| The TD-7 series of time delay relays offer an easy and accurate way to select any time delay between 50ms & 999 hours. Programming is accomplished by using a pushbutton thumbwheel to select one of seven built-in time ranges and three pushbutton thumbwheels to digitally set the time delay required. This method provides a greater setting accuracy than is found on other units with an analog potentiometer. An LED indicates timing mode and time out condition. |
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Features:
- Pushbutton Thumbwheels for digital set of time delay
- 50ms - 999 hour programmable time range
- Uses industry-standard 8 or 11 pin octal sockets
- 10A DPDT output contacts
- LED indicates timing mode and time out conditions
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| Timing Functions |
| Code / Function |
Operation |
Timing Chart |
(A) ON DELAY
Delay on Operate
Delay on Make |
Upon application of input voltage, the time delay (t) begins. At the end of the time delay (t), the output is energized. Input voltage must be removed to reset the time delay relay & de-energize the output.. |
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(B) INTERVAL ON
Interval |
Upon application of input voltage, the output is energized and the time delay (t) begins. At the end of the time delay (t), the output is de-energized. Input voltage must be removed to reset the time delay relay. |
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(C) OFF DELAY
Delay on Release
Delay on Break
Delay on De- Energization |
Upon application of input voltage, the time delay relay is ready to accept a trigger. When the trigger is applied, the output is energized. Upon removal of the trigger, the time delay (t) begins. At the end of the time delay (t), the output is de-energized. Any application of the trigger during the time delay will reset the time delay (t) and the output remains energized. |
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(D) SINGLE SHOT
One Shot Momentary Interval |
Upon application of input voltage, the time delay relay is ready to accept a trigger. When the trigger is applied, the output is energized and the time delay (t) begins. During the time delay (t), the trigger is ignored. At the end of the time delay (t), the output is de-energized and the time delay relay is ready to accept another trigger. |
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(E) FLASHER
(Off First) |
Upon application of input voltage, the time delay (t) begins. At the end of the time delay (t), the output is energized and remains in that condition for the time delay (t). At the end of the time delay (t), the output is de-energized and the sequence repeats until input voltage is removed. |
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| Voltage Tolerance: |
AC Operation: +10/-15% of nominal at 50/60 Hz.
DC Operation: +10/-15% of nominal. |
| Load (Burden): |
3 VA |
| Setting Accuracy: |
±1% of set time or ±50ms, whichever is greater. |
| Repeat Accuracy (constant voltage and temperature): |
±0.1% of set time or ±0.02 seconds, whichever is greater. |
| Reset Time: |
On Delay/Interval/Flasher: 0.1 Seconds
Functions with Control Switches: 0.04 Seconds |
| Start-up Time: |
(Time from when power is applied until unit is timing)
120 & 240V units 0.05 Seconds
12, 24 & 48V units 0.08 Seconds |
| Maintain Function Time: |
(Time unit continues to operate after power is removed)
0.01 Seconds for all units |
| Insulation Voltage: |
2,000 volts |
| Temperature: |
12-120V Input Voltage: -28° to 65°C (-18° to 149°F)
240V Input Voltage: -28° to 50°C (-18° to 122°F) |
| Insulation Voltage: |
2,000 volts |
| Output Contacts: |
DPDT 10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.), 1/3HP @ 120/240V AC (N.C.) B300 & R300; AC15 & DC13 |
| Life: |
Mechanical: 10,000,000 operations
Full Load: 100,000 operations |
| Compatibility: |
Using a solid state switch to initiate the time sequence is acceptable. See www.macromatic.com/leakage for information regarding leakage current limits and other solid state design considerations. |
| Initiating Units with Control Switch Triggers: |
Timing sequence must be initiated only after input voltage is applied to unit. Minimum required trigger switch closure time is 0.1 seconds. |
| LED: |
Red LED. Refer to instruction sheet provided with product to determine code for relay & timing status. |
