Wiring To The Remote Alarm Contacts - HindlePower AT30 SERIES Operating And Service Instructions

INSTALLING THE AT30

1.10. WIRING TO THE REMOTE ALARM CONTACTS

Built-in Summary "Common" Alarm Relay (standard)
The AT30 Main Control PC
Board (A1) is equipped with a
"common" Summary Alarm
relay. This relay contact
transfers when any one or
more of the standard AT30
alarms exist.
See Sections 2.2.7 and 2.3.4
for a list of these alarms and
status codes. One form-C
alarm contacts are provided,
and accessible via terminal
block (TB3), as shown in the
figure on the right.
Follow the procedure below to
wire an annunciator to this
contact.
PROCEDURE
1. Allow 30in / 762mm of wire inside the enclosure. Excess will be trimmed.
2. Route annunciator wires to the AT30 front panel door by following the
existing harness through the door hinge as shown. Use two (2) wire ties and
allow a 4-6in / 102-153mm loop for the hinge.
3. Trim wires to the proper length for connecting to TB3. Strip 0.25in / 6.4mm
of insulation from the wires.
4. Make the connections at TB3, and securely tighten the screws.
NOTES
1. Alarm contacts are rated at 0.5A / 125 Vac or Vdc.
2. Summary Alarm relay terminal block (TB3) is compression type, accepting
wire sizes #22-14 AWG.
3. Terminals are labeled in non-alarm condition.
4. If user alarm contacts (TB3 and/or TB4A/B) are to drive inductive dc loads
(e.g. a larger dc relay) an external protective diode must be applied at the dc
relay to avoid equipment damage. See Application Note (JD5011-00).
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