APX Series ® Non-standby Power Supply APX Series Installation and Operation Manual Effective: April 2006 Alpha Technologies
Power Alpha Technologies ®
APX Series Non-standby Power Supply 016-030-B0-005, Rev C Effective Date: April 2006 Copyright© 2006 Alpha Technologies, Inc. A Member of the Alpha Group NOTE: Photographs contained in this manual are for illustrative purposes only. These photographs may not match your installation. NOTE: Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding.
Table of Contents Safety Notes .......................................................................................................................... 7 1.0 2.0 Introduction ................................................................................................................. 8 1.1 Operating Principle .......................................................................................... 8 1.2 Standard Configurations .....................................................................
List of Figures Fig. 1-1, Ferroresonant “Tank” Circuit and Resulting Output Waveform .............................................. 9 Fig. 1-2, Pole Mount Enclosure ...........................................................................................................11 Fig. 1-3, APX Main Transformer Assembly ..........................................................................................11 Fig. 1-4, The Alpha APX (PM) and Installable Options1 ..................................................
List of Figures, continued Fig. 2-26, AMM-C Ammeter Kit .......................................................................................................... 36 Fig. 2-27, AMM-C Install Steps ........................................................................................................... 36 Fig. 2-28, AMM-C Installation ............................................................................................................. 37 Fig. 2-29, TDR-M Potentiometer ..............................
Safety Notes Review the drawings and illustrations contained in this manual before proceeding. If there are any questions regarding the safe installation or operation of the system, contact Alpha Technologies or the nearest Alpha representative. Save this document for future reference. To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following symbols have been placed throughout this manual. Where these symbols appear, use extra care and attention.
1.0 Introduction The Alpha APX Series Non-standby Power Supply provides conditioned power to signal amplifiers in cable television and broadband distribution systems. The modular design, consisting of a baseplate, transformer assembly and enclosure cover, supplies the load with current-limited, regulated AC power, that is free from spikes, surges and other forms of power line transients. The design supports easy upgrades simply by replacing the transformer assembly, saving time and money.
1.0 Introduction, continued 1.1 Operating Principle, continued T1 Ferroresonant Transformer and AC Capacitor Noisy Input Waveform C1 Clean Output Waveform Fig. 1-1, Ferroresonant ‘Tank’ circuit and resulting output waveform AC power enters the module where it is converted to a “quasi” square wave and regulated (at the required output voltage). It is then passed on to the load via the VSF fitting located on the baseplate assembly.
1.0 Introduction, continued 1.2 Standard Configurations The APX Series non-standby power supplies are available in the following configurations: Available Configurations Description APX 6008 120VAC, 60Hz Input; 8A, 480VA, 60V Output; available in Pole, Rack, Wall, Shelf, or Pedestal Mount configurations. Includes: 8A thermal input circuit breaker, 120VAC output receptacle and 10A output fuse.
1.0 Introduction, continued 1.2 Standard Configurations, continued Main Transformer Assembly (MTA) Enclosure Cover Baseplate Assembly Holes for Padlock Fig. 1-2, Pole Mount Enclosure Fig. 1-3, APX Main Transformer Assembly 016-030-B0-005, Rev.
1.0 Introduction, continued 1.3 Optional Features You can equip the APX Series with the following options.See Section 2.10, for installation instructions. Option Description Part Number GLK Enclosure Locks Security lock for pole mount enclosures. PM models are equipped with a security hole to accomodate a standard padlock. GLK-PED: 740-263-22; GLK-PM: 744-229-21 LA-M Plug-in Lightning Arrestor The LA-M is a 350 joule, Metal Oxide Varistor (MOV) for primary site protection.
1.0 Introduction, continued 1.3 Optional Features, continued See Table 1-1 for a complete description of these features. Modular Transformer Assembly (MTA) GLK Enclosure Locks ® Enclosure Cover LA-M ACAT-3P SIL-C AMM-C TDR-M Fig. 1-4, The Alpha APX (PM) and Installable Options 016-030-B0-005, Rev.
2.0 Installation 2.1 Pole Mount Installations The APX-PM can be mounted on wooden, steel, or concrete poles. Most local codes require that the base of the enclosure be at a minimum height from the ground. Always verify height restrictions before proceeding. NOTE: Poles are typically the property of the local utility. The utility must approve both the location and the method used to mount the APX before installation.
