User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion® HSD-440 Mark 2 Terminal
23-15-30 3-9
3 JUN 10
(6) Remote Status Panel (Optional)
An optional remote status panel may be in
stalled when HSD-440 Mark 2 Terminals
are located in inaccessible or remote locations. The installation of a remote status
panel is recommended as it provides visual indications of the power and faults for
each terminal.
A remote reset switch for HSD-440 Mark 2 Terminals can also be installed and
locate
d with the remote status panel. Figure 3-3 illustrates a typical wiring diagram
for the remote reset circuit.
(a) Remote Reset Circuit Sw
itch Requirements
HSD-440 Mark 2 Terminals support the ins
tallation of a Remote Reset Switch
circuit as shown in Figure 3-3.
The HSD-440 Mark 2 Terminal Remote Reset circuit requires less than 100 ohms
between TP1K (RESET)
and MP1F(COM) to be asserted and greater than 10
kilohms to be de-asserted (includes all cable and switch contact resistance).
Figure 3-3 Remote Reset Circuit Switch
(b) Remote LED Driver Circuit Requirements
The circuit requirements for the HSD-440 Ma
rk 2 Terminal Remote Status LED
drivers are shown in Figure 3-4. Each LED driver circuit provides an open-drain
Field-Effect Transistor (FET) interface that has a maximum continuous
dr
ain-to-source voltage of 35 V dc and drain-to-source current of 0.5 A dc. These
cir
cuits are designed to sink current to ground only. Any external lamps or LEDs
connected to these driver circuits require the appropriate external voltage and
series impedance to be connected.