Acs800 Mf

Steve Weingarth

© Company name - 1 2/24/2004

n

Insert image here

ACS800 Master/Follower Brake Control Brake Chopper

ACS800 Master/Follower n

n

Master Drive Configurations n

Speed Regulated

n

Torque Regulated

Follower Drive Configurations n

Speed Follower n

Used when motors are NOT coupled together

n

Speed Follower w/ Droop possible n

n

Torque Follower n

© ABB, Inc - 2 -

n

Used when motors are loosely coupled together

Used when motors are tightly coupled together

National Oil Well Configuration n

Master – Speed Regulated

n

Follower – Torque Follower

Speed Follower Master Drive Speed Ref

Accel/Decel

Speed Regulator

Torque Regulator

Accel/Decel

Speed Regulator

Torque Regulator

Follower Drive

© ABB, Inc - 3 -

Speed Ref

Torque Follower Master Drive Speed Ref

Accel/Decel

Speed Regulator

Torque Regulator

Accel/Decel

Speed Regulator

Torque Regulator

Follower Drive

© ABB, Inc - 4 -

Speed Ref

ACS800 Master Follower

© ABB, Inc - 5 -

n

Link is made with Fiber Optic connection

Page 9 of Master Follower Supplement

© ABB, Inc - 6 -

ACS800 Master Follower

Page 29 of Master Follower Supplement

© ABB, Inc - 7 -

ACS800 ACS800 Torque Follower

Page 30 of Master Follower Supplement

© ABB, Inc - 8 -

ACS800 Speed Follower

Page 31 of Master Follower Supplement

© ABB, Inc - 9 -

ACS800 Typical Setting for Master 60.01 MASTER LINK MODE

MASTER

60.02 TORQUE SELECTOR

TORQUE

60.03 WINDOW SEL ON

NO

60.04 WINDOW WIDTH POS

0.0 rpm

60.05 WINDOW WIDTH NEG

0.0 rpm

60.06 DROOP RATE

0%

60.07 MASTER SIGNAL 2

202

(Speed Ref 2)

60.08 MASTER SIGNAL 3

213

(Torque Ref Used)

© ABB, Inc - 10 -

ACS800 Typical Setting for Torque Follower TYPICAL

National Oil Well

10.01 EXT1 STRT/STP/DIR

COMM.CW

COMM.CW

10.02 EXT2 STRT/STP/DIR

COMM.CW

COMM.CW

11.02 EXT1/EXT2 SELECT

EXT2

PARAM 11.09

11.03 EXT REF1 SELECT

COMM.REF

COMM.REF

11.06 EXT REF2 SELECT

COMM.REF

COMM.REF

16.01 RUN ENABLE

COMM.CW(3) DI3

16.04 FAULT RESET SEL

COMM.CW(7) COMM.CW(7)

30.18 COMM FAULT FUNC

FAULT

FAULT

30.19 MAIN REF DS T-OUT

1.00 s

4.00 s

© ABB, Inc - 11 -

ACS800 Typical Setting for Torque Follower TYPICAL

National Oil Well

60.01 MASTER LINK MODE

FOLLOWER

FOLLOWER

60.02 TORQUE SELECTOR

ADD

TORQUE

60.03 WINDOW SEL ON

YES

NO

60.04 WINDOW WIDTH POS

30.0 rpm

0.0 rpm

60.05 WINDOW WIDTH NEG

30.0 rpm

0.0 rpm

60.06 DROOP RATE

0%

0%

© ABB, Inc - 12 -

ACS800 Mechanical Brake Control - Typical

Page 75 of Firmware Manual

© ABB, Inc - 13 -

ACS800 Mechanical Brake Control - Timing

Page 76 of Firmware Manual

© ABB, Inc - 14 -

ACS800 Typical Setting for Brake Control 42.01: BRAKE CTRL

ON

42.02: BRAKE ACKNOWLEDGE

OFF

42.03: BRAKE OPEN DELAY [s]

0.5 sec

42.04: BRAKE CLOSE DELAY [s]

0.5 sec

42.05: ABS BRAKE CLS SPD [RPM]

10 rpm

42.06: BRAKE FAULT FUNC

WARNING

42.07: STRT TORQ REF SEL

MEMORY

42.08: START TORQ REF [%]

Default

42.09: EXTEND RUN T [s]

Default

42.10: LOW REF BRK HOLD [s]

Default

ACS800 Brake Control

© ABB, Inc - 15 -

n

NOW PLC actually opens the brake n

ACS800 controls the timing of the signals

n

PLC monitors Brake Open Status in Aux Status Word 3, bit 6

ACS800 Brake Chopper n

Chopper used is the NBRA-669 n

Jumper Selects Voltage Rating n

n

Possible to parallel choppers n

© ABB, Inc - 16 -

NBRA-669 should always default to >500N

Fiber Optic link synchronizes choppers

ACS800 Brake Chopper

© ABB, Inc - 17 -

n

Jumper Selection

ACS800 Brake Chopper

© ABB, Inc - 18 -

n

Parallel Choppers

ACS800 Brake Chopper

© ABB, Inc - 19 -

n

Control Connections

ACS800 Brake Chopper

© ABB, Inc - 20 -

n

WARNING! In a chopper failure, always switch off the power supply to the ACS 800. This is the only way to guarantee safe operation in case of a chopper failure since the chopper is unable to disconnect the resistor from the intermediate circuit.

ACS800 Setting for Brake Chopper Turn off Overvoltage Control 20.05: OVERVOLTAGE CTRL

OFF

© ABB, Inc - 21 -

Group 27 parameters left at default 27.01: BRAKE CHOPPER CTL

OFF

27.02: BR OVERLOAD FUNC

NO

27.03: BR RESISTANCE [Ohm]

5.999804

27.04: BR THERM T CONST [s]

87.49962

27.05: MAX CONT BR POWER [kW]

15.99908

27.06: BC CTRL MODE

AS GENERATOR