Liquid Controls LCRII Install E3650-E3651 Series - Manual (Page 6)

6
sPeCIfICaTIons
Input/output specifications
Power Requirements
+9 to +28 Volts DC @ less than 3 Amps for entire register
including solenoid valves. The system can operate with
either a positive or negative ground.
Pulse Input
+5 to +28 volt peak to peak square wave from an open
collector transistor. Quadrature or single channel with a
directional logic line. Frequency not to exceed 1500 Hz.
Scaled Pulse Output
The scaled pulse output reflects NET volume if temperature
compensation is being used or GROSS volume if
temperature compensation is not used. One pulse will be
output per least significant digit of the display, i.e., a system
set to read in 1/10 gallon will provide one pulse per 1/10
gallon (10 pulses per gallon). 150 mA sinking capability.
Auxiliary 1 Output and Auxiliary 2 Output
This output can be used to add features such as a pump
control or additive injection.
Aux 1 (Out 1)
Open drain output common to the negative power input
line. Sinking capability up to 1 Amp. Maximum circuit
voltage is same as power supplied to LCR-II.
Aux 2 (Out 2)
Open drain output common to the negative power input
line. Sinking capability up to 150 mA. Maximum circuit
voltage is same as power supplied to LCR-II.
Solenoid 1 Output (Out 7)/ Solenoid 2 Output (Out 6)
- Valve Control
Open drain transistor capable of sinking 2 Amps. Maximum
open circuit voltage is same as power supplied to LCR-II.
Solenoid 3 Output (Out 8) - Optical Air Eliminator
Open drain transistor capable of sinking 1 Amp maximum.
Open circuit voltage is same as power supplied to LCR-II.
Optical Sensor (In 5)
Three wire sensor, 0.05 Amp maximum.
OUT 4/OUT 5 to Remote Electronic Display
Open drain transistor capable of sinking 1 Amp. Maximum
open circuit voltage is same as power supplied to LCR-II.
Pulses are active LOW.
RS-232 I/O Port
Meets EIA–232E standard but only incorporates five
signaling lines:
•
Transmit data
• Receive data
• Request to Send or Data Set Ready
• Clear to Send or Data Terminal Ready
• Ground
The printer output port is compatible with the Epson™ TM
290 II, TM 295, TM 300, TMU 200D, TMU 295 printers,
Axiohm Blaster, and Okidata™ ML184 printer.
RS-485 I/O Port
Line terminations are SAE J1708 standard compatible
which allows up to 20 units per network.
RTD
Four wire platinum sensor with 100 Ω resistance at 0°C
and 138.5 Ω resistance at 100°C. Accuracy per IEC 751
Class B.
Printer (Epson Model 295)
Operating temperature: -22° to 104°F (-30° to 40°C).
Printer must use multi-part NCR forms and operate without
a ribbon (impact image on form) to operate in the low end
of temperature range.