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Parameters 279
Emergency ramp
supervision delay
If parameter
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
, and coasts to a stop.
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.
0 s
0…32767 s
Maximum ramp-down time, or supervision activation delay.
1 = 1 s
Selects 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.
, the inverter unit will trip (but
still carry out the actions listed above). Otherwise, the inverter
will attempt to continue operation.
Fault
The drive trips on fault
.
0
Warning
warning.
1
No action
No action taken.
2
(Only visible with a ZCU control unit)
Selects how the drive reacts when an auxiliary fan fault is
detected.
Fault
The drive trips on fault
.
Note:
The fault is suppressed for two minutes after power-up.
During this time, the drive only generates a warning,
0
Warning
The drive generates a warning,
1
No.
Name/Value
Description
Def
/
FbEq16
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...