ABB 5SGY3545L0017 IGCT control module
LocationThe SDCS-BAB-F0x is located between the power part and the control board SDCS-CON-H01.
Functions
The SDCS-BAB-F0x is a three-phase half-controlled field exciter. The field exciter is directly supplied from the
armature mains. Its firing pulses and snubbers are located on the
SDCS-PIN-H01. For connection details see next pages.
Number of threads through the hole in the T100 (e.g. 3 threads equal 2 loops).
Size Converter type Used type Used fuses T100 threads IF [A]
H1 DCS880-S01-0020 ...
DCS880-S02-0025
SDCS-BAB-F01 F100 ... F102 on SDCS-PIN-H01
KTK 25 = 25 A
4 0.3 ... 6
H1 DCS880-S01-0045 ...
DCS880-S02-0100
SDCS-BAB-F01 F100 ... F102 on SDCS-PIN-H01
KTK 25 = 25 A
3 1 ... 12
H2 DCS880-S01-0135 ...
DCS880-S02-0300
SDCS-BAB-F01 F100 ... F102 on SDCS-PIN-H01
KTK 25 = 25 A
2 1 ... 18
H3 DCS880-S01-0315 ...
DCS880-S02-0520
SDCS-BAB-F02 F100 ... F102 on SDCS-PIN-H01
KTK 25 = 25 A
1 2 ... 25
H4 DCS880-S01-0610 ...
DCS880-S02-1000
SDCS-BAB-F02 F401 ... F403 in drive
KTK 30 = 30 A
1 2 ... 30

Measuring board SDCS-PIN-H51 (H6 ... H8)
The measuring board is equipped with inputs for current measurement via CTs, high ohmic voltage
measurement and an input for a temperature sensor.
Following connectors are available:
1. Four identical channels for current measurement on the mains side via CTs connected to X231 / X232, X241 /
X242, X251 / X252 and X261 / X262.
The AC current is rectified by diodes on the measurement board.
The burden resistor is automatically scaled by the type code setting in the firmware for CT ratios of either
1:2500 or 1:4000.
2. AC voltage and motor voltage are measured by four different types of inputs.
20 VAC ... 100 VAC: Voltage measurement via X15. For this remove the zero Ohm resistors R221 ... R225.
This results in 1.2 MOhm inputs.
100 VAC ... 525 VAC: Voltage measurement via XU2, XV2, XW2, XC2 and XD2 (about 1 MOhm to ground).
526 VAC ... 1000 VAC: Voltage measurement via XU1, XV1, XW1, XC1 and XD1 (about 2 MOhm to ground).
100 VAC ... 1200 VAC: Galvanically isolated voltage measurement via X15. For this DC-DC transductor A92
and transformer T90 have to be used. X15 provides 27.4 kOhm inputs.
3. X22 is used for the DCS880 NTC temperature sensor.
4. XC12 connection to SDCS-CON-H01 (size H6) or SDCS-OPL-H01 (size H7, H8).
Settings of the SDCS-PIN-H51 for converter sizes H6 ... H8
Current coding
Rated current see the name plate of the converter.
Voltage coding
Switches
Leave switch J1 on separated (default).
Location of the SDCS-CON-H01
Size H6:
- The board is located inside the module.
Module sizes H7 and H8 consist of a control unit and a power unit:
- The board is located inside the power unit.
Size H6 H7 H8
Current transformer ratio 2500:1 2500:1 4000:1
Rated current [ADC] 900 1200 1500 2000 1900 2050 2500 3000 2050 2600 3300 4000 4800 5200
R101 ... R116 18
No cutting required.
Automatic current coding via type code setting in the firmware.
R117 33
R118 68
R119 120
R120 249
R121 560
Type code voltages (DD) 04 with +S185
05 with +S185
04 (400 V)
05 (525 V)
06 (600 V)
07 (690 V)
08 (800 V)
10 (990 V)
04 (400 V)
05 (525 V)
06 (600 V)
07 (690 V)
08 (800 V)
10 (990 V)
12 (1200 V)
Mains voltage 20 VAC ... 100 VAC 100 VAC ... 525 VAC 526 VAC ... 1000 VAC 100 VAC ... 1200 VAC
Used connectors X15 with removed
zero ohm resistors
R221 ... R225
(cut out)
XU2
XV2
XW2
XC2
XD2
XU1
XV1
XW1
XC1
XD1
X15 with DC-DC
transducer A92 and
transformer T90
Parameter settings
95.28 Set: Drive
AC voltage scaling
120 V 0 V 0 V 0 V