Program features
77
Earth fault protection
The Earth fault protection detects earth faults in the motor or motor cable. The
protection is based on sum current measurement.
• An earth fault in the mains does not activate the protection.
• In an earthed (grounded) supply, the protection activates in 200 microseconds.
• In floating mains, the mains capacitance should be 1 microfarad or more.
• The capacitive currents due to screened copper motor cables up to 300 metres
do not activate the protection.
• Earth fault protection is deactivated when the drive is stopped.
Note:
With parallel connected inverter modules, the earth fault indication is
Settings
Parameter
.
Communication fault
The Communication fault function supervises the communication between the drive
and an external control device (for example, a fieldbus adapter module).
Settings
Parameters
.
Supervision of optional inputs/outputs
The function supervises the use of the optional analogue and digital inputs and
outputs in the application program, and warns if the communication to the input/
output is not operational.
Settings
Parameter
.
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 ...