Related Manuals for Woodward AGLC
Summary of Contents for Woodward AGLC
- Page 1 Released Product Manual 82004 (Revision D, 2/2021) Original Instructions AGLC Automatic Generator Loading Control 9905-096 (UL and CSA Listed) 9903-545 Installation and Operation Manual EC-US-L1...
- Page 2 Revisions— A bold, black line alongside the text identifies changes in this publication since the last revision. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken.
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Page 3: Table Of Contents
Released Manual 82004 AGLC Automatic Generator Loading Control Contents ......................3 ARNINGS AND OTICES ..................4 LECTROSTATIC ISCHARGE WARENESS ......................5 EGULATORY OMPLIANCE 1. G ..................... 6 HAPTER ENERAL NFORMATION Description ..............................6 Compatibility ..............................8 Construction ..............................8 2. A ...................... - Page 4 Figure 4-2. Typical System Interconnections ....................21 Figure 4-3. Plant Wiring for Multiple Engine AGLC Base Load Control ............. 22 Figure 4-4. Plant Wiring for Isolated Bus System with AGLC and 2301A ..........23 Table 4-1Breaker Open Relay Contact Rating ................... 19...
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Page 5: Warnings And Notices
Start-up On- and off-highway Mobile Applications: Unless Woodward's control functions as the supervisory control, customer should install a system totally independent of the prime mover control system that... -
Page 6: Electrostatic Discharge Awareness
Do not touch the components or conductors on a printed circuit board with your hands or with conductive devices. To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715 , Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. -
Page 7: Regulatory Compliance
Released Manual 82004 AGLC Automatic Generator Loading Control Regulatory Compliance The 9905-096 AGLC is UL and CSA Listed. The 9903-545 AGLC is for replacement use only and is unlisted in North America. Woodward EC-US-L1... -
Page 8: Chapter 1. General Information
K3 contacts to the unit load-sharing lines. The AGLC then ramps the load down at a preset rate to a preset unload level. When the unload level is reached, the AGLC de-energizes relay K1 to automatically issue a breaker-open command. This command is used to separate the engine generator set from the paralleled system. -
Page 9: Figure 1-1. Automatic Generator Loading Control
As a system control, one AGLC can be used to base load from one to fifteen engine generator sets against a utility. In this mode, the system load-sharing lines are connected to the AGLC unit load-sharing lines. -
Page 10: Compatibility
AGLC Automatic Generator Loading Control The AGLC provides a zero to one mA meter drive signal (see Figure 4-1). This signal is proportional to the load-sharing line voltage reference level. A zero to one mA meter connected to this signal will indicate load demand on, or power level of, the local generating system. -
Page 11: Figure 1-2. Aglc Simplified Block Diagram
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 1-2. AGLC Simplified Block Diagram Woodward EC-US-L1... -
Page 12: Chapter 2. Applications
Speed Control (LSSC) and the system load-sharing lines. The LSSC load-sharing lines are connected to AGLC terminals 10 (+) and 11 (–) and the system load-sharing lines are AGLC terminals 9 (+) and 8 (–). The activate terminals (15 and 16) on the AGLC are connected to a set of generator-breaker auxiliary contacts. - Page 13 Loading a system is accomplished, as it is for one generator, by connecting the AGLC unit load-sharing lines (terminals 10 and 11) to the system load-sharing lines (terminals 8 and 9). Again, the AGLC system load-sharing lines connections (terminals 8 and 9) are not used. Before this operation can be started, the base load activate terminals 15 and 17 must be jumpered.
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Page 14: Figure 2-1. Block Diagram Of Aglc With Aptl Control
Contacts across terminals 18, 19, and 20 operate to open the utility breaker. When the utility breaker opens, the master AGLC is deactivated and the generator system then operates in isochronous load sharing. -
Page 15: Figure 2-2. Block Diagram Of Single Engine Aglc Base Load Control
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 2-2. Block Diagram of Single Engine AGLC Base Load Control Woodward EC-US-L1... -
Page 16: Figure 2-3. Block Diagram Of Multiple Engine Aglc Base Load Control
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 2-3. Block Diagram of Multiple Engine AGLC Base Load Control Woodward EC-US-L1... -
Page 17: Chapter 3. Installation
Power Requirements The AGLC requires a supply of either 115 Vac or 230 Vac power, either 50 or 60 Hz. The power supply must be uninterrupted while the AGLC is being used in the generating system. The AGLC may be connected to the bus for power. -
Page 18: Figure 3-1. Outline Drawing Of Aglc
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 3-1. Outline Drawing of AGLC Woodward EC-US-L1... -
Page 19: Chapter 4. Plant Wiring And Adjustments
Unload Trip and Base Load Reference Selections Unload Trip The unload trip level may be set with the potentiometer in the AGLC or by an external potentiometer. The external potentiometer will always override the Unload Trip Level set with the internal potentiometer in the AGLC. - Page 20 Connect a momentary “Open to Unload” switch between terminals 14 and 15. When this circuit is opened the AGLC will cause the attached units to go to the unload trip level at the unload ramp rate. The circuit must be closed for any of the base-load functions to work or to reset the unit so it will be able to load again.
