Delta Elektronika SM120-25D Product Manual Download Page 3

SAFETY INSTRUCTIONS

SM3000

Page 2 - 2

DELTA ELEKTRONIKA B.V.

rev. February 2018

  Cau tion risk of elec tri cal Shock

!

  Instruction manual symbol. The unit will be marked with this symbol when it is

  necessary for the user to refer to the instruction manual

    Pro tec tive  ground  con duc tor  ter mi nal

o

   Off (sup ply)

I

  On (sup ply)

WEEE  (Waste Electrical & Electronic Equipment)

1

Correct Disposal of this Product

Applicable in the European Union.

This marking shown on the product, its packing or its literature indicates that

it should not be disposed with other wastes at the end of its working life, but

should be collected separately to recycle it responsibly to promote the

sustainable reuse of material resources.

11 Removal of (safety) covers  

Safety cover(s) are used to cover potentially hazardous voltages.

Observe the following when removing safety cover(s):

Switch off the unit.

Disconnect the unit from the mains supply or power outlet.

Wait for 5 minutes to allow internal capacitors to discharge.

Unscrew the screws and remove the cover(s).

Always place the cover(s) back before connecting the unit to the mains supply again.

12 Environmental Conditions

The Delta Elektronika power supplies safety approval applies to the following operating conditions:

Indoor use

Ambient temperature

20 to 50 

°

C

Maximum relative humidity

: 95%, non condensing, up to 40 

°

C

: 75%, non condensing, up to 50

 °

C

Altitude

: up to 2000 m

Pollution degree 

: 2

Summary of Contents for SM120-25D

Page 1: ...rlands www DeltaPowerSupplies com Tel 31 111 413656 SM3000 series PRODUCT MANUAL Contents 1 Datasheet 2 Safety Instructions 3 Descriptions 4 Operating Trouble Shooting Calibration 5 EC Declaration of...

Page 2: ...ution 3 When programming a high voltage unit directly via a PC or via a network connection either ground the negative power output or use a safety isolated interface For more information and schematic...

Page 3: ...d separately to recycle it responsibly to promote the sustainable reuse of material resources 11 Removal of safety covers Safety cover s are used to cover potentially hazardous voltages Observe the fo...

Page 4: ...2 INPUT VOLTAGE The power supplies have a wide input volt age range The units need a 3 phase input voltage but no neutral connection is required The units can also operate on one phase but at 90 of t...

Page 5: ...programming The inputs have a protection circuit formed by a series resistor and a parallel zener see fig 3 7 The capacitor limits the speed to a safe value Note that the analog inputs and outputs ar...

Page 6: ...gh 13 PROGRAMMING SPEED The response time is measured with a step waveform at the CV prog input Programming from a low to a high output voltage is nearly load independent but programming down to a low...

Page 7: ...gh energy pulse of about 300 V If there is an electrical connection between the output and the input through the oscilloscope you will get a false reading The suppression for the SM120 25D is lower bu...

Page 8: ...tch shuts down the output in case of insufficient cooling After cooling down the unit will start working again The thermal protection circuit protects 2 parts separately in the unit the switching tran...

Page 9: ...recommended for more than 3 units or in combination with Fast Programming option Consult factory for a solution 29 REMOTE SENSING The voltage at the load can be kept constant by remote sensing This fe...

Page 10: ...ure and full load the fan will run at a very low speed The fan does not operate on no load Normally at 50 C ambient and full load the fan will not work at full speed Since the fan is over rated it wil...

Page 11: ...ITER circuit so no large inrush cur rent will flow As soon as the voltage is sufficiently high the power supply starts working and the series resistor is bypassed by a relay contact The operating swit...

Page 12: ...mended to set the OVP on 24 3 27 V Check that the cooling of the unit is not obstructed 2 ANALOG PROGRAMMING Put the appropriate switch es in the position PROGRAM Connect the programming voltage sour...

Page 13: ...erminals so the OVP setting should be increased by the total voltage drop in the load leads 7 BATTERY CHARGER The CV CC regulated power supplies are ideal battery charg ers Once the output is set at t...

Page 14: ...ended for more than 4 units consult factory for using more than 4 power supplies in parallel First connect output terminals and test system in normal paral lel operation Ensure that all power connecti...

Page 15: ...ON For complex combinations as mixed series parallel always use the MASTER SLAVE SERIES ADAPTER product See fig 4 14 for an example of how to connect 2 units in se ries in parallel with 2 units in ser...

Page 16: ...ly to dry before switching it on again 3 GALVANIC INDUSTRY For using the power supplies in the galvanic industry it is strongly recommended to take precautions against an aggressive environ ment An ag...

Page 17: ...nt is flowing through pin 1 of the prog connector Please check why current is flowing through pin 1 see also next paragraph 4 and fig 4 17 4 PROGRAMMING OFFSETS Unwanted offsets in the programming can...

Page 18: ...ry to re pair P430 except for D400 D401 F400 and F401 but send P430 for repair or ask for replacement 10 CHECK POINTS IN CASE OF A SERIOUS FAILURE Check output diodes Defective diodes give a short SM...

Page 19: ...h exactly 5 00 V Set output voltage to a low value ensuring the power supply is in CC mode Measure the output current with an accurate shunt Cali brate the current with R686 exactly on the rated max c...

Page 20: ...al EN 55022 Radiated and conducted Class B EN 61000 3 3 Voltage fluctuation and flicker EN 61000 6 1 Generic Immunity residential light industrial EN 61000 6 2 Generic Immunity industrial environment...

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