General Monitors TA402A, Instruction Manual

Page: 12 / 51

Rear Terminal Connections (
continued
)
14 AWG wire may be used if it is properly
stripped according to figure 3.
Fig ure 3
Contact with PC Board components should
be avoided in order to prevent damage by
static electricity .
To connect wires to the terminal block on
the Model TA402A, loosen the desired
screw, insert the stripped end of the wire and
tighten.
For the rear terminal designations refer to
figure 4 below:
Fig ure 4
A2 Time De layed Alarm
The terminal designations for the A2 Time
Delayed Alarm outputs are:
La bel Term De scrip tion
A2- C1 2d Re lay Com mon (1&2)
A2-1 4d Re lay Con tact
A2-2 6d Re lay Con tact
A2-3 8d Re lay Con tact
A2-4 10d Re lay Con tact
A2- C2 12d Re lay Com mon (3 & 4)
A2- OC 14d Open Col lec tor (OC)
LA2 24z OC Logic for A2 LED
The A2 Time Delayed Alarm outputs are
DPDT relays, 1 open collector output
(A2-OC) that follows the logic of the relays
and 1 open collector output (LA2) that
follows the blinking pattern of the front
panel LED. The A2-C1 designation is
common for A2-1 & A2-2. The A2-C2
designation is common for A2-3 & A2-4.
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 A2 Time Delayed Alarm relay
contacts while the unit is on power:
8
Installation
General Monitors
User Se lected
Re lay State
Nor mally
Open
Nor mally
Closed
Nor mally
En er gized
A2- C1 & A2-1,
A2- C2 & A2-4
A2- C1 & A2-2,
A2- C2 & A2-3
Nor mally
De- Energized
A2- C1 & A2-2,
A2- C2 & A2-3
A2- C1 & A2-1,
A2- C2 & A2-4