2.0 Installation, continued 2.1 Pole Mount Installations, continued Service Drop Enclosure Mounting Bracket 5/8" Diameter Bolts and Associated Hardware APX Enclosure NOTE: If mounting to a steel or concrete pole, use these two strap slots 4 1/2” center-center VSF Output Connector Cable Output Utility Power Input (from Service Entrance) To Service Entrance #8 AWG (Minimum) Copper Ground Wire Fig. 2-1, APX Enclosure Pole Mounting 2.1.
2.0 Installation, continued 2.2 Wall Mount Installations The wall mount version is equipped with an adaptor bracket to ensure that the APX pole mount enclosure can be mounted on a flat, vertical surface. If the wall mount bracket cannot be installed on a flat, vertical surface and positioned over a wall stud (2x4; 2x6; etc), use appropriate anchors and lag bolts. NOTE: Install and connect all optional features before you install the MTA. Procedure: 1.
2.0 Installation, continued 2.3 Pedestal Mount Installations The pedestal mount (PED) is constructed of weather-resistant steel and is ideal for ground mount applications. The PED model is supplied with a stake for soil-mounting applications. An optional concrete mounting kit may be ordered for mounting to a concrete pad. NOTE: Before you install the MTA, first install and connect optional features.
2.0 Installation, continued 2.3 Pedestal Mount Installations, continued Wing nut PED Enclosure Hood PED-Universal Bracket (UB1) PED Enclosure Base Unit Mounting Stake and Hardware Fig. 2-4, PED Enclosure NOTE: If a more secure configuration is required, mount the enclosure level with the surrounding soil (with no depression), place a wooden form around the outside of the enclosure, and pour concrete to a depth of 3 or 4 inches. ® Poured Concrete 3" to 4" Mounting Stake Cable Utility Fig.
2.0 Installation, continued 2.3 Pedestal Mount Installations, continued You can mount the PED enclosure to a concrete pad using the optional mounting bracket. The bracket mounts inside the rear of the enclosure using two hex bolts and washers. There are two 0.5" oblong mounting holes in the bracket to mount the enclosure to the concrete pad. Place two (2) 3/8" J-bolts in the pad as specified and center two conduits (utility and cable output) in front of these bolts.
2.0 Installation, continued 2.4 Rack Mount Installations The APX is also available in a rack mount version that can be installed into a standard 19" rack. NOTE: Install and connect all optional features, before installing the MTA. Procedure: 1. To mount the APX into a standard 19" rack, secure the APX to the rack rails, using 10-32 screws and cup washers (not supplied). To provide clearance when other equipment is installed in the rack, leave an inch above and below the 7” panel height. 2.
2.0 Installation, continued 2.4 Rack Mount Installations, continued TDR-M ACAT-3P LA-P Receptacle Output Connector 3-Pin Connector 2-Pin Connector Shorting Connector Power Input Cord Fig. 2-8, Option Placement and Power Connections Fig. 2-9, APX-E Rack Mount (230VAC Version) 016-030-B0-005, Rev.
2.0 Installation, continued 2.5 Shelf Mount Installations The shelf mount version of the APX consists of the standard MTA (Modular Transformer Assembly) which rests on a mounting plate (SM). You can install the mounting plate and MTA into a number of Alpha enclosures, including the PED-M, PWE or UPE. The shelf mount option also includes an input AC power extension cable (APX model only) and an APX-SPI adaptor. NOTE: Before you install the MTA, first install and connect all optional features..
2.0 Installation, continued 2.5 Shelf Mount Installations, continued APX Output to Terminal Block Hold-Down Screw Fig. 2-11, PED-M, PWE or UPE Enclosure Mounting (using terminal block output) APX Output to SPI (via SPI adaptor cable) Hold-Down Screw Fig. 2-12, PED-M, PWE or UPE Enclosure Mounting (using SPI output) 016-030-B0-005, Rev.
2.0 Installation, continued 2.6 Connecting Utility Power CAUTION! Contact your local utility for approval before you install the power supply and connect to utility power. All work should be performed by qualified service personnel in compliance with local electrical codes. NOTE: UL and NEC require the installer to connect a service disconnect switch (UL listed) between the power source and the Alpha power supply. 2.6.
2.0 Installation, continued 2.6 Connecting Utility Power, continued 2.6.1 Wiring the Enclosure Utility Service, continued CAUTION! Before you begin, turn off all utility power. Do not plug APX into AC receptacle at this time. Procedure (120VAC, 60HZ): 1. If the Modular Transformer Assembly (MTA) is installed it must be completely removed during utility wiring. To remove the transformer assembly, loosen the captive screw on the bottom of the baseplate and lift. 2.
