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Drives Service & Support > Legacy > 1373
The SpeedPak Custom Field Reversing Regenerative Drives |
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| Status | Inactive: August, 1993 Discontinued: August, 1998 Obsolete: August, 2000 |
| Recommended Upgrade | Bulletin 1395 |
Specifications
- Three Phase - Six Pulse
- Power Units - 2 thru 1500 HP
The specifications as listed below apply to the basic SPEEDPAK control. These specifications may vary for a given system design due to the particular D.C. motor characteristics.
Environment - The basic power unit is designed to operate under the following conditions.
- Altitude: Up to 3300 feet above sea level
- Ambient Temperature: 40°C (104°F) maximum
- Line Voltage Variation: -5% to +10%
- Line Frequency: 50 or 60 Hz.
Speed Range - 1000:1
Note: Motor Heating and Torque - Motor design in many instances limits the amount of torque that can be produced at reduced motor speeds. This is usually dependent on type of enclosure, class of insulation, and frame size. If continuous full load torque is required at low speeds, some supplementary ventilation or a derated motor must be supplied.
All standard motor base speeds are available.
Speed Regulation - No load to full load: 0.1% by tachometer feedback
Power Conversion Efficiency - 98%
Standard Modifications Available
- Contactor-less Reversing
- Linear Acceleration
- Jog Speed - Separately Adjustable
- Thread Speed - Separately Adjustable
- Auto/Manual Relay
- Tachometer Loss "Runaway" Protection
EQUIPMENT LIST
DRIVE CONTROL ASSEMBLY
Enclosure
NEMA 1 gasketed with filtered ventilation openings
Basic A.C. Control
- Incoming A.C. power terminals
- 115 volt fused control and transformer
- Auxiliary fusing
- Field power transformer (optional)
- Run relay - Regulator relay
Basic D.C. Control
- HP rated D.C. loop contactor
- Overload protection
Regulator
- Precision regulated reference (20 volts)
- D.C. tachometer feedback
- Maximum speed adjustment - High gain OP amps
- Continuous current limit, adjustable 0-150%
- Phase loss and current unbalance protection
- Front wiring and patented screw type terminals on printed circuit boards. Boards removable without removing wiring.
- 12 channel circuit analyser with meter and selector switch
- No interaction between drive adjustments
Armature Power Unit
- 6 SCR full wave bridge
- Pulse distribution matrix and amplifier
- Transient voltage filters
- Integral air fan and flow switch (above 10 HP)
- Protective metal enclosure
Field Power Units
- Push-Pull reversing SCR controlled field supply
- Transient voltage filters
- Inherent field loss prectection and field economizing
Isolation Transformer - Standard
- Three phase 480 volt primary
- Secondary voltage as required for specified armature voltage
- NEMA 1 enclosed for separate mounting
Industrial - Type Drive Motor
- Designed for use with static power supply - available with a wide variety of optional features