Timer/Counter/Tachometer User Manual
CTA USER MANUAL FORWORD This user manual provides handy instructions for the operation of Delta CTA series. The detailed operational instructions help the user to easily locate the functions they would like to acquire. In addition, this user manual also helps sales and engineering staff to understand more about the advantages of Delta CTA series and assist the users to operate CTA as well as getting familiar with its functions. The date of the latest update is shown in the bottom left of the page.
CTA USER MANUAL NOTES How to use CTA correctly… To avoid misaction caused by interference, please make sure if you isolate the I/O wiring when I/O wiring and power cable or high-voltage cable in the same wiring tube. If possible, use a separate tube for the I/O wiring. Make sure that you place the sensor, other input devices, signal cables and CTA away from the interference source. It will require 200ms after CTA is switched on for the activation of the internal power and default value reset.
CTA USER MANUAL CHAPTER ONE: BASIC INSTRUCTIONS 1.1 Features Delta CTA series is the 3-in-1 timer, counter and tachometer with the following features: Can be a timer, counter, or tachometer and can operate in timer + counter mixed mode. Offers voltage input (PNP) or non-voltage input (NPN). The Pre-Scale function allows the input pulses to be displayed in their actual units. Counting speeds available: 1/30/200/1K/5K/10K cps. Maximum: 10K cps.
CTA USER MANUAL 1.
CTA USER MANUAL CTA4 series Counter CP1 CP2 Reset1 Reset2 Timer Gate Reset1 Start Tachometer CP1 Reset1 Timer + Counter CP1 Gate Reset1 Start Figure 1 Figure 2 Figure 3 Input connection: NPN PNP Output load PIN connection: 1. When CP1, CP2, RST1 and RST2 inputs are contact inputs, please set the input type as NPN. 2. When the previous device is an open collector type, the device can adopt the 12V power supply offered by CTA for the connection.
CTA USER MANUAL 1.7 Default Settings Tachometer Function Preset setting Select function Timer Timer mode Up (counting up) Output mode Sond1 Displayed unit S 001 (0.01) Pulse width of output 1 0.02sec Min. width of reset 20ms signal Input signal type NPN Select function Counter Counter mode Stage1 (1 stage) Input mode Up (counting up) Output mode F Counting speed 5K Position of decimal 0 (no decimals) point Pre-scale value 1.000 Save data while Clear switching off power Min.
CTA USER MANUAL Counter Switch Function 1 DIP switch 2 3 4 5 6 7 8 OFF ON Disabled Enabled Counting Counting Counting mode up down See the table on Output mode the right Counting speed 30cps 10Kcps Reserved Input signal NPN PNP Width of reset signal 20ms 1ms Switch 3 OFF ON OFF ON Switch 4 OFF OFF ON ON Output mode F N C R Switch 3 OFF ON OFF ON Switch 4 OFF OFF ON ON Output mode Lo-Lo Lo-Hi Hi-Lo Hi-Hi Tachometer Switch 1 2 3 4 5 6 7 8 Function DIP switch Reserved OFF ON Disabled Enabled See
CTA USER MANUAL CHAPTER TWO: FUNCTIONS 2.1 Timer There are counting up and counting down modes in the timer. 2.1.1 Setting up the counting unit sec. sec. sec. min., sec. min., sec. min. min. hr., min., sec. 0.01 ~ 9,999.99 0.1 ~ 99,999.9 1 ~ 999,999 0.01 ~ 9,959.99 0.1 ~ 99,959.9 0.1 ~ 99,999.9 1 ~ 999,999 A unit = 10ms A unit = 0.1 sec. A unit = 1 sec. A unit = 0.01 sec. A unit = 0.1 sec. A unit = 0.1 min. A unit = 1 min. Max. counting = 9,999.99 secs. Max. counting = 99,999.9 secs. Max.
CTA USER MANUAL 2.1.3 Setting up output mode of the timer There are 12 modes in the timer for different control demands from the user. The default output time of the 12 modes is 0.02 second. If you wish the system to keep the operation of the output, please set the output time to 0.00 second. Power signal Start signal Signal On Delay 1 (Sond1) Pause signal The start signal is in rising-edge trigger mode and starts to time after the rising edge is triggered until the set time for output.
CTA USER MANUAL Power signal Signal On (Son) Start signal The start signal starts to time and output when the rising edge is triggered and the clear signal is not executed. When the set time is reached, the timer will return to the default value and the output will be disabled. Pause signal Clear signal Output signal SV Up If clear signal is received during the execution of the timer, the timer will return to the default value and the output will stop.
CTA USER MANUAL Power signal Power signal Start signal Start signal Pause signal Pause signal Clear signal Clear signal Output signal Output signal t t t Repeat Cycle timer output not set as 0 SV SV Up Up 0 SV SV Down Down 0 Repeat Cycle timer output set as 0 Repeat Cycle (RCY) Output in cycle. When the output time is selected as 0 (left: continuous output), the output of the first timing cycle will not be executed.
