Page 8
2.3 Input Power Connections
Risk of electric shock – cord connected models are supplied with a grounding
conductor and grounding-type attachment plug. To reduce risk of electric shock, be
certain that it is connected only to a properly grounded, grounding-type receptacle.
Three power cord plug types available.
Power cord length is 6 feet (3.83 meters)
WARNING
!
Be certain to connect pump to proper supply voltage. Using incorrect voltage will damage pump and may result in
injury. Voltage requirement is printed on pump serial label.
!
Input power range is 100VAC to 240VAC 50/60 Hz.
!
Voltage Selection is automatically detected and adjusted by power supply. No mechanical switch necessary.
!
Use voltage your power cord is rated for.
!
Cord connected models are supplied with a ground wire conductor and a grounding type attachment plug (power
cord). To reduce risk of electric shock, be certain that power cord is connected only to a properly grounded,
grounding type receptacle.
!
Permanently connected models must be properly grounded. Be certain that a grounding conductor is connected
to terminal T11-1 located in the wiring compartment.
!
Wiring compartment access requires removing 4 screws. A 5/32” (.156”) allen wrench is required (included).
!
Be sure all wiring compartment cable glands and hole plugs are properly installed and sealed.
!
Never strap control (input / output) cables and power cables together.
!
Power Interruption:
This pump has a user programmable auto-restart feature which will either restore the pump
to the operating state it was in when power was lost or require a user action to restart.
Note:
When in doubt regarding your electrical installation, contact a licensed electrician.
Electrical connections and grounding (earthing) must conform to local wiring codes.
Be certain that a grounding conductor is connected to terminal T11-1 located in the
wiring compartment.
WARNING
115V 60Hz
NEMA 5/15 (USA)
max: 125V AC
230V 60Hz
NEMA 6/15 (USA)
max: 250V AC
240V 50Hz
CEE 7/VII (EU)
max: 250V AC
QTY. DESCRIPTION
2
.50 INCH (12.7 mm) LIQ-TIGHT HOLE PLUGS (MAT’L = NEOPRENE), PRE-INSTALLED
3
.875 INCH (22.2 mm) LIQ-TIGHT HOLE PLUGS (MAT’L = NEOPRENE), 2 PRE-INSTALLED
2
.50 INCH (12.7 mm) LIQ-TIGHT CONNECTORS FOR PASS THRU CORDS (MAT’L = NYLON)
ACCEPTABLE CABLE DIAMETER .118 TO .255 INCH (3.0 TO 6.5 MM), NOT INSTALLED
3
.875 INCH (22.2 mm) METALLIC LIQ-TIGHT CONNECTORS FOR PASS THRU CORDS (MAT’L = NYLON)
ACCEPTABLE CABLE DIAMETER .200 TO .395 INCH (5.1 TO =10.0 MM), 1 PRE-INSTALLED WITH POWER CORD MODELS
Cable and conduit connectors included
5.99 in.
(152.1 mm)
Ø .50
(12.7 mm)
2-PLCS.
Ø .84 in.
(21.3 mm)
3-PLCS.
WIRING COMPARTMENT COVER
POWER CORD OPTIONS
Risk of electric shock - Disconnect electricity before removing the wiring
compartment cover.
WARNING
MD-3
2
METALLIC LIQ-TIGHT CONNECTORS FOR .50 INCH FLEXIBLE CONDUIT (MAT’L = DIE CAST ZINC), NOT INSTALLED
Page 9
OUTPUT
INPUT
3
1
2
T3
DRY
RMT
COM
1
2
3
T1
PULSE
GND (-)
4-20 (+)
0-10 (+)
+15 VDC
1
2
T2
T4
3
1 2
(+)
FVS
SIG
(-)
2
1
FREQ.
(-)
(+)
T5
1 2
4-20
mA
T6
POWER
FUSE 5A SLOW BLOW
(20 X 5MM)
F1
2
3
1
GROUND
N EUTRAL
(COMMON)
LINE
(HOT)
T11
N.C.
COM
N.O.
N.O.
COM
N.C.
CC3
CC2
T8
T9
3
1
2
3
1
2
3
1
2
CC1
N.O.
COM
N.C.
T10
1 2 3
N.C. COM.
N.O.
RELAY
OUT
T7
(-)
(+)
2.4 Wiring Terminals and I/O Schematics
INPUT:
4-20 mA
INPUT:
0-10V DC
INPUT:
FREQUENCY, AC
SINE WAVE, TTL,
CMOS
FUNCTION
TERMINAL PIN #
RATING
ELECTRICAL SP.
BLOCK DIAGRAM
T1
T1
T1
T1
T2
T1
INPUT:
FVS SYSTEM
(FLOW VERIFICATION
SENSOR)
FV SENSOR ONLY
T4
T4
T4
(+) POSITIVE
3
2
1
2
1
2
1
2
3
(-) NEGATIVE
(+) POSITIVE
(-) NEGATIVE
(+) POSITIVE
(-) NEGATIVE
(+) POSITIVE
SIGNAL
(-) NEGATIVE
INPUT:
REMOTE
START / STOP
(DRY CONTACT C.)
INPUT:
REMOTE
START / STOP
(WET CONTACT C.)
