©2025 Copeland LP.
026-1803 R13 Supervisor I&O User Guide 7 - 9
7.2.10 4AO Analog Output Board
The 4AO Analog Output Board (P/N 815-3030)
(Figure 7-11) is configured with four analog output
connections that provide a variable voltage signal to any of
four analog devices that may be controlled by a single
Supervisory Controller. Two 4-20mA outputs are provided for
channels 1 and 2. The 4-20mA outputs provide a variable
current for applications that are either externally powered or
that require power from the 4AO board.
7.2.11 8DO Digital Output Board
For control of anti-sweat heaters, Copeland supplies the 8DO
Digital Output board (P/N 810-3050). The 8DO has eight
outputs which may pulse up to 150mA at 12VDC.
The 8DO is primarily designed to control anti-sweat
heaters. The 8DO is shown in Figure 7-12.
7.2.12 XM Series of Case Controllers
The XM series is a set of digital case controllers for low to
medium units. The XM series control refrigeration
solenoids and defrost (electric or hot gas), evaporator fans,
lights and have an auxiliary output.
7.2.12.1 XM670K v3.4
The XM670 is high level microprocessor based controllers for
multiplexed cabinets suitable for applications on medium or
low temperature. It can be inserted in a LAN of up to 8
different sections which can operate, depending on the
programming, as stand alone controllers or following the
commands coming from the other sections. The XM670 is
provided with 6 relay outputs to control the solenoid valve,
defrost (which can be either electrical or hot gas) the
evaporator fans, the lights, an auxiliary output and an alarm
output. The devices are also provided with four probe inputs,
one for temperature control, one to control the defrost end
temperature of the evaporator, the third for the display, and
the fourth can be used for application with virtual probe or for
inlet/outlet air temperature measurement. Finally, the XM670
is equipped with the three digital inputs (free contact) and are
fully configurable. For more information about the XM670
controller, refer to the controller manual, P/N 026-1218.
Figure 7-11 - 4AO Analog Output Board (P/N 815-3030)
Figure 7-12 - 8DO Digital Output Board
4
5
7
8
9
Transmitting (TX ) and Receiving (RX) LEDs
Hand-held Terminal (HHT) Jack
8
9
Alarm and Status Indicator LEDs
4-20mA Channels (2)
Analog Outputs (4)
Figure 7-13 - XM670
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