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Chapter

-Functional Description

3 - 6

DCS 500 12-Pulse Planning and Start-Up

Control structure

The illustration below shows how the 12-pulse logic is integrated in
the standard software (current controller)

TORQUE/CURRENT LIMITER
CURRENT CONTROL

CURR REF IN LIM

CURRENT CONTROL

10403

[BLOCK]

REF TYPE SEL

403

404

405

401

402

ARM CURR REF SLOPE

CURR LIM N

CURR LIM P

ARM CURR PI KP

ARM CURR PI KI

ARM CONT CUR LIM

ARM ALPHA LIM MAX

407

408

409

412

406

ARM ALPHA LIM MIN

DXN

414

413

CURR DER IN LIM

10404

ARM DIR

10402

12305

12306

12307

12308

TSYN

(To figure 4)

ARM_CUR_ACT

ARM ALPHA

10401

(To firing unit)

12301

12302

12303

12304

ARM L

ARM R

411

410

SIG11
12526

SIG12
12527

FIGURE 5(9)

0
1
2

13605

3604

[PP_CURR_SLAVE]

IREF1

1209

OPER_SYS

[TORQ REF]

FLUX REF1

[CURR REF]

[CURR STEP]

FLUX_N

Содержание DCS 500

Страница 1: ...DCS 500 PLANNING AND START UP for 12 Pulse Power Converters DC Drives 50 to 10300 A I Reg n Reg MASTER DCS 500 I Reg FEX DCF 500 Y M C1 D1 C1 D1 SLAVE DCS 500 Interphase reactor ...

Страница 2: ... 1996 ABB Industrietechnik AG All rights reserved 12 Pulse Power Converters DC Drives 50 to 10300 A PLANNING AND START UP Code 3ADW 000 040 R0101 Rev A IND AME 12p_e doc EFFECTIVE 05 Nov 96 SUPERSEDES ...

Страница 3: ...2 Dynamic response 3 3 Actual current reference values 3 3 Current reference Master Slave 3 3 Actual current Slave Master 3 4 Error messages 3 5 Control structure 3 6 Chapter 4 Planning Components 4 1 Planning hints 4 2 Transformer 4 2 Power converter 4 2 Interphase reactor 4 2 Field supply 4 2 Chapter 5 Parameters and signals Group 12 New parameters existing group 5 1 Group 111 New signals existi...

Страница 4: ...Contents ii DCS 500 12 Pulse Planning and Start Up Input AI2 6 3 Current monitoring 6 3 Slave 6 3 12 pulse mode 6 3 Output A02 6 4 Input AI2 6 4 Appendix Connection example ...

Страница 5: ...his manual Chapter 2 Overview This chapter contains information on possible applications for the 12 pulse power converters Chapter 3 Functional description This chapter describes the special functions offered by the 12 pulse power converter It shows a block diagram and contains particulars of the power section the control signals the current feedback and reference values bridge reversal dynamic re...

Страница 6: ...g exceeded Nor will the manufacturer accept liability for consequential loss or damage or indirect loss or damage The warranty period guaranteed by the manufacturer is 12 months from initial start up but not more than 24 months from the date of delivery ex works in Lampertheim If you have any questions concerning your drive system please get in touch with your local ABB representative or contact A...

Страница 7: ... damage to the equipment r additional system downtime if the specified precautionary measures are not complied with Informational notes supply additional and useful information for the operating staff Although they are not so urgent and imperative as the warnings and cautions these informational notes are nonethe less important and should be heeded ...

Страница 8: ...Chapter 1 Introduction 1 4 DCS 500 12 Pulse Planning and Start Up ...

Страница 9: ...ave power converter The 12 pulse parallel connection is obtained by feeding the slave with a mains supply offset by 30 degrees compared to the master and joining the power converter outputs on one side over an inter phase reactor The 12 pulse mode has been implemented in the standard soft ware and will not become operative until after parameterization After a few signals have been replaced for swi...

Страница 10: ...Chapter 2 Overview 2 2 DCS 500 12 Pulse Planning and Start Up ...

Страница 11: ...lock diagram The signals and parameter settings depicted in the diagram are re quired for a speed controlled 12 pulse drive with DCS 500 in a Master Slave configuration The function block shown is included in the basic software and is activated when required using Parameter 1209 ...

Страница 12: ...s polarity the actual current is con trolled down to zero until the current zero signal is received This is followed by a dead time of at least 1 ms or 2 ms in the case of power converters larger than 700 A and then bridge reversal is initiated Depending on the moment involved firing of the new bridge may take place in the same cycle but will definitely occur in the next one at the latest 3 3 ms a...

