Program features
79
Figure: DC voltage control and trip limits.
According to the above figure, for a 400 V drive unit the voltage level at the
intermediate circuit in the overload area should be 560 V DC corresponding to
U
1max
(415 V), while in the underload area it should be 513 V DC corresponding to
U
1min
(380 V).
• DC overvoltage trip limit will be 1.3 * 560 = 728 V DC
• DC undervoltage trip limit will be 0.6 * 513 = 307 V DC
• High voltage control limit will be 1.24 * 560 = 695 V DC
• Low voltage control limit will be 0.82 * 560 = 459 V DC
• Brake chopper limit will be 1.2 * 560 = 672 V DC
• Charging limit will be 0.79 * 560 = 442 V DC
Drive temperature
The drive supervises the inverter module temperature. There are two supervision
limits: warning limit and fault trip limit. If the inverter module temperature exceeds
115
o
C, the warning is generated, and if the temperature exceeds 125
o
C, the fault is
generated. Signal
can be used for monitoring the temperature.
Short circuit
There are separate protection circuits for supervising the motor cable and the
inverter short circuits. If a short circuit occurs, the drive will not start and a fault
indication is given.
HIGH VOLTAGE TRIP LIMIT: 130%
HIGH VOLTAGE CONTROL LIMIT: 124%
BRAKE CHOPPER LIMIT: 120%
LOW VOLTAGE CONTROL LIMIT: 82%
CHARGING LIMIT: 79%
LOW VOLTAGE TRIPPING LIMIT: 60%
Summary of Contents for ACS 800 Series
Page 1: ...ACS800 Firmware Manual Crane Control Program N697 ...
Page 4: ......
Page 26: ...Start up and control through the I O interface 26 ...
Page 36: ...Quick start up guide 36 ...
Page 52: ...Control panel 52 ...
Page 105: ...Program features 105 Figure Control diagram for Shaft synchronisation executed in 20 ms ...
Page 128: ...Program features 128 ...
Page 150: ...Application macros control location EXT1 EXT2 150 ...
Page 228: ...Actual signals and parameters 228 ...
Page 299: ...Adaptive Programming examples for crane control 299 ...
Page 305: ...Adaptive Programming examples for crane control 305 ...
Page 318: ...Analogue Extension Module 318 ...
Page 332: ...Additional data actual signals and parameters 332 ...
Page 334: ...DriveWindow 334 ...
Page 335: ...Control block diagrams 335 Control block diagrams ...
Page 336: ...Control block diagrams 336 ...
Page 337: ...Control block diagrams 337 ...
Page 338: ...Control block diagrams 338 ...
Page 340: ...www abb com drives www abb com drivespartners Contact us 3AFE68775230 Rev E EN 2012 09 25 ...