400 & 600 AMP OWNER’S & INSTALLATION MANUAL MODEL # Revision 1.0 BOM # 1168497 Milbank | 4801 Deramus Ave., Kansas City, MO 64120 | 877.483.5314 | milbankworks.
California oposition 65 Warning gine exhaust from this product chemicals known to the state of ia to cause cancer, birth defects r other reproductive harm. California Proposition 65 Warning Certain components in this product and its related accessories contain chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Wash hands after handling.
TABLE OF CONTENTS CONTACT INFORMATION........................................................................................................................................5 CONTACT INFORMATION..................................................................................................................................5 AUTOMATIC TRANSFER SWITCH (ATS)...........................................................................................................5 GENERATOR.....................................
TABLE OF CONTENTS EXERCISER.............................................................................................................................................................29 ENGINE EXERCISER AND EXTERNAL LED ANNUNCIATION.......................................................................29 Introduction..................................................................................................................................................29 Clearing the Exerciser......................
INTRODUCTION Thank you for your purchase of a Milbank Vigilant Series Automatic Transfer Switch (ATS). This product is designed for use with standby generators. This ATS may have different installation requirements depending on the generator manufacturer or design. When operated and maintained according to the instructions in this manual, your system will provide many years of standby electrical energy service. This manual contains important safety instructions for installation and operation of this ATS.
SAFETY IMPORTANT SAFETY INSTRUCTIONS Read Manufacturer’s Instructions. SAVE THESE INSTRUCTIONS. • This manual contains important information that should be used during installation, maintenance and operation of this unit. • Read all the instructions and safety symbols thoroughly before attempting to install, operate and/ or service this equipment.
SAFETY SAFETY LABELS Always replace any illegible or missing labels immediately. All safety labels must be legible to alert personnel to safety hazards. ! WARNING The safety messages that follow have WARNING level hazards. • Failure to properly ground equipment can result in electrocution. • Do not touch bare wires. • Do not use equipment with worn, frayed, bare or otherwise damaged wiring. • Do not handle electrical cords while standing in water, while barefoot, or while hands or feet are wet.
SPECIFICATIONS VIGILANT 400A/600A SPECIFICATIONS Vigilant series transfer switches do not support Delta configurations. UL1008 Emergency Standby rated AC current rating 400/600A, 2-pole, 3-pole AC voltage rating 120/240V, 120/208V, 277/480V AC voltage sensing is line to neutral.
VIGILANT PRODUCT SERIES VIGILANT PRODUCT OVERVIEW Milbank Vigilant series automatic transfer switches are represented by the MGVATS product identifier designed with all required sensing circuitry provided. The sensing circuitry allows automatic transfer of an electrical load to a standby power source in the event of an over/under voltage or frequency condition on any or all phases of the utility power source.
VIGILANT PRODUCT SERIES Handling As previously mentioned, each Vigilant transfer switch is packaged in its own individual box. Protect the equipment from impact at all times and do not double stack. Once the transfer switch is at the installation site and ready to be installed, the packaging material may be removed. VIGILANT CATALOG NUMBER IDENTIFICATION Milbank to supply label Storage Although well packaged, this equipment is not suitable for outdoor storage.
INSTALLATION AND WIRING GENERAL INFORMATION All Vigilant transfer switches are factory-tested and approved. Installation requires the mounting of the transfer switch as well as all external wiring for utility and generator operation. Once the transfer switch is properly installed, it should be visually inspected and approved before any testing is performed. MOUNTING LOCATION IMPORTANT: Vigilant series transfer switches do not support Delta configurations.
INSTALLATION AND WIRING CONNECTIONS Utility Cable Lugs N.O. dry contacts Generator SPST (Optional) Remote Start Contacts – To Generator Generator Cable Lugs Battery + Battery - Transfer Switch (Internal) - + 12/24VDC Generator Battery Load Cable Lugs Neutral Lugs Figure 5 Figure 4 – Power Cable Connection Locations ! WARNING On 600A models, always install the transparent protective shields covering the power connections of the switch mechanism once the proper connections are performed.
INSTALLATION AND WIRING An optional customer-supplied test switch may be installed by the customer using the TEST 1 and TEST 2 terminals. A closed circuit between the test connections will simulate a utility failure. See wiring diagram for details. The battery charger needs to be of high quality. Lowquality battery chargers will often go into full recharge mode due to VTS2 controller current draw. This will quickly wear out the battery.
GENERAL OPERATION VIGILANT SERIES GENERAL OPERATION The Vigilant switch in combination with the VTSC100 timing module will allow for the automatic transfer of an electrical load to a standby power source in the event of an over/under voltage or frequency condition on any or all phases of the utility power supply. In the event of an over/under voltage or frequency condition of utility power, the onboard VTSC100 sensing circuitry will begin the initiation of the transfer process.
