ABB DCS880 series, Руководство по оборудованию

Страница: 107 / 164

Technical data
107
3ADW000462R0401 DCS880 Hardware manual e d
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 V
AC
... 100 V
AC
: Voltage measurement via X15. For this remove the zero Ohm resistors R221 ... R225.
This results in 1.2 MOhm inputs.
100 V
AC
... 525 V
AC
: Voltage measurement via XU2, XV2, XW2, XC2 and XD2 (about 1 MOhm to ground).
526 V
AC
... 1000 V
AC
: Voltage measurement via XU1, XV1, XW1, XC1 and XD1 (about 2 MOhm to ground).
100 V
AC
... 1200 V
AC
: 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
Size H6 H7 H8
Current transformer ratio 2500:1 2500:1 4000:1
Rated current [A
DC
]  900 1200 1500 2000 1900 2050 2500 3000 2050 2600 3300 4000 4800 5200
R101 ... R116 18 Ω
No cutting required.
Automatic current coding via type code setting in the firmware.
R118 68 Ω
R119 120 Ω
R120 249 Ω
R121 560 Ω
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 V
AC
... 100 V
AC
100 V
AC
... 525 V
AC
526 V
AC
... 1000 V
AC
100 V
AC
... 1200 V
AC
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