OFF - ON
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
4
1
2
4
8
16
32
1
2
4
8
32
12/24VDC
16
}
}
}
Trigger Delay - 0-7 Seconds
Relay 1 Delay - 0-63 Seconds
Relay 2 Delay - 0-63 Seconds
Timer Example
The timer is required to activate a sounder attached to relay 1 for
15 seconds with no trigger delay. After 15 seconds the timer will
activate relay 2 for 5 seconds to unlock the door.
FIG. 2 – TM3X DIP Switch Settings
Specifications
MECHANICAL:
ELECTRICAL:
ENVIRONMENTAL:
Dimensions:
Current Consumption - Active: 70mA
Product is not for use in
Length: 3.00”
76mm
Current Consumption - Idle: 12mA
outdoor environments.
Width: 2.10”
51mm
Relay Rating: 2A @ 24VDC
Height: 0.65”
22mm
TD3 Timer Troubleshooting Guide
PROBLEM
SOLUTION
Relay does not trigger when powered.
The relay sits at idle when powered up. To start the timing
sequence, the Trigger terminal (T) must be shorted to Ground
(-) for the amount of time set by trigger delay.
Timer board appears to be quietly “squealing”
Timing for the TD3 is controlled by a quartz crystal that
when triggered.
oscillates. This is not serious; occasionally quartz crystals
emit a sound when oscillating. This will not damage the
timer or hinder its operation.
2
TM3X Installation Instructions (con’t)
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