polarity as the battery negative
side
3
RXD
RS232 RXD
4
TXD
RS232 TXD
5
RMT
Remote controller panel (positive)
6
VCC
Internal power for remote controller
Table 28. SP Series Remote Port : RJ-11
3-2-2. Remote Control Green Terminal
Remote control green terminal ② may be connected to a Form C
relay for “FAULT” indication. When “FAULT” occurs, the relay
switches.
Figure 13. Remote control terminal
Item
Description
Item
Description
1
Dry contact
(Normal Open)
4
Enable+ (ENB)
2
Common
5
Enable- (ENB)
3
Dry contact
(Normal Closed)
6
Ground
Table 29. Dry contact terminal definition
Note! Pin-6 is the same polarity with battery negative
electrode.