The CTT series from Automation Direct are multi-function digital units. They incorporate a multi-function digital counter, timer and tachometer all within the same unit. The timer mode will operate in twelve (12) different ways.
We will be looking at each of the timer modes on this versatile digital unit. Let’s get started.
All timer applications begin with a timing chart. The secret of using timers is a good place to start for a review of how timing charts work.
Programming these units can look like a hard task. The manual is over 260 pages! However, there is an easy way. The manual is broken up into chapters for each of the operation modes of the CTT. (Counter, Timer, Timer + Counter, Tachometer)
Once we find our operation mode, you look for the timing chart mode for your application. The manual includes all of the information that you need for that mode. This includes wiring diagrams, timing charts, program steps and dip switch settings.
Example –Signal On Delay 1 timer mode – Page 3-4 and 3-5 contain all of the information needed to program this mode.
Signal On Delay 1 – CTT Timer Modes
On delay timer with momentary Start Input
Watch on YouTube : CTT Signal On Delay 1 Timer
Signal On Delay 2
On delay timer with maintained Start Input
Watch on YouTube : CTT Signal On Delay 2 Timer
Signal Off Delay – CTT Timer Modes
Off delay timer with momentary Start Input
Watch on YouTube : Signal Off Delay Timer
Signal On – CTT Timer Modes
Off delay timer with latching Start Input
Watch on YouTube : CTT Signal On Timer
Power On Delay – CTT Timer Modes
On delay timer when power is applied
Watch on YouTube : CTT Power On Delay Timer
Power On Delay Hold
On delay timer when power is applied and actual value storage on power loss
Watch on YouTube : CTT Power On Delay Hold Timer
Repeat Cycle – CTT Timer Modes
Repeating On delay timer
Watch on YouTube : CTT Repeat Cycle Timer
Repeat Cycle Hold Timer
Repeating On delay timer and actual value storage on power loss
Watch on YouTube : CTT Repeat Cycle Hold Timer
Repeat Cycle 2
Repeating Off delay timer with separate on and off times
Watch on YouTube : CTT Repeat Cycle 2 Timer
Signal Cumulate – CTT Timer Modes
On delay timer with single start and pause input and actual value storage on power loss
Watch on YouTube : CTT Signal Cumulate Timer
Signal Twin On Start
Off delay timer with individual setpoints for Off and On times
Watch on YouTube : CTT Signal Twin On Start Timer
Signal Twin Off Start
On delay timer with individual setpoints for On and Off time.
Watch on YouTube : CTT Signal Twin Off Start Timer
Summary of features – CTT Counter Timer Tachometer
– Can operate as a digital counter, timer, combination timer + counter or tachometer
– Accepts voltage and non-voltage inputs from a wide variety of NPN, PNP, or dry contact sensors
– Selectable counting speeds from 1 to 10,000 cycles per second
– Multiple transistor and relay outputs can operate as momentary or maintained
– Double-line, 6-digit, 2-color LCD display
– Easy configuration with externally accessible DIP switches or the lockable keypad
– Display decimal point selection
– Available in 100-240VAC and 24VDC powered models
– UL508 listed (E311366), cULus, CE marked
Counter, Timer, Tachometer – CTT Series from Automation Direct
Shop Multi-Function Digital Counter / Timer / Tachometer
CTT Quick Start Guide
Digital CTT Manual
Rhino Power Supply
Next time we will look at the programming of the counter mode in the CTT.
If you have any questions or need further information please contact me.
If you’re like most of my readers, you’re committed to learning about technology. Numbering systems used in PLC’s are not difficult to learn and understand. We will walk through the numbering systems used in PLCs. This includes Bits, Decimal, Hexadecimal, ASCII and Floating Point.
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