Alpha LECTRO Mini-Mite Ferro User manual

Mini-Mite Ferro Power Supply
30/60Vac Output
Operator’s Manual
Effective: May, 2015
®
Alpha Technologies

Power
Alpha Technologies ®

3
CM003101 Rev. B1
Photographs contained in this manual are for illustrative purposes only.
These photographs may not exactly match your installation.
Review the drawings and illustrations contained in this manual before
proceeding. If there are questions regarding the safe operation of this powering
system, please contact Alpha Technologies or your nearest Alpha representative.
Alpha denies responsibility for any damage or injury involving its enclosures,
power supplies, generators, batteries, or other hardware when used for an
unintended purpose, installed or operated in an unapproved manner, or
improperly maintained.
Mini-Mite Ferro Power Supply — 30/60Vac Output
Operator’s Manual
Effective: May, 2015
CM003101, Rev. B1 — © 2015 Alpha Technologies
Contacting Alpha Technologies:
For general product information and customer service
1-800-863-3930
(7:00 AM to 5:00 PM Pacic Time)
For complete technical support
1-800-863-3930
(7:00 AM to 5:00 PM Pacic Time, or 24/7 Emergency Support)
NOTE
NOTE
NOTE

4 CM003101 Rev. B1
Table of Contents
Warnings & Cautions ........................................................................5
Unpacking and Inspection.................................................................6
1. OVERVIEW
1.1 Introduction..............................................................................7
2. SPECIFICATIONS
2.1 Nominal ...................................................................................8
2.2 General....................................................................................8
3. CABINET INSTALLATION
3.1 Mounting..................................................................................9
3.2 Electrical Connections .............................................................10
3.3 Disassembly ............................................................................10
4. OPERATION
4.1 Changing Output Voltage ........................................................11
4.2 Service ....................................................................................12
4.3 Maintenance ............................................................................13

5
CM003101 Rev. B1
A “Warning” identies conditions and actions that pose a hazard to the user.
This power supply and its associated hardware (enclosure, cabling) may contain
equipment(s), or parts which have accessible hazardous voltage or currents.
To avoid injury:
• This power supply and its associated hardware must be serviced by authorized
personnel only.
• Verify AC line power is de-energized prior to installation or service.
• Remove all conductive jewelry or personal equipment prior to servicing equipment,
parts, connectors, wiring, or batteries.
• Read and follow all installation, equipment grounding, usage, and service instructions
included in this manual.
Enclosure, equipment or parts may be damaged or cause damage if used or
installed improperly.
To avoid damage:
• An agency-approved service disconnect switch with overcurrent protection must be
provided by the installer. It shall be connected between the power source and the
power supply. Subject to local codes, the service disconnect switch shall be in an
outdoor enclosure rated @ 120Vac with a noninterrupted neutral termination and
shall have a 15A circuit breaker. Due to the ferroresonant transformer, the circuit
breaker should be a high inrush magnetic type that will withstand short duration
inrush currents
• Overcurrent protection and disconnecting means for the AC output are to be
supplied by the installer as required by local codes.
• Use #16AWG minimum Copper, 75C, for all utility input wiring. Prior to installation,
verify that the output voltage from the enclosure or its equipment match the voltage
requirements of the connected equipment (load).
• Verify the enclosure which houses the power supply has sufcient ventilation to
maintain the power supply in its specied operating temperature range (-40°C to
+55°C).
• Do not operate the power supply in an environment containing corrosive or
conductive gas, vapor, liquid, or dust.
• When servicing the power supply, use only specied replacement parts.
• Servicing is to be performed only by authorized personnel.
WARNINGS & CAUTIONS
A “Caution” identifies conditions and actions that may damage the power
supply or associated equipment.
NOTE
WARNINGS
CAUTIONS
NOTE

6 CM003101 Rev. B1
Unpacking and Inspection
Carefully remove the module or unit from its shipping
container. Inspect the contents. If items appear to be
damaged or missing, contact Alpha Technologies and the
shipping company immediately. Most shipping companies
have only a short claim period. Verify the following items
have been included:
1. System module or unit
2. Operator’s Manual
3. Any other ordered options
Save the original shipping container.
In the event a module or unit needs to be returned for
service, it should be packaged in its original shipping
container. If the original container is unavailable, pack the
unit with at least three inches of shock-absorbing material
on all sides and is properly supported to prevent shipping
damage.
Do not use popcorn-type packing material. Alpha
Technologies is not responsible for damage caused
by the improper packaging of returned units.
After inspection by the shipping company and a written
appraisal of the damage has been received, contact Alpha
Technologies and request a return authorization number.
Return items promptly with the return authorization and
invoice numbers clearly shown on the shipping label.
Alpha Technologies will either repair or replace the
equipment depending upon the extent of damage.
NOTE
Warranty Notice
Contact Alpha Technologies for further information regarding
warranty details for this product.

