Multiquip LS400, LS500 manual Connections to Digital Control Box J3 and J4 Connectors 1

LS400/LS500 PUMP — WIRING DIAGRAM (CONTROL BOX)

A

	CONTROL
	REAR
A	BOX
	VIEW

J1

J2

J3

J4

J5

YELLOW

YELLOW WHITE WHITE

YELLOW

WHITE

YELLOW

	J3				J3
8	7	6	5	8	7	6	5
4	3	2	1	4	3	2	1
	J4				J4
8	7	6	5	8	7	6	5
4	3	2	1	4	3	2	1

	INSIDE					OUTSIDE
CONTROL				J3 MALE		CONTROL
	BOX			INTERFACE			BOX
				CONNECTOR
	P3			(YELLOW)				P3
	1							4
	2							3
	3							2
	4							1
	5							8
	6							7
	7							6
	8							5
					OUTSIDE
	A		INSIDE
		CONTROL			CONTROL			A
				BOX	BOX

NOT USED

NOT USED

SIGNAL

SIGNAL

NOT USED

NOT USED

+12 VDC

GND.

	A
B		PROXIMITY
16 AWG WHITE	C	SWITCH “B”
16 AWG BLUE
16 AWG BROWN	G
16 AWG GREEN
16 AWG BLUE		INDICATOR “RED” ACTIVE
		BETWEEN GND. 800 mV
16 AWG BROWN
		PROXIMITY
	F	SWITCH “A”
	BROWN	BLACK
		BLUE

NOT USED NOT USED

NOT USED

ENG SOL POWER 35A 1 SEC

OVER TEMP
PROX A
PROX B
PROX C
PROX D
POWER	B
GROUND
AUTO LUBE	CONTROLLER
FLOW A 12VDC	BLACK
FLOW B 12VDC	POTTED

BOX

BROKEN FAN BELT

	HEAT EXCHANGER
	“COOLING FAN”
FLOW CONTROL	D

P4

	1
ORANGE	2
BLUE
	3
	4
12VDC	5
	6
BLUE
	7
	8

	A			A
		17
			15/54
			30	50A
IGNITION			58 19
SWITCH

1

UNLOADER

P4

4

3A

2B

616 AWG RED 12VDC

516 AWG BLACK

INSIDE	OUTSIDE
CONTROL	CONTROL	A
BOX	BOX
J4 MALE
INTERFACE
CONNECTOR		E
(WHITE)

ACCUMULATOR

DUMP VALVE “UNLOADER”

		+12 VDC
		14 AWG RED
C
H		+12
V-BELT BREAK		GND.
SWITCH		14 AWG BLACK
1	2

NOTE:

WHEN MEASURING VOLTAGE

AT CONNECTOR P4 PINS 2 AND 3.

1PLACE NEGATIVE LEAD OF VOLTMETER TO FLOW CONTROL BODY (GROUND).

CONNECTIONS TO J3 AND J4 CONNECTORS ON

DIGITAL CONTROL BOX (LS400 AND LS500)

Figure 63. Connections to Digital Control Box - J3 and J4 Connectors ( 1 of 2)

PAGE 72 — MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11)