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Timers Fully programmable Type DHA52
* Fully programmable timing unit * The function is designed with the BHF PC software * Waveform design capability: up to 16 status changes each status time range 0.1 s to 100 h programable trigger input event time steps can be set from the front knob * Full reprogrammability of the timing functions * Repeatability: 0.2% * Output: 5 A SPDT relay * For mounting on DIN-rail in accordance with DIN/EN 50 022 * 17.5 mm DIN-rail housing * Combined AC and DC power supply * LED indication for relay status and power supply ON
Product Description
DHA52 is a fully programmable timer to allow execution of self-designed timing functions. The function can be prepared using the free PC software BHF and connecting the unit to a PC. The user can decide to leave to the front knob for final setting the adjustment of one of the time steps. For mounting on DIN-rail. 17.5 mm wide housing suitable both for back and front panel mounting.
Ordering Key
Housing Function Type Item number Output Power supply Time steps
DHA 52 C M24 S16
Type Selection
Mounting DIN-rail Output SPDT Housing Mini-D Supply: 24 VDC and 24 to 240 VAC DHA 52 C M24 S16
Time Specifications
Time ranges each step 0.1 to 1 s 1 to 100 s 6 to 600 s 60 to 6000 s 0.1 to 10 h 1 to 100 h 0.1% +/- 10 ms of the set value for each step 5% 0.2% 0.05%/V 0.2%/C Close the trigger contact between pins A1 and Y1 100 ms 200 ms
Output Specifications
Output Rated insulation voltage Contact Ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life Operating frequency Dielectric strength Dielectric voltage Rated impulse withstand voltage SPDT relay 250 VAC (rms) 5 A @ 250 VAC 5 A @ 24 VDC 2.5 A @ 250 VAC 2.5 A @ 24 VDC 30 x 106 operations 105 operations (at 5 A, 250 V, cos = 1) < 7200 operations/h 2 kVAC (rms) 2.5 kV (1.2/50 s)
Setting accuracy (fixed steps) (knob step) Repeatability Time variation Within rated power supply Within ambient temperature Reset Manual reset of time and/or relay Pulse duration Power supply interruption
Supply Specifications
Power supply Rated operational voltage through terminals A1, A2 Overvoltage cat. II (IEC 60664, IEC 60038) 24 VDC 15% and 24 to 240 VAC + 10% -15%, 45 to 65 Hz 10 ms 1.5 W
Voltage interruption Rated operational power
Specifications are subject to change without notice (28.10.05)
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DHA52
Function/Time Setting
Upper knob: Time setting on relative scale for the selected steps: 1 to 100 with respect to the chosen range. T-RUN PCABLE PCABLEII (optional): Connected to the parallel port of your Personal Computer allows complete programming of function and timing for the unit using the software BHF.
General Specifications
Power ON delay Indication for Power supply ON Output relays ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Housing dimensions Weight Screw terminals Tightening torque Approvals CE Marking EMC Immunity Emission 100 ms LED, green LED, yellow (flashing when timing) (EN 60529) IP 20 2 (IEC 60664) -20 to +60C, R.H. < 95% -30 to +80C, R.H. < 95% 17.5 x 81 x 67.2 mm 75 g Max. 0.5 Nm according to IEC 60947 UL, CSA Yes Electromagnetic Compatibillity According to EN 61000-6-2 According to EN 61000-6-3
Accessories
T-RUN PCABLE/PCABLEII (optional): To be connected to the parallel port of your personal computer. BHF software: to be downloaded from the CARLO GAVAZZI site following the links for software download. See the website www.carlogavazzi.com/ac
Mode of Operation
With DHA52 it is extremely simple to obtain selfdesigned timing functions just preparing two diagrams with the PC configuration sofware BHF: one describing what happens at power on and one at the trigger (closing or opening). This allows a variety of applications that only fantasy is able to determine. After preparing the function on your PC it is enough to connect the T-RUN PCABLE or PCABLEII to the plug and program the unit. DHA52 becomes your self-customized timer with exactly the function you needed. The time values can be selected for setting with the knob according to what stated with BHF. Refer to BHF software for more information. Example: Setting a 3-blinks function plus a start activity. As soon as the power supply is applied three pulses are executed. Each one is separated by the following one by one second and the duration is respectively 4, 3, for the first two pulses and from 1s to 100s for the third one, depending on the position of the front knob, that can be set just in time. Closing the trigger contact causes the three 1 s pulses. In every case, after finishing the planned sequence, the unit waits for the new trigger. In case of trigger event before finishing the power on sequence, the trigger sequence starts. Additional load It's possible to wire an additional load (i.e. a relay) between pins Y1 and A2, driven by the trigger contact without damaging the device. Relay ON: See operation diagrams Note 1: The power supply voltage MUST be switched OFF while the modular plug is connected to the unit. Note 2: DHA52 can be reprogrammed (e.g.: in case of change of function or during the testing phase) several times using every time the same procedure. Note 3: The above example is just a small instance to show how easy is to obtain more and more nice and useful functions using DHA52.
Dimensions
17.5 67.2
18.7
Wiring Diagram
81
2
2
45
Specifications are subject to change without notice (28.10.05)
DHA52
Operation Diagrams
Example: power on sequence
Power ON
4s 1s 3s
Example: trigger sequence
Trigger
Knob Wait for trigger
1s
Wait for trigger
Example: activity
Power supply
Trigger input
Relay ON
LED
Specifications are subject to change without notice (28.10.05)
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