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DCP42-EU-EN V1.2   9/13 

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6.2 Function A/B/C Waveform Generator 

Preset 1 = A 
Preset 2 = B 
Preset 3 = C 
FUNC (A/B/C) sets the duration (from 0 to 600 seconds) that the voltage generator remains ON 
at the specified output voltage level before moving to another voltage level. 

6.2.1 Set FUNC (A/B/C): 

1. Enter the ΔV/Δt setting first (Refer to the Set Mode section 4.3.)
2. Turn the Voltage control knob to select the desired function and then turn the Current

control knob to set the time period (0 to 600 seconds) for the chosen voltage level.

3. Pressing the Current control knob toggles coarse and fine tuning of the time period.
4. To generate waveforms, the Func A/B/C button is used in conjunction with ΔV/Δt button (the 

time period from one voltage level to another voltage level)

5. Using the above functions simultaneously, 3 reversible pairs (AB & BA, BC & CB, AC & CA) can 

be used to generate waveforms.

Example 1: 

Pulse waveform with 3sec at 10V and 1sec at 5V. 

Set A (Preset 1) = 5V, set B (Preset 2) = 10V 
Set Func A = 1 second 

by turning the Current control knob 

Func B = 3 seconds using the same procedure as above 
Set 

Δt

 a-b = 0 , Set 

Δt

 b-a = 0 

6.2.2 Generating Wave Form 

To generate the waveform push SHIFT and then press the 

ΔV/Δt 

button

 

The waveform will repeat cyclically until the SHIFT button and then the 

ΔV/Δt 

button is pressed. 

Example 2: 

Triangle waveform 

Set A = 5V, B = 10 V 
Set 

Δt 

a-b = 3 seconds, Set Δt b-a = 3 seconds 

Set Func. A = 3 seconds, Set Func. B = 3 seconds 

Note: 

The waveform generator can be operated via the remote programming software (with 

waveform preview and graphical datalogging output presentation features). Details are provided 
in the section 4 titled ‘PC Software Program’.

 

Please verify that the Preset keys are both lit and that one is flashing. The flashing light will jump 
from one to the other, A to B, then B to A. The waveform will repeat cyclically until SHIFT and  
then 

ΔV/Δt 

are pressed again. Examples 3, 4, and 5 are provided in Appendix A later in this 

guide. 

actoolsupply.com

actoolsupply.com

Summary of Contents for DCP42

Page 1: ...USER GUIDE Model DCP42 160W Laboratory Grade Constant Power Switching Mode Power Supply actoolsupply com actoolsupply com actoolsupply com Extech DCP42 160W Single Continuous Switching Power Supply...

Page 2: ...emote Control Mode 8 4 3 3 Deactivating the Remote Control Mode 8 4 3 4 Factory Default Reset 8 5 OPERATION 9 5 1 Powering the Supply 9 5 2 Switching the Power Supply ON and Self Test Information 9 5...

Page 3: ...nection 12 6 4 2 Disconnection 12 6 5 Remote Control Operation 13 6 5 1 REMOTE CONTROL METHOD 1 Using two external DC voltage sources 13 6 5 2 REMOTE CONTROL METHOD 2 Using two 0 to 5K Ohm variable re...

Page 4: ...te and quick setting of Voltage Current Setting changing and verifying the current limit level is convenient and can be performed without output pole spiking The Remote Control feature permits output...

Page 5: ...e first Replace the AC fuse with the same type and rating as the original fuse The maximum output voltage of the DCP42 exceeds 60VDC avoid touching the metal contact parts at the output terminals CAUT...

Page 6: ...2 3 Menu Key Shift Key Lock Unlock Key A W meter Key Output ON OFF V t Key 7 Output Safety Jacks Rated 10A 8 USB Remote Control port For access to computer to run cyclical operation with programmable...

Page 7: ...er can change these output settings using the voltage and current knobs Recall No Output Voltage Output Current P1 5V Maximum P2 13 8V Maximum P3 40V Maximum 4 3 Set Mode Enter the Set Mode by pushing...

Page 8: ...ode all function keys located on the front panel will be locked the Lock Unlock button light switches ON 4 3 3 Deactivating the Remote Control Mode a Press Lock Unlock button to unlock all the functio...

Page 9: ...values by using coarse and then fine tuning The display will resume its normal brightness after few seconds to confirm an adjustment 5 4 Connecting the Power Supply and running a Test 1 Connect the eq...

Page 10: ...etting as an example turn the Voltage control knob until A b appears on the voltmeter display and then turn the Current control knob to set to desired transit time t 5 seconds for example 6 1 3 Genera...

Page 11: ...1 Pulse waveform with 3sec at 10V and 1sec at 5V Set A Preset 1 5V set B Preset 2 10V Set Func A 1 second by turning the Current control knob Func B 3 seconds using the same procedure as above Set t...

Page 12: ...return to normal operation Note The UVL and UCL settings default to the maximum output value 6 4 Remote Sensing Note Observe warnings displayed by the Power Supply an incorrect disconnection sequence...

Page 13: ...by varying the external voltage source Short circuit the main output with 14AWG wire to check the CC setting on the display while varying the external voltage source 6 5 2 REMOTE CONTROL METHOD 2 Usin...

Page 14: ...e the software please refer to the instructions provided on the supplied CD ROM and or the instructions provided in the HELP Utility within the software program Check the software download page of the...

Page 15: ...t keys on PC keyboard for new locations 3 Data that exceed the rated voltage and current will not be accepted 4 Voltages that exceed the UVL Upper Voltage Limit will not be accepted 5 If retrieved or...

Page 16: ...Set t b a 2 seconds Set Func A 3 seconds Set Func B 3 seconds Example 4 Irregular waveform Set A 5V B 10 V Set t a b 2 second Set t b a 2 seconds Set Func A 2 seconds Set Func B 6 seconds Example 5 I...

Page 17: ...tage 80mVp p Current Ripple Noise peak peak 50mA Meter Type Accuracy Voltage Meter 4 Digit LED Display 0 1 5 counts Current Meter 4 Digit LED Display 0 1 5 counts Resolution Output Voltage Resolution...

Page 18: ...1 5KVac O P F G 0 5KVac Insulation Resistance I P O P I P F G O P F G 100Mohm 500Vdc EMC CE EN55011 Harmonics Current Emission EN 61000 3 2 Voltage Fluctuations Flicker EN 61000 3 3 EMC Immunity EN 61...

Page 19: ...nit to cool for at least 30 minutes Check to see if any ventilation holes are blocked also check that there is sufficient clearance around the power supply Listen carefully for the short wind sound em...

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