Configuration Mode (ConF)
Parameter can be accessed in [Expert] mode
Code Nam e / De s cription Adjustment range Factory setting
InH
*
2 s
nO
LI1
...
[Fault inhibit assign.]
[No]
(nO)
In rare cases, the monitoring functions of the drive may be unw anted because they impede the purpose of the application. A
typical example is a smoke extractor fan operating as a part of a fire protection system. If a fire occurs, the smoke extractor fan
should operate as long as possible, even if, for example, the permissible ambient temperature of the drive is exceeded. In such
applications, damage to or destruction of the device may be acceptable as collateral damage, for example, to keep other damage
from occurring w hose hazard potential is assessed to be more severe.
A parameter is provided to disable certain monitoring functions in such applications so that automatic error detection and
automatic error responses of the device are no longer active. You must implement alternative monitoring functions for disabled
monitoring functions that allow operators and/or master control systems to adequately respond to conditions w hich correspond
to detected errors.
For example, if overtemperature monitoring of the drive is disabled, the drive of a smoke extractor fan may itself cause a fire if
errors go undetected. An overtemperature condition can be, for example, signaled in a control room w ithout the drive being
stopped immediately and automatically by its internal monitoring functions.
DANGER
MONITORING FUNCTIONS DISABLED, NO ERROR DETECTION
•
Only use this parameter after a thorough ris k assessment in compliance with all regulations and standards
that apply to the device and to the application.
•
Im plem ent alternative m onitoring functions for disabled m onitoring functions that do not trigger autom atic
error respons es of the drive, but allow for adequate, equivalent res ponses by other m eans in com pliance
with all applicable regulations and standards as well as the ris k as sess m ent.
•
Com m ission and tes t the sys tem with the m onitoring functions enabled.
•
During com m issioning, verify that the drive and the s ystem operate as intended by perform ing tests and
sim ulations in a controlled environm ent under controlled conditions.
Failure to follow these instructions will result in death or serious injury.
If the assigned input or bit is at 0, detected fault monitoring is active. If the assigned input or bit is at 1, fault monitoring is inactive.
Active detected faults are cleared on a rising edge (change from 0 to 1) of the assigned input or bit.
Note:
The Safe Torque Off function and any detected faults that help to prevent any form of operation are not affected by this
function.
Follow ing faults can be inhibited:
AnF
,
CnF
,
COF
,
CrF1
,
dLF
,
EnF
,
EPF1
,
EPF2
,
FCF2
,
In
FA
,
InFb
,
LFF3
,
ObF
,
OHF
,
OLC
,
OLF, OPF1, OPF2,
OSF,
OtFL,PHF, PtFL, SLF1, SLF2, SLF3,
SOF,
SPF, SSF, tJF, tnF
and
ULF.
[No]
(nO): Function inactive
[LI1]
(LI1):
Logical input LI1
[...]
(...): See the assignment conditions on page 153
CLL
[Network fault mgt]
[Freew heel]
(YES)
WARNING
LOSS OF CONTROL
If this param eter is set to
[Ignore]
(nO), fieldbus m odule com munication m onitoring is disabled.
•
Only us e this s etting after a thorough ris k as sessment in com pliance with all regulations and s tandards
that apply to the device and to the application.
•
Only us e this s etting for tes ts during commissioning.
•
Verify that com m unication m onitoring has been re-enabled before com pleting the com missioning
procedure and perform ing the final com missioning tes t.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
Parameters described in this page can be accessed by:
DRI- > CONF > FULL > FLT- > INH-/CLL-
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