Model TA102A
11
User Selected
Relay State
Normally
Open
Normally
Closed
Normally
Energized
A2-C1 & A2-1,
A2-C2 & A2-4
A2-C1 & A2-2,
A2-C2 & A2-3
Normally
De-Energized
A2-C1 & A2-2,
A2-C2 & A2-3
A2-C1 & A2-1,
A2-C2 & A2-4
Figure 23 – A2 Alarm Relay Contacts
3.3.2 A1 Alarm
The terminal designations for the
A1
Alarm outputs are:
Label
Term
Description
A1-C1
2z
Relay Common (1 & 2)
A1-1
4z
Relay Contact
A1-2 6z
Relay
Contact
A1-3
8z
Relay Contact
A1-4 10z
Relay
Contact
A1-C2
12z
Relay Common (3 & 4)
A1-OC 14z
Open
Collector
(OC)
LA1
24d
OC Logic for A1 LED (mimic)
Figure 24 – Terminal Designations for A1 Alarm Outputs
The
A1
Alarm outputs are DPDT relays, 1 open collector output (
A1-OC
) that follows the
logic of the relays and 1 open collector output (
LA1
) that follows the blinking pattern of
the front panel LED. The A1-C1 designation is common for A1-1 & A1-2. The A1-C2
designation is common for A1-3 & A1-4. The normally open (
NO
) and normally closed
(
NC
) contacts depend on a user selectable option (see Chapter 5).
The table below refers to the proper open and closed
A1
alarm relay contacts while the
unit is on power:
User Selected
Relay State
Normally
Open
Normally
Closed
Normally
Energized
A1-C1 & A1-1,
A1-C2 & A1-4
A1-C1 & A1-2,
A1-C2 & A1-3
Normally
De-Energized
A1-C1 & A1-2,
A1-C2 & A1-3
A1-C1 & A1-1,
A1-C2 & A1-4
Figure 25 – A1 Alarm Relay Contacts
3.3.3 Fault Alarm
The terminal designations for the
Fault
outputs are:
Label
Term
Description
F-C 16z
Relay
Common
F-1
18z
Relay Contact (NO)
F-2 20z
Relay
Contact
(NC)
F-OC
22z
Open Collector (OC)
FUA
32d
Open Collector (OC)
Figure 26 – Terminal Designations for Fault Outputs
