The Interface Solution Experts 5
SPA
2
Programmable Current/Voltage
Limit Alarm Trips
Introduction
This is the user’s manual for Moore Industries’ SPA
2
(HLPRG): Programmable Current/Voltage Limit Alarm.
The instrument is configured using a combination of
front panel pushbuttons and a dedicated PC Configura-
tion Program. The SPA
2
monitors a process variable
and provides up to four, fully user-configurable contact
closure outputs that can be individually programmed to
trip whenever the input falls outside a user-set, high or
low trip point. The SPA
2
is typically used to activate a
warning light, bell or buzzer; or to initiate a system
shutdown. Thus, the instrument acts as a simple, but
highly reliable and effective means of monitoring and
safe-guarding a process.
About this Manual
Wherever you see a “
Note
”, “
Caution
” or “
WARNING
”
pay particular attention.
WARNING
- Hazardous procedure or condition that
could injure the operator.
Caution
- Hazardous procedure or condition that could
damage or destroy the unit.
Note
- Information that is helpful for a procedure,
condition, or operation of the unit.
Model and Serial Numbers
Moore Industries uses a system of model and serial
numbers to keep track of all of the information on
every unit it sells and services. If a problem occurs
with your SPA
2
, check for a tag affixed to the unit list-
ing these numbers. Supply the Customer Support rep-
resentative with this information when calling.
Inputs
The SPA
2
(HLPRG )(“
H
igh
L
evel”
Pr
o
g
rammable input),
handles either current inputs from 0-50mA (1mA
minimum span) or voltage inputs from 0-10V (250mV
minimum span).
Outputs
Alarms
The SPA
2
can be ordered with two (-2PRG) or four
(-4PRG) contact closure alarms. Each alarm can be
individually programmed.
2PRG
This is a two relay output with 5A@250Vac or 24Vdc,
50/60Hz non-inductive contact rating. The contact
arrangement is SPDT; however, the -2PRG output is
also available in a DPDT contact arrangement. All
relay contacts (NO, NC and COM) are available for
use. No jumpers are required.
4PRG
This is a four relay output with 5A@250Vac or 24Vdc,
50/60Hz non-inductive contact rating. The contact
arrangement is SPDT. All relay contacts (NO, NC and
COM) are available for use. No jumpers are required.
TX Power
A transmitter excitation power supply (24Vdc
±10%@24mA) is standard on the SPA
2
(HLPRG). You
may access this externally at the terminals shown in
Figure 3.
Options
Analog Output (-AO)
The SPA
2
can be equipped with a scaleable output
option to provide a 0-20mA or 0-10V output. -AO
equipped units are set by the user to provide either
current (user-configurable between source or sink) or
voltage.
Internal Settings
The password security function of the SPA
2
is con-
trolled by a single jumper inside the top of the unit
housing. You will need to remove the top cover in
order to access the jumper. Refer to Figure 2 for
location and jumper settings.
