Key-Disp KD31M - Connection Layout; Operation Cautions

5
6) The fault or damage of the display is caused by the force majeure (e.g. fire, earthquake, etc,).
Connection layout
Connector line sequence
Display-side Connector Display-side adapter Switch
wiring
Line sequence table
Line sequence
Color
Function
1
Red（VCC）
+
2
Blue(K)
Lock
3
Black(GND)
-
4
Green(RX)
RX
5
Yellow(TX)
TX
■Some wire use the water-proof connector, users
are not able to see the inside color.
Operation Cautions
Be care of the safety use. Don’t attempt to release the connector when battery is on power.
◆Try to avoid hitting.
◆Do not modify system parameters to avoid parameters disorder
◆Make the display repaired when error code appears.
Attached list 1：Error code definition
Error Code
Definition
E21
Current Abnormality
E22
Throttle Abnormality
E23
Motor Abnormality
E24
Motor Hall Signal Abnormality
E25
Brake Abnormality
E30
Communication Abnormality