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MNL940-677-000  

 

 

 

REV - B   

 

 

 

3/20/2017 

 

4

 

SECTION 2 
INSTALLATION 

 
 
2.1 

GENERAL 

 

WARNING

 

 

INSTALLATION AND OPERATION OF THIS DEVICE MAY EXPOSE HAZARDOUS VOLTAGES. 

REFER TO QUALIFIED PERSONNEL ONLY. 

 

The INV-1200 series inverters are designed to be installed in a standard 19" relay rack or EIA type 
enclosure. A set of accessory rack “ears” are provided for this purpose. These rack mount adapter 
brackets may be mounted at the front panel or in the middle of the chassis. In both cases, the 
adapters are held in place using # 10-32 x 3/8 inch hardware. 

  
     

 

 

 

 

       !    CAUTION

 

 

WHEN INSTALLING RACK MOUNT ADAPTERS, HARDWARE USED (MACHINE SCREWS) MUST 

NOT EXCEED 3/8" IN LENGTH. LONGER SCREWS MAY DAMAGE INTERNAL COMPONENTS AND 

CREATE A SHOCK HAZARD. 

 

Mount the unit in a suitable location as not to block the flow of cooling air at the front, rear, and 
sides of the inverter chassis. This device will pull in cool air from the front and sides and exhaust 
warm air from the rear. It is recommended that a minimum clearance of 3 inches be provided at 
the front and rear and 1 to 2 inches on the sides. Enclosures should be vented. 

 

When rack mounting, it is permissible to 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 

highly recommended

 

 

2.2   

WIRING

 

 

Wiring to the inverter will vary depending on input voltage and any options ordered. In addition, 
local electrical codes must be considered for permanent installations. The North American 
National Electrical Code  (NEC) requires that separately derived AC sources such as back-up 
generators, inverters, etc., must have one output conductor tied to a protective earth. This may be 
accomplished with the INV-1200 series by following the recommended hook up diagrams 
provided here.  

 

WARNING

 

 

ALL INSTALLATIONS AND VERSIONS OF THIS DEVICE REQUIRE THE USE OF THE SAFETY 

EARTH CONNECTION TO THE CHASSIS. FAILURE TO DO SO MAY CREATE A SHOCK HAZARD. 

THE VOLTAGE AND CURRENT PRODUCED BY THIS ARE HAZARDOUS. 

 

 
Figure 2-1 (following page) illustrates the wiring for models that do not include the bypass 
options. These units have two NEMA 5-15R type receptacles located on the rear panel. 
Compatible loads may be plugged into these receptacles.  Non-bypass type units are also 
available with a rear mounted terminal block in place of the NEMA receptacles. This is noted as 
the TB option. See section three of this manual for more information. 
 

 

 

 

 

Summary of Contents for Behlman INV-1200 Series

Page 1: ...T BEHLMAN CUSTOMER SERVICE DEPARTMENT PHONE TOLL FREE 1 800 874 6727 EMAIL SERVICE BEHLMAN COM WEB WWW BEHLMAN COM OR WRITE BEHLMAN CUSTOMER SERVICE DEPARTMENT 80 CABOT COURT HAUPPAUGE NY 11788 PHONE...

Page 2: ...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 re...

Page 3: ...us conditions due to the exposure of hazardous voltage that can be lethal if contacted Neither Behlman Electronics Hauppauge NY USA nor any of the subsidiary sales organizations can accept any respons...

Page 4: ...be refused 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...

Page 5: ...ial Authorization 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...

Page 6: ...arm 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...

Page 7: ...gged steel enclosure making them well suited to operation in industrial applications Available options include an AC input bypass and signaling contacts The AC bypass option is available in two config...

Page 8: ...protected Thermal Thermal cut out that monitors temperature Shuts down during over temp conditions Automatic Reset MECHANICAL WIDTH 17 in 43 2cm 19 standard EIA rack panel LENGTH 17in 48 3cm HEIGHT 3...

Page 9: ...nt 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 highly recommende...

Page 10: ...with respect to earth This situation does not meet the requirements of NEC section 250 regarding separately derived AC source To allow compliance with NEC rules an additional common terminal is provi...

Page 11: ...MNL940 677 000 REV B 3 20 2017 6 FIGURE 2 2 INV1200 WIRING WITH BYPASS OPTION FIGURE 2 3 INV1200 WIRING WITH BYPASS AND TB OPTIONS...

Page 12: ...t Each function provides one set of dry form C contacts which accommodates any logic required The internal relays will change state if any of the three voltages are outside of limits required to provi...

Page 13: ...standard 120VAC output to the higher value In addition the bypass option can also be included with the external transformer A block diagram of the optional transformer configurations is provided in fi...

Page 14: ...ion provides a terminal block 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 clea...

Page 15: ...e sound of the cooling fans should be evident 3 The appropriate front panel LEDs should be illuminated 4 To test the inverter use a True RMS type meter to confirm the output voltage is as specified 5...

Page 16: ...s the INV 1200 series to start most high in rush loads in its power range It must be understood that the DC power source suppling the inverter must also have this capability in order to derive these b...

Page 17: ...bridge rectifier followed by a capacitive filter the current waveform associated with this circuit is illustrated below in figure 3 3 The input current to this type of circuit is drawn in large gulps...

Page 18: ...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...

Page 19: ...in inverter 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...

Page 20: ...MNL940 677 000 REV B 3 20 2017 15 5 0 MECHANICAL OUTLINE ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED...

Page 21: ...EV B 3 20 2017 16 REVISION HISTORY Rev ECO DESCRIPTION DATE N A INV 1200 Gen 2 Initial Release 9 16 2016 A 17 030 Revised specification figure 2 1 to 2 3 redrawn 2 28 17 B 17 032 Corrected text figure...

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