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310 Parameters
Emergency ramp
supervision delay
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
, sets bit 8 of
, 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
The drive generates an
warning.
1
No action
No action taken.
2
(Only visible with a ZCU control unit)
Temporarily suppresses auxiliary fan faults.
Certain drive types (especially those protected to IP55) have
an auxiliary fan built into the front cover as standard. If the fan
is sticking or disconnected, the control program generates a
fault (
If it is necessary to operate the drive without the front cover
(for example, during commissioning), this parameter can be
activated to temporarily generate a warning (
) instead of the fault.
Notes:
• The parameter must be activated within 2 minutes of
control unit reboot (either by cycling the power or by
parameter
).
• The parameter will be in effect until the auxiliary fan is
reconnected and detected, or until the next control unit
reboot.
Off
Normal operation.
0
Temporarily
bypassed
The auxiliary fan fault is temporarily replaced by a warning
indication.
The setting will revert automatically to
1
No.
Name/Value
Description
Def
/
FbEq16
Summary of Contents for ACS880-01 Series
Page 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Page 4: ......
Page 12: ...12 Table of contents ...
Page 20: ...20 Introduction to the manual ...
Page 22: ...22 Using the control panel ...
Page 28: ...28 Control locations and operating modes ...
Page 146: ...146 Application macros ...
Page 502: ...502 Parameters ...
Page 606: ...606 Fault tracing ...
Page 662: ...662 Control chain diagrams ...