OUTPUT:
4-20 mA
OUTPUT:
FREQUENCY -
OPEN COLLECTOR
OUTPUT:
RELAY, 6 AMP
OUTPUT:
CONTACT
CLOSURE 1
INPUT:
POWER
OUTPUT:
CONTACT
CLOSURE 2
OUTPUT:
CONTACT
CLOSURE 3
FUSE
T3
T3
1
2
T3
T3
2
3
T6
T6
2
1
T5
T5
2
1
(+) POSITIVE
(-) NEGATIVE
(+) POSITIVE
(-) NEGATIVE
T7
1
T7
T7
2
3
NORM. CLOSED
COMMON
NORM. OPEN
T8
1
T8
T8
2
3
NORM. OPEN
COMMON
NORM. CLOSED
T9
1
T9
T9
2
3
NORM. OPEN
COMMON
NORM. CLOSED
T10
1
T10
T10
2
3
NORM. OPEN
COMMON
NORM. CLOSED
T11
1
T11
T11
2
3
GROUND
NEUTRAL
LINE (HOT)
F1
NA
5 AMP
120 OHM
IMPEDANCE, NON
POWERED LOOP
3 TO 30 VOLT DC
1 AMP MAX.
120 OHM
RESISTANCE
ACTIVE LOOP
OPEN COLLECTOR
0-1000 Hz
50% DUTY CYCLE
Form C
6 AMP MAX AT
250 VAC,
5 AMP MAX AT
30 VOLT DC
Form C
1 AMP MAX AT
125 VOLT AC,
0.8 AMP MAX AT
30 VOLT DC
Form C
1 AMP MAX AT
125 VOLT AC,
0.8 AMP MAX AT
30 VOLT DC
Form C
1 AMP MAX AT
125 VOLT AC,
0.8 AMP MAX AT
30 VOLT DC
5A SLOW BLOW
(20 X 5MM)
1
2
3
T1
PULSE
GND (-)
4-20 (+)
1
2
3
T1
PULSE
GND (-)
4-20 (+)
0-10 (+)
+15 VDC
1
2
T2
0-1000 HZ MAX.
(-) NEGATIVE
(+) POSITIVE
(+) POSITIVE
(-) NEGATIVE
NO VOLTAGE
96 TO 264 VOLT AC,
50 / 60 HZ
A3 = 220W
A4 = 350W
1
2
3
T1
PULSE
GND (-)
4-20 (+)
(+)
(-)
(+)
(-)
(+)
(-)
T4
3
1 2
(+)
FVS
SIG
(-)
RED (+)
BARE
BLACK (-)
3
1
2
T3
DRY
RMT
COM
3
1
2
T3
DRY
RMT
COM
(+)
(-)
(+)
(-)
2
1
FREQ.
(-)
(+)
T5
DIGITAL PULSE
RECEIVER CIRCUIT
1.5K OHM
(+)
(-)
EXTERNAL SOURCE
6-30V DC
1 2 3
N.C. COM. N.O.
RELAY
OUT
T7
NO
C
NC
SWITCH LOAD
6 AMP MAX @ 250V AC
5 AMP MAX @ 30V DC
2
3
1
GROUND
N EUTRAL
(COMMON)
LINE
(HOT)
T11
N.C.
COM
N.O.
T8
3
1
2
CC1
N.O.
COM
N.C.
CC2
T9
3
1
2
CC3
3
1
2
N.O.
COM
N.C.
T10
NO
C
NC
SWITCH LOAD
1 AMP MAX @ 125V AC
0.8 AMP MAX @ 30V DC
NO
C
NC
C
NC
NO
SWITCH LOAD
1 AMP MAX @ 125V AC
0.8 AMP MAX @ 30V DC
SWITCH LOAD
1 AMP MAX @ 125V AC
0.8 AMP MAX @ 30V DC
EXTERNAL DEVICE
3 TO 30V DC
OPEN CIRCUIT
IMPEDANCE MUST
BE GREATER THAN
50K OHM
BLUE-WHITE
FVS SENSOR
0-10V DC
TRANSMITTER
SOURCE
FREQUENCY
TRANSMITTER
SOURCE
ACTIVE 4-20mA
TRANSMITTER
SOURCE
2
1
4-20mA
(-)
(+)
T6
4-20mA RECEIVER
600 OHM LOAD MAX.
(+)
(-)
96 TO 264 VOLT AC,
50 / 60 HZ
A3 = 220W
A4 = 350W
Risk of electric shock - All
wiring must be insulated
and rated 300V minimum.
WARNING
MD-3
Terminals T1 thru T10
Plug type
16 - 24 AWG
Power Input Terminal T11
Plug type
14 - 30 AWG
T4
T4
T4
1
2
3
(+) POSITIVE
SIGNAL
(-) NEGATIVE
T4
3
1 2
(+)
FVS
SIG
(-)
SIGNAL
NEGATIVE (-)
BLUE-WHITE
MICRO-FLO
FLOWMETER
PULSE OUTPUT
INPUT:
FVS SYSTEM
(FLOW VERIFICATION
SENSOR)
FS or FP MICRO-FLO
FLOWMETER ONLY
1
2
3
T1
PULSE
GND (-)
4-20 (+)
(OPTIONAL PUMP #2)
Single or dual pump (series)
input. Loop voltage must not
exceed 24 Volts.
Shielded cables should be used on all input signal wires.
NOTE:
USE ONLY
DRY CONTACT FOR
REMOTE S/S WHEN
USING 4-20mA
INPUT OR 0-10V DC
