Figure 39: Typical SPDB 25, 30 Series Junction Box Wiring Diagram

GRD

 

 

 

 

 

 

 

 

 

 

FROM CONTROLLER OUTPUT

(NEUTRAL)/(+24VDC)

 

FOR VACUUM SOLENOID

 

 

 

 

 

TO TERMINAL A1 (NEUTRAL)/(+24VDC)

 

 

 

 

 

ON MOTOR STARTER (M)

L1

 

L2

 

L3

FROM CONTROLLER OUTPUT

 

 

 

 

 

FOR BLOWBACK SOLENOID

 

 

A1

 

 

 

1

3

 

 

5

 

L2

 

 

L3

 

L1

 

 

 

 

13

 

 

 

 

 

M

A09

 

 

 

 

 

T1

T2

 

 

T3

14

2

4

 

 

6

 

 

 

 

A2

 

 

 

A2

 

 

 

 

J1

 

TEST

 

RESET

 

 

96

TRIPPED

 

95

 

97

 

98

FROM CONTROLLER OUTPUT

 

 

 

 

OL

 

 

 

 

 

FOR PUMP MOTOR STARTER

 

 

 

 

 

2

T

4

T

6

T

1

2

3

T1

 

T2

 

T3

TO MOTOR

 

 

 

 

 

(MTR)

 

 

 

 

 

KAY VALVE

LOCATED ON

PUMP

 

VACUUM

 

COMMON

TO

BLOWBACK

JUNCTION

BOX

 

TO UPPER VALVE

PROCESS AIRL1

CONNECTION

L2

L3

DISC

 

 

3 PHASE / 4 WIRE SERVICE AND

 

 

 

FUSED DISCONNECT SWITCH TO

FU

L1

M

OL BE PROVIDED BY CUSTOMER

 

 

T1

 

 

FU

L2

 

T2

 

 

 

 

MTR

5 H.P. PUMP

 

 

 

 

FU

L3

 

T3

 

 

 

 

 

 

(115VAC)/(0VDC)

VS

TO CONTROLLER INPUT FOR

PUMP HIGH-VACUUM

SUB PANEL LAYOUT AND CONNECTION DIAGRAM

(115V AC AND 24V DC)

(115V AC)

FROM CONTROLLER OUTPUT FOR MOTOR STARTER

FROM CONTROLLER OUTPUT FOR VACUUM PUMP SOLENOID

FROM CONTROLLER OUTPUT FOR PUMP BLOWBACK SOLENOID

VS

 

N.O.

 

 

 

0L

J1

 

 

 

M

 

 

 

96

95

A2

A1

SOL A

SOL B

TO CONTROLLER INPUT FOR PUMP HIGH VACUUM

(NEUTRAL)

VACUUM PUMP

MOTOR STARTER

VACUUM

SOLENOID ON PUMP

BLOWBACK SOLENOID ON PUMP

LEGEND

FIELD WIRING

 

 

 

 

 

INTERNAL

 

 

VS

 

 

WIRING

(0V DC)

 

 

 

 

 

 

 

 

WIRE LUG

 

 

N.O.

 

 

 

 

 

 

 

 

FROM CONTROLLER OUTPUT

 

0L

J1

 

 

 

 

1M

 

 

 

 

 

FOR MOTOR STARTER

96

95

A2

A1

SOL A

FROM CONTROLLER OUTPUT

FOR VACUUM PUMP SOLENOID

SOL B

FROM CONTROLLER OUTPUT

FOR PUMP BLOWBACK SOLENOID

CONTROL WIRING

JUNCTION BOX ON VACUUM PUMP

115V AC CONTROL VOLTAGE

TO CONTROLLER INPUT FOR

PUMP HIGH VACUUM

(+24V DC)

VACUUM PUMP

MOTOR STARTER

VACUUM

SOLENOID ON PUMP

BLOWBACK SOLENOID

ON PUMP

CONTROL WIRING

JUNCTION BOX ON VACUUM PUMP

24V DC CONTROL VOLTAGE

Note: This information is shown for reference only. Refer to the electrical Schematics that were supplied with your equipment and controls for specific wiring information.

Conveying System Mechanical Components Chapter 3: Installation

74 of 138

Page 74
Image 74
Sterling 882.00379.00 manual Typical Spdb 25, 30 Series Junction Box Wiring Diagram