2.0 Installation, continued 2.6 Connecting Utility Power, continued 2.6.1 Wiring the Enclosure Utility Service, continued Procedure (230VAC, 50 HZ): 1. If the MTA is installed, completely remove it prior to utility wiring. To remove the transformer assembly, loosen the captive screw on the bottom of the baseplate and lift. 2. Loosen the two captive screws securing the receptacle box. Turn receptacle box over to expose the internal wiring. 3.
2.0 Installation, continued 2.7 External Service Disconnect Position the external service disconnect between the utility power connection and the APX. For pole mount enclosures, attach it directly to the utility pole using 1/4" x 2-1/4" steel wood screws. If a utility power meter is being used, secure its mounting base in the same manner. Use a suitable conduit to interconnect the meter base, service disconnect, and power supply enclosure.
2.0 Installation, continued 2.7 External Service Disconnect, continued NOTE: Service electric ground must be unbroken to service disconnect. All local utility and building codes apply. Fig. 2-16, Service Entrance / Meter Connections, 120VAC 1 6 7 2 8 3 9 4 5 10 1 To Utility 2 Neutral (WHITE) 5 6 Ground Clamp L2 (RED) 3 Neutral Bus 7 L1 (BLACK) 4 To Enclosure Receptacle 8 Breaker 9 Ground (GREEN) 10 #8AWG (minimum) Copper Ground Wire Fig.
2.0 Installation, continued 2.8 Modular Transformer Assembly (MTA) The modular transformer assembly in the APX is designed for quick installation and removal. A captive screw in the baseplate secures the MTA into the enclosure. NOTE: Prior to installing the MTA, the enclosure must be mounted and utility and cable lines must be wired as previously described in this manual. Pole and Wall Mount Procedure: 1. Place the MTA on the baseplate.
2.0 Installation, continued 2.8 Modular Transformer Assembly (MTA), continued Fit tab on baseplate through slot in MTA. Main Transformer Assembly Output Connector Baseplate Assembly Fig. 2-18, MTA Mounted on Baseplate Assembly of PM Enclosure MTA Mounting Tab Wing Nut Universal Bracket (UB1) Receptacle Box APX Output Connector PED Enclosure Extended Mounting Bracket Fig. 2-19, Universal Bracket for PED Mount 30 016-030-B0-005, Rev.
2.0 Installation, continued 2.9 AC Output Connection Procedure: 1. Prepare the incoming coaxial cable used for the distribution of power (including external fittings not supplied by Alpha). 2. Loosen the APX brass seizure screw output fitting to accommodate the center pin of the cable connector. 3. Screw the cable connector into the output port (large hex nut fitting) located on the baseplate of the APX. Place the center pin far enough into the fitting to secure the seizure assembly. 4.
2.0 Installation, continued 2.10 Options Options for the APX can be installed easily in the field in a minimum amount of time. See Section 1.3, Optional Features, for a complete list of available options. CAUTION! Always disconnect the power supply from the unit by unplugging the power cord before you install options. NOTE: All options ordered with the unit are installed by the factory. Use qualified service personnel to install additional options.
2.0 Installation, continued 2.10 Options, continued. Lightning Arrestors Lightning arrestors provide additional protection to sensitive electronic equipment from line disturbances caused by lightning strikes, surges, and spikes. LA-M (Lightning Arrestor for the APX Series) The LA-M requires no hard-wiring and plugs directly into the 2-pin receptacle to the right to the APX’s power receptacle. Install the LA-M with the imprinted label up. Fig.
2.0 Installation, continued 2.10 Options, continued. LA-E (Lightning Arrestor for APX-E Version) The LA-E lightning arrestor is hard-wired into the receptacle housing of the APX base unit. Install the device when initially wiring the APX to the 230VAC mains. NOTE: The APX-E receptacle box does not contain a separate receptacle for the LA-E. Procedure, Wiring the LA-E lightning arrestor: 1. If the MTA is installed, remove it from the baseplate. 2.
2.0 Installation, continued 2.10 Options, continued. LA-E (Lightning Arrestor for 230VAC Rack Mount Models) The LA-E lightning arrestor mounts to the back of the front panel and is secured by the existing screw. This option must be hard-wired into the Rack Mount unit using quick-connect connectors. 1. Remove the wing nut from the screw on the LA-E mounting bracket. Position the LA-E and secure using the same screw. 2. Trim the wires supplied with the LA-E flush, leaving no copper wire exposed.