Страница 13: ...tter since the polarity is already being transmitted via Plug Connector X18 AI2 and AO2 are processed in the 5 ms task The polarity signals are transmitted in the cyclical task of 3 3 ms at 50 Hz This will likewise produce time delays amounting to two to three times the cycle time Current refer ence Master Slave Master This transmits the current reference see the block diagram in the section on Co...

Страница 14: ...lock for further processing The master is informed of the signal s polarity through X18 13 Terminals X4 8 Slave and X3 8 Master must be connected to each other using a cable of 1 mm To produce the reference potential Terminal X3 7 must be con nected to X4 6 of the two power converters Master and Slave us ing a cable of 1 mm see illustration below DCS 500 DCS 500 SDCS IOB 1 SDCS IOB 1 X3 4 X3 1 X3 ...

Страница 15: ...umber of cycles set using Parameter 3603 has elapsed both power converter bridges do not have the same polarity Error 65 causes the drive to be switched off Error 66 Current differential This error is triggered if after a number of cycles set with 3606 the currents in the two power converter units differ by an amount set with Parameter 3605 The current differential to be set in per cent using Para...

Страница 16: ...401 402 ARM CURR REF SLOPE CURR LIM N CURR LIM P ARM CURR PI KP ARM CURR PI KI ARM CONT CUR LIM ARM ALPHA LIM MAX 407 C 408 C 409 C 412 C 406 ARM ALPHA LIM MIN DXN C 414 C 413 CURR DER IN LIM 10404 ARM DIR 10402 C C 12305 12306 12307 12308 SP TSYN To figure 4 7 8 9 To figure 4 To figure 4 ARM_CUR_ACT ARM ALPHA 10401 To firing unit 12301 12302 12303 12304 ARM L ARM R C 411 C 410 SIG11 12526 SIG12 1...

Страница 17: ...rters DCS 500 standard se lected for half the motor s rated current same voltage and current a current balancing reactor interphase reactor with centre tap a field supply unit for supplying the field of the DC machine a connecting cable between the two power converters Plug Connector X18 max length 10 m to be supplied in the requisite length by ABB The data relevant to 12 pulse mode are exchanged ...

Страница 18: ...tages first connect the transformer to the mains and only then connect the power converter to the transformer Another op tion is to provide the secondary sides with an RC element The actual design choice will depend on the electrical conditions in volved like line voltage power converter input voltage power con verter rated voltage and frequency Power converters The power converters are selected o...

Страница 19: ...f cycles 3 3 ms at 50 Hz Also operative in 6 pulse mode Must have the same setting at Master and Slave 3601 P U2 SC NUM HL 200 LL 0 D 0 U REV_GAP Number of cycles which prevent a bridge reversal when the bridges have different actual currents After this a bridge reversal function will be executed irrespective of the partner unit Must have the same setting at Master and Slave 3602 P U2 SC NUM HL 50...

Страница 20: ...ter drive 3606 P U2 SC NUM HL 16383 LL 3 D 150 U PP_INH_LOG Input to switch on switch off logic with Output Signal 13616 3607 P I2 SC POINTER HL 19999 LL 0 D 0 U PP_ISO_LOG Input for IREF processing at the Slave 3608 P I2 SC POINTER HL 19999 LL 0 D 0 U PP_BRI_LOG Input to brdge reversal logic 3609 P I2 SC POINTER HL 19999 LL 0 D 0 U PP_REV_LOG Input for handling IREF polarity 3610 P I2 SC POINTER ...

Страница 21: ...only ARM_CUR_SLA Motor current Slave Evaluated signal from Pointer 3604 Scaling as with the CONV_CUR_ACT_A signal 10502 Operative only at Master 13602 P I2 SC IA1 read only CONV_CUR_ALL Sum of converter currents Master and Slave Evaluated signal from Pointers 3604 and 10501 Scaling half of each current is added together so that 100 corresponds to the system s total current operative only at Master...

Страница 22: ...tion logic 13608 P I2 SC TORQUE read only SIGDCR2_S Polarity of IREF2 for own unit 0 positive 13609 P U2 SC BOOLEAN read only SIGDCR2_BR Polarity of IREF2 for other unit 0 positive 13610 P U2 SC BOOLEAN read only BRIDGE_S Indicate bridge of own unit 0 Bridge 1 active 13611 P U2 SC BOOLEAN read only BRIDGE_SL Indicate bridge of Slave 0 Bridge 1 active Operative in Master only 13612 P U2 SC BOOLEAN ...