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Page 21: Trip Relay
20 will close. The change in circuit state is used to issue a generator breaker open command. The circuits will remain in the trip position until the switch at terminals 14 and 15 closes and the AGLC trip relay is reset when the generator breaker’s auxiliary contacts open. -
Page 22: Figure 4-1. Aglc Control Plant Wiring
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 4-1. AGLC Control Plant Wiring Woodward EC-US-L1... -
Page 23: Figure 4-2. Typical System Interconnections
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 4-2. Typical System Interconnections Woodward EC-US-L1... -
Page 24: Figure 4-3. Plant Wiring For Multiple Engine Aglc Base Load Control
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 4-3. Plant Wiring for Multiple Engine AGLC Base Load Control (2301A System) Woodward EC-US-L1... -
Page 25: Figure 4-4. Plant Wiring For Isolated Bus System With Aglc And 2301A
Released Manual 82004 AGLC Automatic Generator Loading Control Figure 4-4. Plant Wiring for Isolated Bus System with AGLC and 2301A Woodward EC-US-L1... -
Page 26: Chapter 5. Troubleshooting
Troubleshooting Introduction When the AGLC is properly installed and the two ramp rates, unload trip, and the base load points have been established, operation is totally automatic. When the breaker closes, the auxiliary contacts activate the AGLC and the oncoming generator or generator system is loaded at a controlled rate. When the unload switch is opened momentarily, the controlled unit will unload to the trip point and, when the unload trip point is reached, signal the breaker to open. -
Page 27: Power Supply Test
When at the unload trip level, resistance between 18 and 19 should be infinite. Resistance between 19 and 20 should be zero. After the AGLC is put back into the system, the unload trip level must be readjusted. To do this, measure the voltage between terminals 6 and 7. - Page 28 Repeat steps 14 and 15 until the ramp rates are adjusted to suit the individual installation. This completes the bench test of the AGLC. Should any portion of the AGLC fail the test, the unit must be returned to Woodward for repair or replacement. If all essential portions of the test were completed successfully, the AGLC is operationally sound and can be installed in the control system according to the installation, plant wiring, and adjustment instructions.
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Page 29: Chapter 6. Product Support And Service Options
• An Authorized Independent Service Facility (AISF) provides authorized service that includes repairs, repair parts, and warranty service on Woodward's behalf. Service (not new unit sales) is an AISF's primary mission. • A Recognized Engine Retrofitter (RER) is an independent company that does retrofits and... -
Page 30: Returning Equipment For Repair
To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. -
Page 31: Engineering Services
Field Service engineering on-site support is available, depending on the product and location, from one of our Full-Service Distributors. The field engineers are experienced both on Woodward products as well as on much of the non-Woodward equipment with which our products interface. -
Page 32: Technical Assistance
AGLC Automatic Generator Loading Control Technical Assistance If you need to contact technical assistance, you will need to provide the following information. Please write it down here before contacting the Engine OEM, the Packager, a Woodward Business Partner, or the Woodward factory: General... -
Page 33: Revision History
Released Manual 82004 AGLC Automatic Generator Loading Control Revision History Changes in Revision D— • Changed part number on cover to 9903-545 • Added part number 9903-545 reference to Regulatory Compliance Section Changes in Revision C— • Updated Power Supply Test (page 22) - Page 34 Released Manual 82004 AGLC Automatic Generator Loading Control THIS PAGE INTENTIONALLY LEFT BLANK Woodward EC-US-L1...
- Page 35 Released Manual 82004 AGLC Automatic Generator Loading Control THIS PAGE INTENTIONALLY LEFT BLANK Woodward EC-US-L1...
- Page 36 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.
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