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HA40 4-Channel Controller
Revision 1 (08/08)
HA40 Technical Manual 1-4
The basic HA40 consumes only 1.5 watts of 10-30 VDC from the
integral power supply.
Optional features, and external devices such as remote transmitters,
increase power consumption as described below:
Discrete Relay PCB option; add 1.5 watt.•
4-20mA Output PCB option; add .5 watt.•
TB3 terminals 1 & 2 on the motherboard provide a maximum •
of 350mA output power for powering of auxiliary external
devices such as relays, lamps or transmitters (see Figure 3-1).
Power consumed from these terminals must be included when
calculating system power consumption.10-0221-4, Analog Input
PCB option; add wattage for each monitor connected to this
board’s 24 VDC terminals.
Some applications require HA 40 controllers to source power for high
power monitors. If the integral 15 watt power in not enough, a 24VDC,
50 watt power supply, UL rated for Div 2 hazardous areas is available.
This option is also available with a Div 1 enclosure if an explosion-
proof enclosure is required. (See Section 5 - Specifications.)
Warning
A backup, or external DC power source DOES NOT source auxiliary
poweroutput(seegure3.1TB3).
1�3�2 Relays
Two mechanical (dry contact) Common Form C relays are standard and
may be mapped to various alarm events as described in Section 2.3.1.
HA40’s may also be equipped with optional solid-state common Form
A relays (see Section 5 - Specifications for details) in applications
requiring non-arcing switching. Solid-state relays are recommended
for switching of highly inductive loads.
A six mechanical (dry contact) Discrete Relay option board (see
Section 3.1.6) provides dedicated Form C relays for ALARM 1, ALARM
2 and FAULT for all channels.
Warning
All mechanical (dry contact) relays are rated at 5 Amp for 28 VDC
and 250 ~VAC RESISTIVE loads. IMPORTANT: Appropriate diode (DC
loads) or MOV (AC loads) snubber devices must be installed with
inductive loads to prevent RFI noise spikes.
Optional solid state relays are rated at 2 Amp 12-280~VAC (600Vpk).
Relay wiring should be kept separate from low level signal wiring.
1�3�3 Ambient Temperature Range
-25 to 50 degrees C
1�3�4 Humidity Range
0 to 90% R. H. Non-Condensing.
1�3�5 Altitude
Recommended up to 2000 meters