Страница 23: ...ic with 908 so that the units will switch each other off in the event of an error 13616 P U2 SC BOOLEAN read only X18_13 Signal from Plug Connector X18 13 operative in all modes 13617 P U2 SC BOOLEAN read only X18_14 Signal from Plug Connector X18 14 Operative in all modes 13618 P U2 SC BOOLEAN read only X18_15 Signal from Plug Connector X18 15 Operative in all modes 13619 P U2 SC BOOLEAN read onl...

Страница 24: ...Chapter 5 Parameter and Signals 5 6 DCS 500 12 Pulse Planning and Start Up ...

Страница 25: ...om the mains or at least to disable it by suppressing the firing pulses The interphase reactor can remain connected throughout the entire start up procedure Master Starting up the master power converter Isolate the slave or suppress pulses Start up the master power converter as a 6 pulse standard power converter in speed or current controlled mode depend ing on the utilization involved For the pro...

Страница 26: ...tions of master and slave to the mains Repeat start up procedure as before with the master power con verter Check the settings of both limits for continuous current flow and re optimize the current regulator parameters The current regu lator self setting functions cannot be used here Optimize the speed controller parameters in the master Set check the parameters for the monitoring functions Check ...

Страница 27: ...No offset 208 AO2_NOMINAL_VAL 4095 Calibration AO2 Input AI2 3604 PP_CURR_SLAVE 10107 Logic for current evaluation actual current from Slave to X3 7 107 AI2_CONV_MODE 10V 20mA Signal type assignment 108 AI2_HIGH_VALUE 4095 Maximum value of input signal pos values 109 AI2_LOW_VALUE 4095 Maximum value of input signal neg values Current monitoring 3605 DIFF_CURR Setting in accordance with op erating ...

Страница 28: ...values Suggestion for switch on switch off logic and error handling Master Parameter Name Value Remark 3613 PP_X18_11 10901 Ready for operation signal at X18 11 3614 PP_X18_12 10715 RUN command at X18 12 3607 PP_INH_LOG 13619 Input to switch off logic of X18 15 908 START_INHIBIT 13616 From switch off logic 12 pulse to drive logic 902 RUN1 13620 Enable for switch off logic 12 pulse to drive logic S...

Страница 29: ...ply POW 1 1 2 X99 1 2 F1 3 15A X2 4 5 X2 1 2 3 X3 1 2 3 4 5 6 7 8 9 10 X4 1 2 3 4 5 6 7 8 9 10 X6 1 2 3 4 5 6 7 8 9 10 X6 1 2 3 4 5 6 7 8 1 10 M55 0V 0V 0V 0V 0V _ _ _ _ _ K1 K20 K21 K1 ON OFF STOP K21 K20 K21 K20 K3 K1 96 1 96 2 START F6 1 2 F4 1 2 F5 1 2 230V L1 MP Field exciter unit FEX 1 2 L1 L2 X1 1 7 F3 K3 1 3 2 4 L3 M U 1 W 1 V 1 P E L1 L2 L3 1000V F1 K1 1 3 5 2 4 6 Converter module X5 50 6...

Страница 30: ...2 D O 3 D O 4 D O 5 D O 6 D O 7 X3 1 2 3 4 5 6 7 8 9 10 X4 1 2 3 4 5 6 7 8 9 10 X6 1 2 3 4 5 6 7 8 9 10 X6 1 2 3 4 5 6 7 8 1 10 0V 0V 0V 0V 0V _ _ _ _ _ K11 K11 96 1 96 2 F61 1 2 F41 1 2 F51 1 2 X96 DO8 Power supply POW 1 1 2 X99 1 2 F1 3 15A X2 4 5 X2 1 2 3 M55 M U 1 W 1 V 1 P E L1 L2 L3 F11 K11 1 3 5 2 4 6 Converter module X5 IN3 OUT3 IN1 OUT1 V5 V6 V1 V2 Communication board COM x X18 X6 7 X6 8 ...

Страница 31: ...________________________________________________ ABB Industrietechnik AG Drive Systems Division P O Box 1180 D 68619 Lampertheim Telephone 49 6206 5 03 0 Fax 49 6206 5 03 5 63 Telex 4 62 411605 ab d Ident Nr 3ADW 000 040 R0101 REV A ...

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