ABB ACS355 - Page 239

Actual signals and parameters 239
FAULT The drive trips on fault AI1 LOSS (0007) / AI2 LOSS (0008)
and the motor coasts to stop. Fault limit is defined by
parameter 3021 AI1 FAULT LIMIT / 3022 AI2 FAULT LIMIT.
1
CONST SP 7 The drive generates alarm AI1 LOSS (2006) / AI2 LOSS
(2007) and sets the speed to the value defined by
parameter 1208 CONST SPEED 7. Alarm limit is defined by
parameter 3021 AI1 FAULT LIMIT / 3022 AI2 FAULT LIMIT.
WARNING! Make sure that it is safe to continue
operation in case the analog input signal is lost.
2
LAST SPEED The drive generates alarm AI1 LOSS (2006) / AI2 LOSS
(2007) and freezes the speed to the level the drive was
operating at. The speed is determined by the average
speed over the previous 10 seconds. Alarm limit is defined
by parameter 3021 AI1 FAULT LIMIT / 3022 AI2 FAULT
LIMIT.
WARNING! Make sure that it is safe to continue
operation in case the analog input signal is lost.
3
3002 PANEL COMM
ERR
Selects how the drive reacts to a control panel
communication break.
Note: When either of the two external control locations are
active, and start, stop and/or direction are through the
control panel – 1001 EXT1 COMMANDS / 1002 EXT2
COMMANDS = 8 (KEYPAD) – the drive follows the speed
reference according to the configuration of the external
control locations, instead of the value of the last speed or
parameter 1208 CONST SPEED 7.
FAULT
FAULT Drive trips on fault PANEL LOSS (0010) and the motor
coasts to stop.
1
CONST SP 7 The drive generates alarm PANEL LOSS (2008) and sets
the speed to the speed defined by parameter 1208 CONST
SPEED 7.
WARNING! Make sure that it is safe to continue
operation in case of a panel communication break.
2
LAST SPEED The drive generates alarm PANEL LOSS (2008) and
freezes the speed to the level the drive was operating at.
The speed is determined by the average speed over the
previous 10 seconds.
WARNING! Make sure that it is safe to continue
operation in case of a panel communication break.
3
3003 EXTERNAL
FAULT 1
Selects an interface for an external fault 1 signal. NOT SEL
NOT SEL Not selected 0
DI1 External fault indication through digital input DI1. 1: Fault
trip on EXT FAULT 1 (0014). Motor coasts to stop. 0: No
external fault.
1
All parameters
No. Name/Value Description Def/FbEq