CTA USER MANUAL Power signal Repeat Cycle2 (RCY2) Start signal Output in cycle. Pause signal The start signal starts to time and output when the rising edge is triggered and the clear signal is not executed. When the set time SV2 is reached, the output will be disabled and the timer continue to time until the set time SV1 is reached and the timer will start the timing again.
CTA USER MANUAL 2.2 Counter The counter functions include: 1-stage counting, 2-stage counting, batch counting, total counting and dual counting. 1-stage counting 2-stage counting Batch counting Total counting Dual counting Only 1 SV is allowed. 2 SVs and 2 PVs are allowed. When the PV equals SV, output 2 will be enabled and the batch PV will plus 1. This will repeat until the batch PV reaches batch SV and output 1 will be enabled. There is only one SV in total counting.
2.2.2 Setting up input mode of the counter CTA offers 5 counting modes: counting up, counting down, command counting up/down, individual counting up/down and quadrature input. The minimum signal width of the counting speed: Counting speed 1cps 30cps 1Kcps 5Kcps 10Kcps Minimum signal width 500ms 16.7ms 0.5ms 0.1ms 0.
CTA USER MANUAL Individual counting up/down Quadrature input CP1 H L B B B B CP2 H L 3 Present Value 2 2 1 1 0 0 Note: 0 has to be larger than width of 1/2 min. input signal. B 2.2.3 Setting up output mode of the counter CTA offers 11 output modes in the counter for 1-stage and 2-stage counting. When 1-stage output is selected, output 2 and output 1 will be operated in the same way.
CTA USER MANUAL Input mode Up/Down A, B, C Output mode setting S RESET 999999 SV2 SV1 0 OUT1 OUT2 T RESET 999999 SV2 SV1 0 OUT1 OUT2 D RESET 999999 SV2 SV1 0 OUT1 OUT2 2.2.4 Batch counting When the PV equals SV, output 2 will be enabled and the batch PV will plus 1. The PV will be cleared and the counting will restart. This will repeat until the batch PV reaches batch SV and output 1 will be enabled. For example: A fruit packaging machine has to package 100 boxes with 5 fruit in each box.
CTA USER MANUAL For example: An egg packaging machine packages 5 eggs as a unit. After the 5 eggs are packaged, output 1 and output 2 will be enabled at the same time and the motor will be informed to move to the next package. This process will repeat and record the number of eggs packaged in the total counter for the user to check at any time. 2007-05-09 - 18 - © DELTA ELECTRONICS, INC.
CTA USER MANUAL 2.3 Tachometer The tachometer in CTA measures the pulse width and displays the current frequency. The measuring and displaying unit in the tachometer is frequency (Hz); therefore, if you want the value to be displayed in rotation speed (rpm), you have to convert the frequency into rotation speed. See 2.3.3 for how to convert. 2.3.1 Setting up the parameters in the tachometer To enter the page for parameter setting of the tachometer, press in the main menu for more than 3 seconds.
CTA USER MANUAL 2Hi1Lo OUT2 set value 2Hi1Hi OUT2 set value Measurement value Measurement value OUT1 set value OUT1 set value OUT1 OUT1 OUT2 Measurement value Measurement value (HI-HI) (HI-LO) OUT2 OUT1 set value : OUT1 ON OUT2 set value : OUT2 ON Measurement value Measurement value OUT1 set value : OUT1 ON OUT2 set value : OUT2 ON 2.3.
CTA USER MANUAL At this time, the sensor detects the speed and sends it back to tachometer. Assume the value displayed on the screen is 3,200rpm, F × 60/3 = 3,200 F = 160Hz Figure 1 © DELTA ELECTRONICS, INC.
CTA USER MANUAL 2.4 Timer + Counter (Mixed Mode) CTA offers timer + counter mode. The timer corresponds to OUT1 (output 1) and the counter to OUT2 (output2). In this mode, the timer and counter both have a phase signal input; therefore, part of the functions will be limited. For example, there are 12 output modes for the timer of CTA, but only 8 output modes available in the timer + counter mode (Rcy2, Scon, Ston and Stoff are not available).
CTA USER MANUAL CHAPTER THREE: APPLICATIONS 3.1 On Cut-To-Length Machines The machine adopts the counter function in CTA and acquires the feedback signal from the encoder for measuring the actual operation distance. When the set distance is reached, the output signal will enable the knife for the cutting. Example: We will simulate the action above by using CTA and Delta ASDA-A. Parameter settings x z Select function: Counter z Select counting mode: 1-stage counting (only 1 set value).
CTA USER MANUAL Output Wiring Connect 0V, CP1 (phase A) and CP2 (phase B) to CN1 terminal on ASDA-A servo drive Assume The set value in the CTA counter is 160mm. When the counting reaches 160mm, an output signal will be given to the knife for the cutting. See figure 2. In the figure, we can see the diameter of the roller is 44.8mm Delta encoder 1 phase = 2,500ppr Calculate the pre-scale value π D = Prescale ppr π: 3.
CTA USER MANUAL Ruler at 60mm Figure 3 Figure 4 When the tachometer reaches 160mm, the output will be enabled. © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED - 25 - The distance moved is 160mm. The ruler stops at 60mm.