7
1. Introduction
CM003101 Rev. B1
The Lectro Mini-Mite Ferro Power Supply brings the CATV
industry a new performance standard. Lectro’s proprietary
design provides excellent regulation over varying AC input
and load conditions, providing the user with the most efcient
and trouble-free ferroresonant system on the market. Careful
physical and thermal design ensure a longer life, while
allowing chassis replacement with minimum tools and effort.
This manual provides information related to the installation,
operation, and service of specic Lectro equipment. For
personnel training or specic problems or questions relating
to applications please call 1-800-863-3930 and ask for
customer service, or 1-800 863-3364 and ask for Technical
Support. The information in this manual is restricted to
customers of Alpha Technologies, and use by unauthorized
persons is strictly prohibited.
Prior knowledge of good CATV system construction practice
and a working knowledge of electrical safety practices
are minimum qualications for installation and operation.
However, for equipment servicing, the technician should also
be well versed in basic electronics.
It is recommended that you carefully read this manual prior
to leaving your ofce to perform any work on the Lectro
Mini-Mite Ferro Power Supply.

8 CM003101 Rev. B1
2. Specications
2.2 General Specications
2.1 Nominal Specications
Electrical Specications
AC Input Voltage Range 120 Vrms
AC Input Voltage Regulation + 10% / - 20%
AC Output Frequency Range 60Hz
AC Output Voltage 60Vrms
AC Output Voltage Regulation @ Nominal Frequency ±3%
Efciency @ Full Load 80%
Output Congurations 2A / 4A
Input Current, Nominal (Amps) 1.3 / 2.8
General Specications
Overload Protection
Ferroresonant Output Foldback Limited @ 150% of output rating
Environmental
Operating Range -40°C to +55°C (-40°F to +131°F)
Operating Storage -40°C to +55°C (-40°F to +131°F)
Humidity 0 to 95% (noncondensing)
Mechanical Specications
2A 4A
Height (in / mm) 8.25 / 210
Width (in / mm) 6.19 / 158
Depth (in / mm) 4.00 / 102
Weight (lb / kg) 10 / 4.5 13 / 5.9

9
3. Installation
CM003101 Rev. B1
3.1 Mounting
The Mini-Mite Ferro Power Supply is designed to be wall-
mounted using the provided bracket.
installation procedure:
1. A minimum clearance of 1.75” should be allowed
above, below, and along the sides and front of the unit
for adequate cooling.
2. Attach mounting bracket in desired location.
3. Mount on the mounting bracket as required. Slide the
Mini-Mite into position on the bracket.
Lid Rivet
Keyed Slot
Press Unit
Against
Plate And
Slide Down
to Engage
Tighten
Screw From
Inside
Screwhead
Rear View Side View
Notch

10 CM003101 Rev. B1
3. Installation
3.2 Electrical Connections
1. Remove the front cover with the key
provided.
2. Install the output cable connector in
the chassis adapter provided on the
bottom of the cabinet.
3. Plug the AC line cord into a 120Vac
utility receptacle.
4. If desired, a direct earth ground may
be connected using the small copper
lug on the bottom of the unit.
5. Replace the cover.
The Mini-Mite is now operational.
3.3 Disassembly
disconnection procedure:
1. Unplug the unit from the utility outlet.
2. Disconnect the output connector.
3. Remove the unit from the mounting bracket.

11
4. Operation
CM003101 Rev.B1
4.1 Changing the output voltage (PSF-MMP-AXX only)
The Lectro Mini-Mite Ferro Power Supply is designed to
provide regulated 30V or 60V from the 120Vac power line.
The power output is normally congured for 60V and can be
changed to provide 30V via the following procedure.
60V – 30V conVersion procedure
1. Verify AC is disconnected.
2. Cut 60V wire 2” from end of heat shrink tubing, strip 1/
2” from end.
3. Remove the wire nut from the 30V wire, twist ends of
60V and 30V wires together. Secure 60V/30V splice
with wire nut.
4. Cover end of 60V wire with customer-supplied wire nut.
5. Restore AC power.
6. Measure voltage between capture screw and chassis.
The measured value should be 30VAC.
7. Secure cabinet. Unit is ready for 30V operation.
60VAC operation 30VAC operation
60V Wire
30V Wire
30VAC between
screw and chassis
NOTE
All wire colors are black. Ensure that the wire is correct (30V or
60V) when servicing the power supply.

12 CM003101 Rev. B1
4. Operation
4.2 Service
Part of the unit’s thermal design is heat conduction
from the transformer brackets to the cabinet of the
power supply. A thin coating of silicone grease is
applied to the bracket contact area during
manufacture. Be sure to apply a fresh coat of silicone
grease and tighten all four retaining nuts securely
during reassembly.
Lethal voltages are present within the chassis
when the unit is in operation. For safety, be certain to
unplug the input cord and the output cable connector
before attempting service.
NOTE
CAUTION

13
4. Operation
CM003101 Rev.B1
4.3 Maintenance
Proper operation and longer system life can be ensured by
performing the following maintenance:
1. Before opening the cabinet, inspect it for external
damage or tampering, including the grounding circuit.
2. Unlock and open the cabinet.
3. Inspect the air vents for obstructions
4. Inspect the connectors and cable for damage or
corrosion.
5. Close and relock the cabinet.



Power
Alpha Technologies ®
Due to continuing product improvements, Alpha reserves the right to change specications without notice.
Copyright © 2015 Alpha Technologies, Inc. All rights reserved. Alpha is a registered trademark of Alpha Technologies.
CM003101 Rev.B1
Corporate
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