Viking tdr-1 Service Manual
TDR-1
TDR-1
Time Delay Relay
May 18, 2000
Viking's model TDR-1 is a time delay relay device
designed to be easily configured to fit a wide variety
of applications. The TDR-1 has (2) different modes
of operation:
1) In the Time Delay Mode, the TDR-1 can be programmed to produce one of 8 closure times. The
Trigger 1 input can be programmed to accept either
a dry contact closure or positive/negative going logic
level voltage.
2) The Delay on Operate mode delays an input trigger by a programmed interval. Eight delay times are
available, from 1 to 30 seconds.
Versatile Time Delay Relay
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• 1 Double Pole, Double Throw relay output
• 8 selectable closure times
• DIP switch programming
• Accepts positive or negative going logic
level voltage or contact closure
• Selectable time delay
• Screw terminal connections
• LED relay status indicator
• Controlled closure times
• Delayed closures
• Convert closures between N/O and N/C
Power: 120V AC to 12V DC adapter provided
Dimensions: 74mm x 53mm x 25mm (2.9” x 2.1” x 1.0”)
Shipping Weight: 0.4 kg (0.86 lbs)
Environmental: 0° C to 32° C (32° F to 90° F) with 5% to 95%
non-condensing humidity
Input: Logic level voltage (+ 5 VDC) or contact closure
Relay: 1A@30VDC, 0.3A@110 VDC, 0.5A@125VAC
Connections: 10 position cage clamp terminal strip
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A. Trigger Inputs
Referring to the diagram in Installation, section B, configure shunt JP1 to set up the trigger input for the proper input
polarity. For a positive going input, put the shunt on the (+) side. For a negative going input or dry contact closure,
leave the shunt on the (-) side (factory default).
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A. Mounting
1. Remove the cover from the TDR-1.
2. Mount the unit on a wall, using either screws or the included foam tape. Make
sure there is easy access to the internal terminal block. To facilitate mounting,
the internal board of the TDR-1 can be rotated exposing the two mounting holes
in the chassis.
3. Once mounted, swing the board back into position.
4. Wire unit as shown below.
5. Replace the cover, making sure the wires pass through the wiring cutout.
B. Wiring
VIKING
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MODEL: TDR-1
321
Switch 1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Switch 2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
Switch 3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Trigger 1
.5 sec
1 sec
2 sec
4 sec
7 sec
10 sec
15 sec
20 sec
C. Delay on Operate Mode
To put the TDR-1 into the “Delay on Operate Mode”, strap Trigger 2 to
ground by wiring terminal 2 to terminal 3. Refer to the diagram to the
right to set the dip switches for the desired delay time.
Note: See section “A. Trigger Inputs“ to set proper input polarity.
Switch 1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Switch 2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
Switch 3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Trigger 1
1 sec
2 sec
4 sec
7 sec
10 sec
15 sec
20 sec
30 sec
Trigger 1
DC Common (GND)
JP1
(Trigger 1)
One Viking model PS-2 power supply
adapter can power up to (10) TDR-1s
by cascading screw terminals 3 and 4.
(GND)
12VDC In/Out
N/O
Common
N/C
N/O
Common
N/C
Momentary Contact
Closure or Logic
Level Voltage Input
120V DC Adapter
Provided
B. Time Delay Relay Mode
Choose the DIP switch setting for the desired activation time using the
diagram shown to the right.
Note: See section “A. Trigger Inputs“ to set proper input polarity.
1 234 567 8910
OFF
ON
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