ABB ACS2000 DFE User Manual page 46

46 ACS2000 DFE UM 3BHS360367 ZAB E01 REV. K
The circuit board is fitted with a Motorola DSP pro-
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References
cessor and features two PPCS and eight DDCS
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communication channels. The communication
3-3 AMC circuit-board
location
channels are used for high speed data transfer via
the INT circuit boards to the Phase-INT circuit
boards inside the phase modules.
Control tasks
The AMC circuit board has specific control and
closed-loop tasks assigned to it. It processes drive
and status information, performs the speed and
torque control tasks, and monitors the operation
of the drive.
The AMC circuit board continuously monitors all
relevant drive variables (eg, speed, torque, current,
voltage). Pre-programmed protection functions
ensure that these variables remain within certain
limits in order to maintain safe operation of the
drive. These internal functions are not programma-
ble by the user.
Optionally, the AMC circuit board can monitor sig-
nals from external equipment.These can be acti-
vated and adjusted with Parameters.
Other general control, protection and monitoring
tasks regarding the whole drive include control and
monitoring of:
• Main circuit breaker
• Grounding switch
• Door locking system
• Cooling system
Parameters
The control system is configured, customized, and
tuned with a set of application parameters. The
application parameters are organized in functional
groups and have factory-set default values.
1
2
1. AMC circuit board
2. INTerface circuit board
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3-3
The default parameter values are adjusted during
commissioning to the specific application of the
drive in order to activate the specific control, mon-
itoring and protection functions for the driven pro-
cess, and to define the signals and data
transferred between drive and external equipment.
The parameters and parameter groups referred to
in the signal allocation tables in this chapter are
valid for drives with software version LDOI6xxx
revision "-" and later versions.
For further information on the parame-
ters for signal allocation, signal type
selection, signal inversion, scaling, and fil-
tering, see signal and parameter table.
Main circuit breaker
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The main circuit breaker (MCB) is
an important switching and pro-
tection device of the drive system.
Therefore it must only be con-
trolled and monitored by the
drive.
For further information, see
• Main circuit breaker engineering
guideline
• Important note on main circuit
breaker