2.0 Installation, continued 2.10 Options, continued. AMM-C (Ammeter) The AMM-C Ammeter displays output current to the load and provides a visual indication of the load applied to the APX. You can also use the AMM-C to determine if an open or short circuit condition exists. The AMM-C options consists of an ammeter, pressure mounting bracket, and an 8" connecting cable with spade-lug connectors. Ammeter Meter Pressure Clip Remove this wire from fuse-holder. Mounting Slot for Ammeter 8" Wire Fig.
2.0 Installation, continued 2.10 Options, continued. Install 8" wire here Fig. 2-28, AMM-C Installation TDR-M (Plug-in Time Delay Relay) The TDR-M briefly delays power to the output during utility start-ups (after an outage has occurred). With the easily accessible potentiometer, you can vary the delay time between 10 and 60 seconds. TDR-M Installation Procedure: 1. Remove the single SEMS screw from the text side of the TDR-M (if installed). 2.
2.0 Installation, continued 2.10 Options, continued. TDR-M Mounted in Upper Slot 3-Pin Connector with Shorting Wire 3-Pin Connector SEMS Mounting Screw 2-Pin Connector ACAT-3P Mounted in Lower Slot Fig. 2-30, TDR-M and ACAT-3P Options Installed in the APX ACAT-3P (AMP Clamp) The ACAT-3P clamps dangerous spikes and surges to ground protecting sensitive electronic equipment. ACAT-3P Installation Procedure: The procedure for mounting the ACAT-3P is the same as that for the TDR-M.
2.0 Installation, continued 2.11 APX Output Voltage Reconfiguration The APX 90V series has a user-selectable output voltage between 60VAC, 75VAC, and 90VAC. Verify appropriate output voltage selection for each application. The default setting is 90VAC. To reconfigure the output voltage, move the 12-gauge black wire to the appropriate output tap on the transformer. See Table 2-2.
3.0 Operation 3.1 Start-up and Test After all utility and cable connections are complete, test the APX before placing it into service. Test Procedure: 1. Before you apply power, verify that the AC LINE circuit breaker is in the OUT (off) position. The white portion of the stem will be visible. If it is not, press the breaker button. 2. Plug the APX power plug into the receptacle provided in the internal AC receptacle box. 3.
3.0 Operation, continued 3.2 Shutdown and MTA Removal WARNING! Use heavy gloves when handling a power module that has just been taken out of service. The ferroresonant transformer generates heat and may cause burns if handled with bare hands. Shutdown Procedure: 1. Switch the external service disconnect circuit breaker to OFF. 2. Unplug the power cord. 3. Disconnect the APX output connector. 4.
4.0 Troubleshooting and Repair Symptom No output to cable (no AC line power) Probable cause • • • No output to cable (AC line power is available). • • • • Incorrect output voltage. • • • • Remedy Utility power outage AC power cord unplugged AC input circuit breaker tripped. • • • Use voltmeter to verify 120VAC (or 230VAC at receptacle) Plug in AC power cord Reset AC circuit breaker.
4.0 Troubleshooting and Repair, continued 4.2 Replacement Parts The following parts, available from Alpha Technologies, can be replaced in the field.
5.0 Specifications 5.1 APX Schematics Fig. 4-1, APX Schematic The schematic diagram displays the main components of the APX Series, as well as where the options are electrically installed in the circuit. See Section 2.10 for details on installing available options.. 44 016-030-B0-005, Rev.
016-030-B0-005, Rev. C . (BLK) (WHT) 1 xJ2 2 1 240VAC INPUT 120V OPT. LA-M 120V OPT. (BLK) 2 1 (BLK) (WHT) LIGHTNING ARRESTOR CONNECTOR J2 LIGHTNING ARRESTOR CONNECTOR 2 (WHT) GND (GRN) 60Hz J2 1 HOT (RED) 240VAC LA-M HOT (BLK) AC INPUT LIGHTNING ARRESTOR CONNECTOR 2 1 J2 1 xJ2 2 (BLK) (WHT) LIGHTNING ARRESTOR CONNECTOR 2 xJ2 2 1 120VAC INPUT EXTRA PLUG 120VAC (COVERED) 120V OPT.
5.0 Specifications, continued 5.2 APX Specifications APX 6008 E APX 6014 E Input Voltage (Nom) 120 230 120 230 220 220 230 240 Input Freq (Hz) 60 50 60 50 60 60 50 60 Input Current (A) (Max) 3.5 1.9 6.2 3.2 2.3 3.4 2 11.
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