Related Manuals for Tait T809-10
Summary of Contents for Tait T809-10
- Page 1 MBZ-00001-01 DRAFT 2.5 T809-10 Power Supply Service Manual Issue 1 November 2004 MBZ-00001-01 Copyright © 2004 Tait Electronics Ltd November 2004...
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Page 2: Earthing Procedure: Method
42). Technical Information If further information is required about the T809-10 power supply or this Manual, it can be obtained from your nearest Tait Dealer or Customer Service Organisation. Further technical assistance may be obtained from Technical Support (contact details are on page 42). -
Page 3: Table Of Contents
Remote Control 3.6.1 Using a Control Voltage Above 10VDC Parallel Operation for Redundancy Output Voltage Adjust 3.8.1 Adjusting the Output Voltage Power Supply Cooling and Derating 3.10 Battery Charging 4Functional Testing Basic Operation Copyright © 2004 Tait Electronics Ltd November 2004... - Page 4 Service Information Warnings 6.1.1 Warning: Lethal Voltages 6.1.2 Caution: Handle With Care 6.1.3 Warning: Safety Approval Mechanical 6.2.1 Wiring Diagram 6.2.2 Screw Heads and Torque Settings 6.2.3 Assembly Drawing 6.2.4 Parts List November 2004 Copyright © 2004 Tait Electronics Ltd...
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Page 5: General Information
13.8V at up to 30A. The T809-10 power supply is designed as a replacement for the T807 and T808 power supplies, and as such, it is intended to supply T800 Series Base Stations. The T809-10 power supply is available in two configurations – the T809-10-0000 and the T809-10- 00C1 (or -00C2), as described below. - Page 6 For detailed specifi- cations, refer to Sections 1.3.1 (EMC Conformity) and 1.3.2 (Safety Approvals). To prevent the T809-10 equipment from overheating, do not exceed the Caution: rated current. Note: the rated output of the power supply may need to be lowered (derated), depending on AC input voltage and ambient tempera- ture (refer to Section 3.9).
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Page 7: Specifications
The performance figures given are minimum figures (unless otherwise indicated) for equipment operating at standard room temperature (+22°C to +28°C). Details of test methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd. 1.2.2 General Basic Power Supply Concept …... -
Page 8: Ac Mains Input
1 Ambient temperature refers to the air temperature circulating around the power sup- ply unit, inside the rack cabinet, during normal operation. It does not refer to the tem- perature in the equipment room. November 2004 Copyright © 2004 Tait Electronics Ltd... -
Page 9: Miscellaneous
The remote control circuit is optically isolated from the rest of the power supply. Remote Sense (Auxiliary inputs +S and –S) … 0.3V maximum voltage drop between sense inputs and load terminals Copyright © 2004 Tait Electronics Ltd November 2004... -
Page 10: Regulatory Information
There is, however, no guarantee that interference will not occur in a particu- lar installation. If this equipment does cause harmful interference to radio or television reception (which can be determined by turning the equipment November 2004 Copyright © 2004 Tait Electronics Ltd... -
Page 11: Safety Approvals
Safety of information technology equipment. ANSI/UL Std No 60950-1. Safety of information technology equipment. Safety approval will be void if T809-10 components are replaced with non- Warning: equivalent rated or non-certified/non-approved components. Contact Tait Electronics Technical Support before replacing T809-10 components. For important servicing information, refer to Section 6. - Page 12 General Information MBZ-00001-01 November 2004 Copyright © 2004 Tait Electronics Ltd...
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Page 13: Power Supply Description
IEC plug (mains input) Protective bonding terminal Phoenix Contact Feedthrough 9-way D-range connector terminal block (DC output) (Auxiliary inputs) Figure 2.1 T809-10 internal view. Refer to Section Section 6.2.4 (Parts List) for more detail. Copyright © 2004 Tait Electronics Ltd November 2004... - Page 14 Mains power to the PSU module is supplied via an IEC plug on the rear panel and the illuminated power switch on the front panel (refer to Figure 2.1). This path is filtered. The mains ground line is connected directly to the T809-10 chassis (stud terminal), and from there to the module’s ground terminal.