ADJUSTMENTS AND SETTINGS The Vigilant series adjustments and settings may be made from the onboard VTSC100 transfer switch controller. The general settings and adjustments are as follows. See the VTSC100 controller user manual for detailed information on adjustments. VIGILANT SERIES ADJUSTMENTS AND SETTINGS ! DANGER Never adjust settings on the transfer switch controller while the controller is energized.
ADJUSTMENTS AND SETTINGS Under/Over Voltage: Switch #4, 5, 6 The dip switch located on the VTSC100 may be used to set the Over/Under voltage setting. Depending upon the positions of dip switch locations 4, 5 and 6, the VTSC100 will determine the percentage range to recognize a utility failure. The failure percentage adjustments can range from 11 to 18 percent of the utility power source for dropout and 6 to13 percent for pickup. Switch 4, 5 and 6 off for 18% and on for 11% dropout.
ADJUSTMENTS AND SETTINGS Testing Adjustments Controller test switch Manual testing of the Vigilant transfer switches may be achieved by manual adjustment of the test switch located on the VTSC100. The controller test switch will allow manual testing of the transfer switch. The purpose of the test switch is to simulate a utility power failure. Normally the test switch would be set to the utility position, allowing proper sensing for normal utility faults.
MANUAL TRANSFER MANUAL TRANSFER OF MECHANISM ! WARNING Never allow the removable lever handle to come in contact with live wires or terminals. ! WARNING Never perform a manual transfer while the transfer switch is under load. Manual transfer is not recommended. If performing an emergency manual transfer, be certain to isolate the transfer switch from all power and load sources. Manual transferring is not recommended.
MANUAL TRANSFER 600A Manual Transfer To transfer from Utility to Generator position: In 600A transfer switches, the manual transfer lever (M) located on the contactor is used to manually transfer between the utility and generator position. A separate removable lever handle is used to transfer the mechanism. See transfer instructions on the switch mechanism. Never transfer under a load condition. Always remove the handle from the manual transfer lever location after each transfer. 1.
MAINTENANCE RECOMMENDED MAINTENANCE ! WARNING Always isolate the transfer switch from all possible power sources when performing maintenance on the mechanism. Periodically inspect all terminals (load, line and control) and all fasteners for any loose parts or wiring. Periodically inspect all terminals (load, line and control) and all fasteners for tightness. Test the transfer switch operation upon initial installation.
DRAWINGS MGVATS4001480 – 400A – 480V GENERAL ARRANGEMENT Milbank VigilantTM Owner’s and Installation Manual 21
DRAWINGS MGVATS6001480 – 600A – 480V GENERAL ARRANGEMENT 22 Milbank VigilantTM Owner’s and Installation Manual
DRAWINGS MGVATS2001240 – 200A – 240V WIRING DIAGRAM Milbank VigilantTM Owner’s and Installation Manual 23
DRAWINGS MGVATS4001208 – 400A – 208V WIRING DIAGRAM 24 Milbank VigilantTM Owner’s and Installation Manual
DRAWINGS MGVATS4001480 – 400A – 480V WIRING DIAGRAM Milbank VigilantTM Owner’s and Installation Manual 25
DRAWINGS MGVATS6001240 – 600A – 240V WIRING DIAGRAM 26 Milbank VigilantTM Owner’s and Installation Manual
DRAWINGS MGVATS6001208 – 600A – 208V WIRING DIAGRAM Milbank VigilantTM Owner’s and Installation Manual 27
DRAWINGS MGVATS6001480 – 600A – 480V WIRING DIAGRAM 28 Milbank VigilantTM Owner’s and Installation Manual
EXERCISER ENGINE EXERCISER AND EXTERNAL LED ANNUNCIATION Introduction All Vigilant 2000 series transfer switches include an external engine exerciser and LED annunciation. The engine exerciser is easily adjustable from outside the transfer switch enclosure. External LED indication is included on all Vigilant 2000 series switches, allowing visual controller status. The user may set the engine exerciser to simulate a utility power failure and test the functionality of the transfer switch system.
EXERCISER NNOTE: The exerciser clock has a backup battery. The clock runs off the battery when utility power is not available. The battery is not rechargeable. Clearing the Exerciser Program Review 1. Repeatedly press TIMER button to advance the display to each subsequent ON or OFF user setting. 2. The user-set days and times will be displayed. Clear the timer before continuing. To do this, press the round button just above the MIN button. 3.
WARRANTY MILBANK MANUFACTURING VIGILANT™ OWNER WARRANTY POLICY LIMITED WARRANTY Milbank Manufacturing will repair or replace, free of charge, any part(s) of the equipment that is defective in material or workmanship or both providing that installation of the equipment complies with all applicable codes, industry standards, laws, regulations and provided installation manual.
WARRANTY This warranty will not cover the following repairs and equipment: • Normal Wear: Electrical equipment, like any mechanical device, needs periodic parts and service to perform well. This warranty does not cover repair when normal use has exhausted the life of the part or equipment.
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Revision 1.0 BOM # 1168497 Milbank | 4801 Deramus Ave., Kansas City, MO 64120 | 877.483.5314 | milbankworks.
