Advanced Protection HPS - Manual (Page 9)

The surge counter includes Test and Reset buttons on the
touchpad display. Pressing Test adds one count. Pressing
Reset clears the counter’s memory and sets the display to zero.
The counter includes a SuperCap charge device to store
the surge count in the event of a power loss. The SuperCap
requires no maintenance giving it an advantage over
replaceable batteries.
Figure 6
Phase A, B & C: Green LED indicators—one per phase. Green is
good. Out indicates problem. Every suppression element in this SPD
is monitored. (N-G indicates on Phase A)
Service LED (Red): LED illuminates in the event of problems. This
indicator is logic-connected to the Phase LEDs. Should a Phase
LED go out the Service LED will illuminate and the Audible Alarm
will sound.
Test: Tests red Service LED and Audible Alarm, and changes state
of Dry Contacts.
Alarm Silence: Turns Audible Alarm off. (Alarm is deactivated when
the Silence LED is illuminated.)
Surge Counter Count: (if equipped) Increments optional surge
counter by one. (+1)
Surge Counter Reset: (if equipped) Resets optional surge counter
to zero. (0)
DIAGNOSTIC DISPLAY PANEL
Phase B
Phase C
Service
Phase A
Advanced Protection Technologies
Test Count Reset Silence
Surge Counter
Phase C
Service
Phase B
Phase A
Surge Counter
Advanced Protection Technologies
Silence Test Count Reset
Figure 5
PINOUT DIAGRAM FOR DRY
CONTACTS OF SPD
Using DB-9 Syle Connector:
1 Normally Closed
2 Common
3 Normally Open
4 Normally Closed
5 Common
6 Normally Open
7 Connected to Pin 4
8 Connected to Pin 5
9 Connected to Pin 6
1
2
3
4
5
6
7
8
9
Form C Set #2
Form C Set #1
1 Normally Closed
2 Common
3 Normally Open
4 Normally Closed
5 Common
6 Normally Open
7 Connected to Pin 4
8 Connected to Pin 5
9 Connected to Pin 6
1
2
3
4
5
6
7
8
9
Form C Set #2
Form C Set #1
Dry Contact Option
Two sets of Form C dry contacts are included with the Dry
Contact option. Dry Contacts change state during inoperative
conditions, including loss of power. Any status change can
be monitored elsewhere via Dry Contacts.
A Terminal Block includes two sets of Normally Open (N.O.)
and Normally Closed (N.C) contacts. Both sets of contacts
operate the same. This is shown in Figure 5.
A typical application using a Normally Closed configuration
would connect to one set of the N.C. and Common terminals.
During an inoperative condition, the SPD’s dry contact would
change state from normally closed to open. We generally
suggest the Normally Closed configuration because it will
detect a wiring defect, such as cut wire(s), where N.O. will not.
Please note: Dry Contacts are designed for low voltage or
control signals only.
Maximum switching current is 5A
Maximum switching voltage is 240V DC or AC.
Higher energy applications require additional relay
implementation outside the TVSS.
An optional Remote Monitor accessory is available to provide
visual and audible status. The Remote Monitor will consume
one of the two sets of Dry Contacts.
Remote Monitor Accessory Option
A Remote Monitor is available for remote annunciation.
It requires a standalone 120V power source (wall plug
transformer) and uses one set of Form C dry contacts. The
Remote Monitor can be configured to monitor several APT
SPDs simultaneously. Installation is detailed in a separate
document. Contact factory as appropriate.
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