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Page 15: Front Panel Indicators
Power Supply Description MBZ-00001-01 Front Panel Indicators The status of the T809-10 is shown on the front panel by two indicators – an illuminated power switch and an LED. Indicator Status Power switch illuminates when the unit The power supply has AC power... -
Page 16: Features
• Output Voltage Adjust. 2.3.1 Input Voltage Range The T809-10 power supply has universal AC input range capability. It is designed to operate for an input voltage range of 100 to 240V . If used at any other input voltage the power supply may operate improperly and/or lose the PFC function. -
Page 17: Remote Sense
(for example, a transmit- ter). This feature is accessible on the auxiliary input connector (9-way D-range) on the rear panel of the T809-10. For more information, refer to Section 3.5 (Remote Sense). 2.3.4 Remote Control The output voltage of the PSU module can be remotely controlled (ON/OFF) by apply- ing a DC control voltage across the remote control input terminals. - Page 18 DC voltage at the load, the output voltage of the power supply can be increased (up to 18V approximately) to compensate for the voltage drop lost along the cable. For more information, refer to Section 3.8 (Output Voltage Adjust). November 2004 Copyright © 2004 Tait Electronics Ltd...
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Page 19: Installation Guidelines
3.1.1 T809-10-0000) Configuration The T809-10-0000 is designed for use in a standard 483mm (19inch) T800 subrack fitted with the same supporting guide rails as those used for the T808/T807. To mount the T809-10-0000 into a subrack, use the two front-panel mounting screws. -
Page 20: Wiring And Protection Devices
For safety reasons, all T800 subracks must be fitted with a protection device (fuse or cir- cuit breaker) positioned after the output of the T809-10 power supply. The T809-10 out- puts a high current when overloaded – up to 48A for an output short circuit. -
Page 21: Wire Gauges
The minimum recommended wire sizes for a maximum operating temperature of 60°C, are as follows: Wire Temperature/Insulation Wire Gauge 90°C PVC or Neoprene CSA (Cross Sectional Area) (8AWG – American Wire Gauge ) Copyright © 2004 Tait Electronics Ltd November 2004... -
Page 22: Power Supply Cord (Ac Input)
Ensure the power supply cord has a current rating of at least 10A. • Ensure that the power supply cord is approved in the country of use and meets the local electrical safety regulations. November 2004 Copyright © 2004 Tait Electronics Ltd... -
Page 23: Rear Panel Connectors
The pinouts of the rear panel connectors are shown below: Output voltage adjust Auxiliary inputs Phoenix Contact Feedthrough terminal block (13.8 output) Positive (+) Negative (–) Live Earth Neutral Protective bonding terminal Mains input Figure 3.3 T809-10 Rear panel Copyright © 2004 Tait Electronics Ltd November 2004... -
Page 24: Dc Output Terminal Block
MBZ-00001-01 3.3.1 DC Output Terminal Block The DC Output Terminal block on the rear of the T809-10 is a Phoenix Contact HDFKV 10. This is a screw-type terminal connector that uses a cage mechanism to clamp the conductor(s). When installing: •... -
Page 25: Rack Frame Earthing
To earth the power supply: • Connect the earthing wire from the T809-10 earthing stud terminal to a –DC rail (0V) terminal. The earthing connection can be made between the stud terminal and the negative output of the power supply. -
Page 26: Remote Sense
Connecting the Remote Sense Wires The remote sense feature is located on the auxiliary input connector (9-way D-range) on the rear panel of the T809-10 (refer to Figure 3.3 on page 23). To connect the remote sense feature, use the information supplied below:... - Page 27 The heavy gauge wire connection between the power supply and the pro- tection device and switch (if used) must be rated to carry the fault current of the power supply – refer to Section 3.2 (Wiring and Protection Devices). Copyright © 2004 Tait Electronics Ltd November 2004...
