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Relays and Timers Frequently Asked Questions AutomationDirect Logo


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Question:

What are the mounting options for the Fuji 1/16 DIN super timers?

Answer

You can mount the timer either as a 'through the door' or as a back-panel timer. There are two different sockets for this and you must order an extra mounting clip for the 'through the panel' configuration.

The TP411X and TP48X sockets will allow you to mount the appropriate timer on a 35mm DIN rail or directly to a backplane. The TP411SBA and TP48SB sockets will mount to the back of the timer when it's installed in an enclosure door, but you also need to order the PANEL-16 mounting clip to hold the timer flush against the enclosure.

FAQ ID: 1035



Question:

Do you have any timers that will alternate the state of their contacts continously; turning them on and off, repetitively?

Answer

The CTT Series Timers can be used. They have the ability to use separate on and off times but the on time must be longer than the off time. You can swap which relay contacts are used to reverse the on and off time.

The MS4SM Fuji 1/16 DIN super timer family has a FLICKER mode, which will alternate the state of the contacts ON and OFF cyclically, but the ON and OFF time are the same time, set by the dial on the face.

FAQ ID: 1038



Question:

Can I set the CTT series Timer/Counter/Tach to Flicker Mode?

Answer

Yes, this is called "Repeat Cycle 2" in the CTT Manual starting on page 3-20

To use Repeat Cycle

  • select [mode] longer than 3 sec
  • pick time using the up/down keys
  • select t mode
  • pick up or down counting/timing using the up/down keys
  • select t otmd
  • pick rCY2 using the up/down keys
  • select t Unit
  • pick your time base using the up/down keys
  • select rtSr
  • pick 1 or 20 ms reset using the up/down keys
  • select tnPtLC
  • pick PnP or nPn using the up/down keys
  • press [mode] for longer than 3 sec to go to run mode.


[mode] selects the SET1 or SET2 on and off times.

RST2/Start input will start Flicker mode

[RESET] or RST1 input stops the flicker mode Note! Set1 time must be longer than Set2 time.

Note: If you jumper the start input to +12 VDC (configured for PnP) or 0V (configured for nPn) it will start the cycle on power up after the CTT stabilizes.

FAQ ID: 1408



Question:

What spacing is recommended between the AD-SSR relays?

Answer


ADC recommends 1" spacing between AD-SSR relays.

FAQ ID: 1420



Question:

Which of your relays are OK for continuous use? (Power to coil maintained indefinitely)

Answer


All of our Solid-state relays and electro-mechanical relays are OK for continuous use. (Power to coil maintained indefinitely)

The Latching relays and timer relays are not OK for continuous use.

FAQ ID: 1439



Question:

What are the temperature codes for hazardous location 750H series relays?

Answer

For 750Hs, 2 & 3 pole versions, all with AC coil the T code is T4A and max ambient temp is 40 degree C while all the DC coils have a T code of T5 with a max ambient temp of 70 degree C.

FAQ ID: 1529



Question:

How do you adjust the rotary switches on the Dold Timer relays?

Answer














Range tmax 1 sec 6 sec 30 sec 3 min 30 min 300 min 30 h 300 h
time setting t time in sec time in sec time in sec time in min time in min time in min time in h time in h
0.01 0.02 0.06 0.3 0.03 0.3 3 0.3 3
0.1 0.1 0.6 3 0.3 3 30 3 30
0.2 0.2 1.2 6 0.6 6 60 6 60
0.3 0.3 1.8 9 0.9 9 90 9 90
0.4 0.4 2.4 12 1.2 12 120 12 120
0.5 0.5 3 15 1.5 15 150 15 150
0.6 0.6 3.6 18 1.8 18 180 18 180
0.7 0.7 4.2 21 2.1 21 210 21 210
0.8 0.8 4.8 24 2.4 24 240 24 240
0.9 0.9 5.4 27 2.7 27 270 27 270
1 1 6 30 3 30 300 30 300

Example 1: you want to adjust 15 minutes, so you select the "range tmax" to 30 min and the "time setting t" to 0.5 which results in 15 min.
Example 2: you want to adjust 22 seconds, so you select the "range tmax" to 30 sec and the "time setting t" between 0.7 and 0.8 (0.73) which results in 22 sec.

FAQ ID: 1636




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