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SAFTRONICS

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1.0 DESCRIPTION

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.

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Control block diagram

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Four quadrant operation

Note:
Arrows same direction
Motoring

Arrows opposite
Braking

Motor rotation

Torque

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Содержание DF8 PLUS Series

Страница 1: ...C line voltage when AC power is connected PressingtheSTOPpushbuttondoesnotremoveACline voltage Bothphasesmustbedisconnectedbeforeitissafetotouch motor terminals or control equipment parts Saftronics I...

Страница 2: ...Derating data 6 3 3 Wiring 6 Section 4 0 Startup 4 1 Inspection 7 4 2 Pre start adjustments 7 4 3 Starting 7 Section 5 0 Troubleshooting 8 Section 6 0 Wiring diagrams 6 1 DF8P 10 DF8P 15 9 6 2 DF8P 25...

Страница 3: ...ound field or permanent magnet dc motors from 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 Co...

Страница 4: ...8 red Forward speed reference DS5 green Reverse speed reference DS4 red Forward amplifier output DS7 green Reverse amplifier output DS6 red Run relay energized DS2 red Inhibit DS3 red Zero speed DS1 r...

Страница 5: ...e rating INPUT OUTPUT VDC ARMATURE FIELD 120 VAC J6 90 0 90 100 50 240 VAC J5 180 0 180 200 100 Short circuit rating Suitable for use on a circuit capable of delivering not more than 5000 rms symmetri...

Страница 6: ...djustment corrects for voltage changes inside the DC motor when load is applied If speed variations with load are a problem set the SPEED control knob to the desired operating speed Now load the drive...

Страница 7: ...iliary input is not affected by the accel decel circuit Auxiliary speed input With JP1 in the AUX SPD position the drive is configured to acceptanauxiliaryspeedcommand Thespeedinputwill then be accept...

Страница 8: ...its The DF8 Plus has been designed for 50 C maximum inside the enclosure When the unit is installed in poor environmental conditions it must be derated as follows 1 5 per C above 40 C or 0 75 per F ab...

Страница 9: ...the start button LED s DS2 Run and DS3 Inh should turn on and the motor should not rotate If the motor rotates see troubleshoot ing 2 Slowly rotate the speed pot so that a negative reference is appli...

Страница 10: ...d set too low Drive in current limit Tach feedback resistor incorrect if used Bad speed pot Motor unstable IR comp turned too high Voltage stability set incorrectly Current stability set incorrectly M...

Страница 11: ...SAFTRONICS 9 6 0 WIRING DIAGRAMS 6 1 DF8P 10 DF8P 15 S t o c k C h e c k c o m...

Страница 12: ...SAFTRONICS 10 6 0 WIRING DIAGRAMS CONT D 6 2 DF8P 25 S t o c k C h e c k c o m...

Страница 13: ...SAFTRONICS 11 6 0 WIRING DIAGRAMS CONT D 6 3 6 3 6 3 6 3 6 3 Typical Torque control connection S t o c k C h e c k c o m...

Страница 14: ...SAFTRONICS 12 6 0 WIRING DIAGRAMS CONT D 6 4 6 4 6 4 6 4 6 4 MOTOR CONNECTIONS S t o c k C h e c k c o m...

Страница 15: ...SAFTRONICS 13 7 0 DIMENSIONAL OUTLINES 7 1 7 1 7 1 7 1 7 1 DF8P 10 DF8P 15 CHASSIS DF8P 10 DF8P 15 S t o c k C h e c k c o m...

Страница 16: ...SAFTRONICS 14 7 0 DIMENSIONAL OUTLINES CONT D 7 2 DF8P 25 CHASSIS S t o c k C h e c k c o m...

Страница 17: ...SAFTRONICS 15 7 0 DIMENSIONAL OUTLINES CONT D 7 3 NEMA 1 ENCLOSED WITH OPERATORS S t o c k C h e c k c o m...

Страница 18: ...0 0 1 6 4 S C R N 1 0 S P 0 3 B 8 Fuse FU1 FU2 F 6 0 1 0 0 5 3 4 F 6 0 1 0 0 5 3 6 F 6 0 1 0 0 5 3 1 2 Field Bridge D 1 0 1 0 0 4 D 1 0 1 0 0 4 D 1 0 1 0 0 4 1 Fuse FU3 FU4 F 6 0 2 0 0 3 0 5 2 8 0 SP...

Страница 19: ...ifrequired promptly making the product available for correction Ifanyproductsorservicesfailstomeettheforegoingwarranties except title Saftronics shall thereupon correct any such failure either at its...

Страница 20: ...Saftronics Inc 5580EnterprisePkwy Ft Myers Fl33905 Telephone 941 693 7200 Fax 941 693 2431 S t o c k C h e c k c o m...

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