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Owner’s Manual HTS Automatic Transfer Switch 100 - 2600 Amp, 600 Volts MODEL:________________________ SERIAL:________________________ DATE PURCHASED:______________ NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT APPLICATIONS. ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION! This manual should remain with the unit.
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Automatic Transfer Switch Owner’s Manual...
Table of Contents Table of Contents Section 1 Safety 3.9 Main Contacts at Standby (Emergency) ..9 3.10 Connecting Controller Communication 1.1 Introduction ............1 Wires ..............9 1.2 Safety Rules ...........1 3.11 Setting Dip Switches ........9 1.3 Safety Symbols and Meanings .....2 3.11.1 Dip Switch 1 ...........10 3.11.2 Dip Switch 2 ...........10 Section 2 General Information...
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Table of Contents 4.6.4 Sequence 4 - Signal Before Transfer ....18 4.6.5 Sequence 5 - ATS Transfer to Generator Position ............18 4.6.6 Sequence 6 - Utility Voltage Pickup ....18 4.6.7 Sequence 7 - Return to Utility Timer ....18 4.6.8 Sequence 8 - Signal Before Transfer ....
Safety Section 1 1.1 — Introduction Read the following information carefully before attempt- ing to install, operate or service this equipment. Also read the instructions and information on tags, decals, and labels that may be affixed to the transfer switch. Replace any decal or label that is no longer legible.
HTS via the communication link. If the communica- 2.1.2.4—TVSS Disconnect tion link were to break, the HTS will still function. It will monitor the Utility and Generator voltages and make the transfer determination itself, rather than being com- manded by the generator control panel.
2.2.1— G and H Panel Generators link. The 2-wire start output allows the ATS to start and stop The HTS acts as a Modbus slave on the communications the generator automatically. Without a RS-485 communi- network. For the “H” series of generator controllers, Port cation link and 2-wire start, the timing functions of the 1 is used for the connection.
General Information 2.4 — Transfer Switch Data Label A data label is permanently affixed to the transfer switch enclosure. Use this transfer switch only with the specific limits shown on the data label and on other decals and labels that may be affixed to the switch. This will prevent damage to equipment and property.
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Installation Section 3 3.1 — Introduction to Installation 3.4 — Connecting Power Source and Load Lines Though this equipment has been wired and tested at the factory, the installer should verify all wiring connections are proper. Installing the switch includes the following procedures: •...
Installation 3.4.2— Transfer Mechanisms (600-2600A) tionary. The normal (utility) and standby (emergency) contacts are moveable. The contacts are actuated by See Figure 3-2. The transfer mechanism may be either a means of a closing coil and mechanical linkage. The pole 2-pole, 3-pole, or 4-pole type.
Do not connect the shield at this end. 3.11 — Setting Dip Switches The dip switches, in the HTS, are read once, only at power up. If the communications to the Power Manager or the engine controller are working, it will overwrite the dip switch settings.
(not the average voltage) Pickup — all phases > +75% of nominal 3.12 — Programming The HTS transfer switch is controlled by the G/H control panel on the engine generator. The timer, voltage pickup, dropout and exercise settings are programmed into the Figure 3-7.
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Operation Section 4 4.1 — Functional Tests and Adjust- Note position of transfer mechanism main contacts by observing display windows in “A” and “B” in Fig- ments ure 4-1 as follows: Following transfer switch installation and interconnection, • Window (A) ON, Window “B” OFF - load terminals inspect the entire installation carefully.
Operation 4.2.2— 600 - 2600 Amp Models 4.2.2.1—Trip to Neutral Position See Figure 4-4. Remove manual handle from square shaft at the upper left corner of the switch. Insert a screwdriver into the “Trip” hole and push The main contact should trip to the neutral position and the word “OFF”...
Operation 4.3 — Voltage Checks IMPORTANT: Any voltage measurements should be per- formed with a meter that meets UL3111 safety standards, and meets or exceeds overvoltage class CAT III. Before performing voltage checks, verify the following: Disconnect all loads from transfer switch until all Figure 4-5.
Operation transfer switch by whatever means provided (such cuit breaker(s), then proceed to Subsection 4.4 — as the main line circuit breaker), then return to Step Electrical Operation. 1 of Subsection 4.3 — Voltage Checks. 4.4 — Electrical Operation On the enclosure door, check that the utility avail- able LED is ON.
Operation 4.5.1— System Ready LED using all the standard settings but with reduced time delays. Specifically the following timers are reduced to 1 The “System Ready LED” is lit if the Gxxx or Hxxx panel second: is in Auto, there are no transfer errors (excluding comm's •...
Operation 4.6.7— Sequence 7 - Return to Utility Timer second utility loss timer and a 30 second utility return timer. • Return to Utility timer starts. The Utility source volt- • Voltage dropout triggers sequence 2. age must stay above the pickup level. If the Utility voltage falls below the pickup value, the Return to Utility timer is reset.
Set the timer to “0” when this option is not desired. The basic operation of the option is to delay (for the period of time set) the transfer of the HTS mechanism while a signal relay (SR) is energized. When the relay is energized, two sets of the dry contacts (wires 236 and 240, and 237 and 238) are closed.
The instrument package includes a terminal strip used to connect the current transformers and associated wiring. The HTS controller takes in the current signals and passes them on to the Hxxx or Gxxx panel for display on a PC through GenLink-DCP.
Maintenance Section 5 5.1 — Operate Transfer Switch 5.4 — Main Current Carrying Contacts Operate the transfer switch at least once each month. At least once annually, have an Authorized Service Tech- This can be done by performing a NORMAL TEST of the nician check the main current carrying contacts in the system.
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CGA, except to the extent permitted by that Act, and these terms are to be modified to the extent necessary to give effect to that intention. If you acquire goods from Generac Power Systems or any of its authorized resellers and distributors for the purposes of a business, then pursuant to section 43(2) of the CGA, it is agreed that the provisions of the CGA do not apply.
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CGA, excepto con el alcance permitido por la ley y estos términos se deben modificar con el alcance necesario para hacer efectiva esta intención. Si adquiere bienes de Generac Power Systems o alguno de sus revendedores y distribuidores autorizados con propósitos comerciales, entonces, conforme a la sección 43(2) de la CGA, se acuerda que no se aplican las previsiones de la CGA.
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Pendant la période de garantie mentionnée ci-bas, qui débute dès le démarrage réussi de l’appareil ou l’activation en ligne de l’appareil, Generac Power Systems, Inc. (Generac) garantit que son commutateur de transfert sera exempt de vices de matériaux et fabrication en ce qui concerne les éléments et la période indiqués ci-dessous.
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