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ABB ACS880 - Page 338

ABB ACS880
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Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
- / real32
If parameter 31.32 Emergency ramp supervision is set to
0%, this parameter defines the maximum time an
emergency stop (mode Off1 or Off3) is allowed to take. If
the motor has not stopped when the time elapses, the drive
trips on 73B0 Emergency ramp failed, sets bit 8 of 6.17
Drive status word 2, and coasts to a stop.
If 31.32 is set to a value other than 0%, this parameter
defines a delay between the receipt of the emergency stop
command and the activation of the supervision. It is
recommended to specify a short delay to allow the speed
change rate to stabilize.
Emergency ramp
supervision delay
31.33
1 = 1 s / 1 = 1 sMaximum ramp-down time, or supervision activation delay.0...32767 s
Warning / uint16Selects how the drive reacts when a main cooling fan fault
is detected.
Note: With an inverter unit consisting of one or more frame
R8i inverter modules with speed-controlled fans, it may be
possible to continue operation even if one main fan of a
module stops. When fan failure is detected, the control
program will automatically
set the other fan of the module to full speed
set the fans of the other modules (if any) to full speed
decrease the switching frequency to a minimum, and
disable the supervision of temperature difference
between the modules.
If this parameter is set to Fault, the inverter unit will trip
(but still carry out the actions listed above). Otherwise, the
inverter will attempt to continue operation.
Main fan fault function31.35
0
The drive trips on fault 5080 Fan.
Fault
1
The drive generates an A581 Fan.
Warning
2No action taken.No action
Fault / uint16
(Only visible with a ZCU control unit)
Selects how the drive reacts when a modules internal
auxiliary fan fault is detected.
Aux fan fault function31.36
0
The drive trips on fault 5081 Auxiliary fan not running.
Note: The fault is suppressed for two minutes after
power-up.
During this time, the drive only generates a warning, A582
Auxiliary fan not running.
Fault
1
The drive generates a warning, A582 Auxiliary fan not
running.
Warning
338 Parameters

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