Toptech MultiLoad II EXL User Manual

CHAPTER 5– CONNECTING FIELD DEVICES TO THE I/O BOARD
36 MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
This list is not exhaustive, but contains those most frequently used:
TYPE I/O
CIRCUIT
SYMBOL
FUNCTION
AC Output
All AC outputs may be used as line voltage ON/ OFF control.
AC Output
If a digital valve control is used, PORT 2 is dedicated to control
the (N.O.) upstream solenoid.
AC Output
If a digital valve control is used, PORT 3 is dedicated to control
the (N.C.) downstream solenoid.
AC Output
S
1
If an additive injection control is used, the numbered AC output
must be paired with the corresponding numbered DC input.
DC Input
+
-
All DC inputs may be used as general digital signal inputs.
DC Input
+
-
A
0°
If a product meter pulser is used, PORT 4 is dedicated to the A
channel (single or optional quadrature).
DC Input
+
-
B
90°
If a product meter pulser is used, PORT 5 is dedicated to the B
channel (of optional quadrature).
DC Input
+
-
1
If an additive injection control is used, the numbered DC input
must be paired with the corresponding numbered AC output.
AC Input
L
N
All AC inputs may be used as line voltage digital inputs
(typically permissives).
DC Output
+
-
All DC outputs may be used as general digital outputs.
RTD Input
100Ω
°C
Pt
°F
The RTD input is reserved for MultiLoad temperature
compensation.
4-20 mA Analog
Input
i
4-20mA
%
The analog input can be used with configurable MultiLoad
inputs such as density, pressure, or temperature.
4-20 mA Analog
Output
i
4-20mA
%
(0 Vdc)
12-30 Vdc
The analog output can be used with configurable MultiLoad
outputs such as Analog Control Valve or Analog Pump.

Toptech MultiLoad II EXL Specifications

General

Brand	Toptech
Model	MultiLoad II EXL
Category	Controller
Language	English