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Page 28: Remote Control
MBZ-00001-01 Remote Control The output voltage of the T809-10 can be remotely controlled by applying a DC control voltage across the auxiliary inputs +RC and –RC. The auxiliary inputs are located on the auxiliary input connector (9-way D-range) on the rear panel of the T809-10. -
Page 29: Parallel Operation For Redundancy
, the resistor R* is not required. When V is >10V Note: the resistor R* must be connected. The value of R* in kΩ is given by: – R KΩ ---------------------- 1 – Parallel Operation for Redundancy [Content to come] Copyright © 2004 Tait Electronics Ltd November 2004... -
Page 30: Output Voltage Adjust
If necessary, reduce the load current to compensate for the increased output voltage. Note: A derating factor may or may not apply depending on operating conditions. Refer to Section 3.9 (Power Supply Cooling and Derating). November 2004 Copyright © 2004 Tait Electronics Ltd... -
Page 31: Power Supply Cooling And Derating
MBZ-00001-01 Power Supply Cooling and Derating Although the T809-10 is a high efficiency switched mode power supply, a considerable amount of heat is generated during normal operation. While in use, ensure that an ade- quate flow of cooling air is able to circulate around the power supply, and that the air intake vents on the rear and sides of the unit are not inadvertently covered. -
Page 32: Battery Charging
3.10 Battery Charging The T809-10 is not designed for battery charging. In order to use the T809-10 as a battery charger, a battery management module will be required. Any current T808/T807 installations being replaced with the T809-10 and set up for bat- tery charging, must be fitted with a battery management module if not already fitted. -
Page 33: 4Functional Testing
3 Set the DC output load to maximum resistance/minimum current. 4 Connect the T809-10 to the mains supply and switch it on. The power switch and the ON LED should be illuminated. 5 Vary the DC load and check that the output voltage and current are within the specifications (refer to Section 1.2.4). -
Page 34: Output Noise
2 Set up the test equipment as shown in Figure 4.1. 3 Connect the T809-10 to the mains supply and switch it ON. The power switch and the ON LED should be illuminated. 4 Connect a digital voltmeter (for example, Fluke 77) across the load terminals and set the meter to its lowest AC volts range. -
Page 35: Troubleshooting
Equipment cooling is For installation guide- inefficient due to incorrect lines, refer to Section 3.9 installation of the T809-10 The T809-10 internal fan Replace module or return has failed faulty module for servi- cing Copyright © 2004 Tait Electronics Ltd November 2004... - Page 36 Troubleshooting MBZ-00001-01 November 2004 Copyright © 2004 Tait Electronics Ltd...
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Page 37: Service Information
Contact Tait Electronics Support before replacing components of the T809-10. The power supply module inside the T809-10 is not a user serviceable item. This module contains components that operate at voltages that may be lethal. Do not open this module. -
Page 38: Mechanical
Mechanical This section provides information on replacing various parts and modules of the T809-10 power supply. 6.2.1 Wiring Diagram The diagram below shows the wiring layout for the T809-10’s connectors and power supply module. Illuminated ON LED power switch IEC mains... -
Page 39: Screw Heads And Torque Settings
MBZ-00001-01 6.2.2 Screw Heads and Torque Settings The T809-10 uses three types of screw head. To avoid damaging the screw heads, please ensure when servicing the power supply that you select the appropriate screwdriver tip from the table below. Screwdriver... -
Page 40: Assembly Drawing
Service Information MBZ-00001-01 6.2.3 Assembly Drawing Figure 6.2 below shows an exploded view of the T809-10-0000. For information on each part, see the corresponding number in the Parts List (6.2.4) Figure 6.2 Mechanical assembly of the T809-10-0000. 6.2.4 Parts List Item No. - Page 41 Service Information MBZ-00001-01 Copyright © 2004 Tait Electronics Ltd November 2004...
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