19
Analog Mode
In analog mode the pump will accept a milliamp signal and produce a pump
speed proportional to the signal level received. The input resistance of this
signal is 250
Ω
. The pump’s response can be fine-tuned by variable set points to
meet system requirements.
CAUTION:
Open loop signal voltage must not exceed 25 VDC. If the signal
voltage is greater than 25 VDC, power down the signal source prior to
connection and any open loop condition.
Connecting an analog signal device
Disconnect AC power to the pump. Remove the four screws from the terminal
block cover and remove the cover. Remove the cord nut and bushing from the
terminal block cover. Remove the terminal block from the connector. Slide the
nut and bushing over the external control cable and insert the cable through the
terminal block cover. Strip 1/4” insulation from conductors and connect the
positive side to terminal 5 and the negative side to terminal 8. (See schematic
below.)
Output Power
The control circuit of the Y control module has the ability to provide 12 VDC to
power a loop powered device. Wiring is as follows:
4
2
3
5
6
7
8
Power
Ground
Analog Input
Sensor Power
DC 12V
20 mA max.
+
+
-
-
White
NEU
Black
HOT
Green
4
5
6
7
8
+
-
Loop
Powered
Device
4-20mA
OUT
Summary of Contents for EH Series
Page 46: ...Notes...
