Related Manuals for Saftronics DF8 PLUS Series
Summary of Contents for Saftronics DF8 PLUS Series
- Page 1 Saftronics, Inc. 5580 Enterprise Pkwy., Ft. Myers, Fl 33905 Telephone: (941) 693-7200 Fax: (941) 693-2431 P/N X010034 REV:5...
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Page 2: Table Of Contents
Eff Date: 25Aug97 1.1 Overview ...................... 1 1.2 Standard Features ..................2 2.1 Electrical ....................... 2 2.2 Electrical protection ..................3 2.3 Mechanical ....................3 2.4 Adjustments ....................4 2.5 Jumper selections ..................5 3.1 Installation ....................6 3.2 Derating data ....................6 3.3 Wiring ...................... -
Page 3: Overview
1.1 Overview DF8 "Plus" series fully regenerative four quadrant thyristor control- lers are designed to control the speed of wound field or permanent magnet dc motors from ¼ to 5 hp. These drives can also be modified to become torque control regulators. DF8 "Plus" drives are supplied in either chassis or Nema 1 enclosed formats. -
Page 4: Standard Features
• • • • • 1.2 Standard Features Isolated current feedback AC current transformers sense current in each bridge. • • • • • Impedance-isolated armature voltage feedback High impedance resistive voltage divider network used for arma- ture voltage feedback. •... -
Page 5: Electrical Protection
• • • • • 2.1 Electrical cont'd Rectifier configuration The DF8 "Plus" employs two single phase, full-wave, fully controlled, (4 SCR) bridges to allow extremely rapid motor armature reversing. • • • • • HP & Current rating • • • • • Voltage rating •... -
Page 6: Adjustments
• • • • • 2.4 Adjustments RV1 +12V reference This factory preset adjustment will very seldom need adjustment. It is used to match the +12 volt reference supply to the -12 volt supply. • • • • • RV2 Current stability This control, which has been factory preset, adjusts the stability of the current loop. -
Page 7: Jumper Selections
• • • • • 2.5 Jumper Selections J5 & J6 AC Input selection This jumper is used to select the correct AC line input voltage. J5: 240 vac (factory default) J6: 120 vac • • • • • P1 Stopping mode Note: If P1 is in the “IN”... -
Page 8: Installation
3.1 Installation The cabinet containing the DF8 Plus must be installed in an area where the following conditions exist: Ambient temperature does not exceed 40ºC (104ºF). Ambient temperature is not less than 10ºC (50ºF). Altitude above sea level is 2000 feet (600m) or less. Ambient air is reasonably clean, dry and free of flammable or combustible vapors, steam, or corrosive gases, etc. -
Page 9: Inspection
4.1 Inspection Ensure that the drive has been installed according to the previous guidelines. Also, ensure that the unit has been wired according to the schematics. Check that all connections are tight and that the motor can rotate freely. 4.2 Pre-start adjustments Before power is applied, confirm that the voltage selection plug (J5, J6) on the AA1152 card matches the supply voltage. - Page 10 SYMPTOM PROBABLE CAUSE - No Run command. Motor does not run - Speed reference at 0 volts. - Blown fuses or no AC source. - SCR shorted. - Field diodes shorted (D18). AC line fuse/fuses blown - Grounded motor armature or field.
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Page 11: Df8P-10 & Df8P-15
6.1 DF8P-10 & DF8P-15... -
Page 12: Df8P-25
6.2 DF8P-25... -
Page 13: Typical Torque Control Connection
6.3 Typical Torque control connection... -
Page 14: Motor Connections
6.4 MOTOR CONNECTIONS... -
Page 15: Df8P-10 & Df8P-15 Chassis
7.1 DF8P-10 & DF8P-15 CHASSIS DF8P-10 DF8P-15... -
Page 16: Df8P-25 Chassis
7.2 DF8P-25 CHASSIS... -
Page 17: Nema 1 Enclosed With Operators
7.3 NEMA 1 ENCLOSED WITH OPERATORS... - Page 18 Note: When replacing the controller card AA1152-1, ensure that all jumpers are configured the same way as the card being replaced.
- Page 19 If any products or services fails to meet the foregoing warranties (except title), Saftronics shall thereupon correct any such failure either, at its option, (i) by repairing any defective or damaged part or parts of the products, or (ii) by making available FOB Saftronics plant or other point of shipment, any necessary repaired or replacement parts.
- Page 20 Saftronics, Inc. 5580 Enterprise Pkwy., Ft. Myers, Fl 33905 Telephone: (941) 693-7200 Fax: (941) 693-2431...