S Series FW 3.02.02
www.stenner.com
76
4-20mA OUTPUT
page 1 of 2
The pump is equipped with a 4-20 mA output signal.
This signal corresponds proportionally to pump speed with 0% pump
speed equaling 4.0mA and 100% pump speed equaling 20.0mA. The
signal response is not adjustable by the user.
CONNECTIONS
continued
The loop impedance must be less than 300 ohms.
Do not short the 4-20mA output loop. Doing so will cause the pump to shut off and may damage
the pump.
To ensure proper signal output, always calibrate the output signal.
Connection Terminals
• Connect load positive to 4-20mA OUT (+), position #15 on the bottom row.
• Connect load common to 4-20mA OUT (-), position #14 on the bottom row.
0
25
50
75
100
% Pump Speed
20
18
16
14
12
10
8
6
4
m
A
O
u
tp
u
t
4-20mA Output
from pump
Load
+
–
+
–
Output
Relay
2
Output
Relay
1
Standby
(
+
)
Standby
(
−
)
4-20mA
IN
(
+
signal)
Pulse/
PPM/Hall
signal
Hall
+
12VDC
Output
Relay
2
Output
Relay
3
Output
Relay
3
4-20mA
OUT
(
+
)
Leak
Detect
External
Leak
Detect
External
Flow
Detect
Flow
Detect
(
−
)
Flow
Detect
+
12VDC
1
2
3
4
5
6
8
10
11
12
13
15
16
17
18
19
20
Output
Relay
1
The pump sources the voltage for the output
signal loop at 24VDC. The pump will control the
magnitude of current on the loop (from 4 to
20mA) according to the speed that the pump is
running at. The maximum loop impedance (load
on the output signal loop) is 300 ohms, which
includes the load plus any resistance due wire
length, connections, etc.
4-20mA
OUT
(
−
)
14
0-10VDC
(
+
signal)
7
Signal
Common
9
