BEHLMAN INV 2500, User'S Manual And Technical Reference Manual

Page 1: ... ASSISTANCE CONTACT BEHLMAN CUSTOMER SERVICE DEPARTMENT PHONE TOLL FREE 1 800 874 6727 OR WRITE BEHLMAN CUSTOMER SERVICE DEPARTMENT 80 CABOT COURT HAUPPAUGE NY 11788 PHONE 631 435 0435 FAX 631 951 4341 FOR SALES INFORMATION PHONE 631 435 0435 USA 800 874 6727 FAX 631 951 4341 DATE 01 13 REV 1 ...

Page 2: ...ipment in the presence of flammable gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove equipment covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with power applied Under certain conditions dan...

Page 3: ...the customer being liable for all shipping handling and repair costs When packing for reshipment use the original shock absorbent material and shipping container to preclude damage to the equipment Insure that the return authorization numbers RMA is available on the container for identification SHIPPING INSTRUCTIONS RACK MOUNTED UNITS 1 Box es must be double wall with minimum 350 lbs bursting test...

Page 4: ...tion RMA number This number must be attached to the equipment sent back for warranty repair Equipment must be shipped back to Behlman prepaid No collect shipments will be accepted Behlman shall be excused from supplying warranty service if the unit s case has been open or if the unit has been subject to unauthorized repair All service outside the scope of this warranty shall be paid for by the Pur...

Page 5: ...nal Alarm Contacts 2 4 Optional Step up Transformer 3 0 OPERATING INSTRUCTIONS 3 1 Controls and Indicators 3 2 Optional alarm contacts 3 3 Operational Considerations Load Limitations Powering Reactive Loads Powering Lamps Powering Motors Powering Non Linear Loads 4 0 TROUBLESHOOTING 4 1 Theory of Operation 4 2 Trouble Shooting 4 3 Maintenance 5 0 MECHANICAL OUTLINE ...

Page 6: ...st The second option A1 will favor the AC line input and will switch to the inverter if the line is lost These features allow the unit to be incorporated into a user defined back up power system 1 1 SPECIFICATIONS INPUTS MODEL DC INPUT DC BURDEN full load DC BURDEN no load 2500 125 125 DC 20 31 AMPS 100 VDC 550 mA 20 2500 48 48 VDC 20 80 AMPS DC 38 VDC 1 7 A 20 AC INPUT optional bypass mode only 1...

Page 7: ...2 inches on the sides Enclosures must be vented When rack mounting DO NOT mount the inverter by the mounting ears only If the unit is intended for use in a mobile or other high vibration application the use of additional support for the rear of the chassis is mandatory 2 2 WIRING Wiring to the inverter will vary depending on input voltage and any options ordered In addition local electrical codes ...

Page 8: ...ny options The units have two a screw type terminal block located on the rear panel Compatible loads may be connected into this terminal block See section three of this manual for more information CAUTION FAILURE TO OBSERVE DC POLARITY ON THE INPUT TO THIS DEVICE MAY CAUSE DAMAGE TO INTERNAL CIRCUITRY THIS WILL VOID EQUIPMENT WARRANTY FIGURE 2 1 ...

Page 9: ...quirements The output of the inverter is isolated from the DC input and the line This allows the output to be floating if required by end user s application Maximum continuous common mode potential is limited to 250Vac or 360Vdc Figure 2 2 illustrates a typical bypass configuration Figure 2 2 The recommended wire size for each model is listed below in table 2 1 These sizes are based on a maximum w...

Page 10: ...g of the alarm functions are 0 3 amp 125 Vac maximum The figure 2 3 below illustrates the alarm internal wiring Figure 2 3 To prevent possible EMI electro magnetic interference alarm wiring should be accomplished with twisted pairs Shielding is also recommended This will prevent interference from entering or leaving the unit All alarm connections should be made with 6 inside diameter ring lugs A r...

Page 11: ...iagram of the optional transformer configurations is provided in figure 2 4 Special units may vary and will be identified by a four digit engineering code Interconnecting wiring should be rated at 250Vac or better Ring lugs are recommended for all connections Figure 2 4 External Step up transformer block diagrams ...

Page 12: ...nits provide screw type terminal blocks 6 AC LINE INPUT TERMINALS Screw type terminal block provided with alarm bypass option For connection to bypass source 7 FAN EXHAUST Heated air exhaust Minimum 4 inch clearance required for full power operation 8 DC INPUT Screw type terminal block to connect DC input 9 ALARM SIGNAL TERMINAL Screw type terminal block to connect alarm signals The table above li...

Page 13: ...12 INV 2500 SERIES MANUAL REV 1 1 13 SECTION 3 OPERATION 3 1 CONTROLS AND INDICATORS FIGURE 3 1 FIGURE 3 2 ...

Page 14: ...ted to the output terminals The DI bypass function can be verified by removing the DC input leave front panel breaker on Confirm that the DC IN and INVERTER LEDs turn off and the corresponding rear panel alarm contacts change state The AC IN LED will remain on and the AC IN contacts do not change state Use a voltmeter to confirm that the input AC is routed to the unit s output terminals or outlets...

Page 15: ...ne or two cycles of the AC waveform The model 2500 s fold back current limiting can be an advantage when starting motors During the starting period the motor will attempt to draw excessive power from the inverter The fold back circuit will reduce the output voltage in order to maintain the maximum output current During this time the current supplied to the motor will remain sinusoidal this allows ...

Page 16: ...n this case the load current is said to be discontinuous as it does not flow over the full cycle of the output waveforms This action can cause perturbations on the output waveform This may show up as ringing or clipping Ringing can be reduced by adding a small resistive pre load of about 10 to 20 watts across the output terminals FIGURE 3 3 ...

Page 17: ... the sine wave information The result is a 400V p p pulse train at the output that contains the original sine wave information The 20 KHz carrier frequency is removed by a low pass LC filter This provides an amplified version of the original modulation signal to the output terminals The control circuitry on the output inverter assembly also provides output regulation and protective functions The o...

Page 18: ...nverter Check polarity if ok the unit may have an internal fault Return for service WARNING Service of this device requires specialized equipment and trained personnel There are no internal user serviceable parts Removing the cover will expose individuals to hazardous voltages Refer service to qualified persons only 4 3 MAINTENANCE The INV 2500 series requires very little in the way of routine mai...

Page 19: ...18 INV 2500 SERIES MANUAL REV 1 1 13 5 0 MECHANICAL OUTLINE ...