30
Parameter
List
Parameter
Descriptions
Selection:
1 - 99 sec ★ 1 sec
Function:
Sets the duration for the bus time out function.
If the set time passes without the drive
receiving a LonWorks message addressed to
In addition to the parameters listed above, the
drive's control terminals issue digital inputs that
control functions similar to those provided by
nviStartStop, nviResetFault, and
nviControlWord. Parameters 503, 504, 505,
506, 507 and 508 determine how the drive
responds to commands for coasting stop, DC
brake, start, reverse, setup select and preset
reference select. See Network Drive Control
Input in this manual and the TR1
Series VFD
Installation and Operation Manual for more
information.
Alarm
Descriptions
Alarm numbers and descriptions that
correspond to nvoAlarmWord bit numbers are
shown in the table below. See the TR1 Series
Bit number Alarm number Alarm Description
02 22 AMA failed
03 18 HPFB timeout
04 17 Serial communication timeout
05 16 Short circuit
06 15 Switch mode fault
07 14 Ground fault
08 13 Overcurrent
09 12 Current limit
10 11 Motor thermistor
11 10 Motor overtemperature
12 9 Inverter overload
13 *8 Undervoltage
14 **7 Overvoltage
15 4 Mains failure
VFD Installation and Operation Manual for more
details.
Conversion Data
PNU Parameter Description Default Value Range Index Type
803 Bus time out 1 sec 1 - 99 sec. 0 3
804 Bus time out function no function 0 3
805 Bit 10 function Bit 10 = > CTW ACT 0 6
927 Parameter edit Enable 0 6
928 Process control Enable 0 6
970 Edit setup Active Setup 0 5
971 Store data values no action 0 5
also bit 10 of nvoWarning 1
also bit 11 of nvoWarning 1
it, the drive will take the action specified in
parameter 804, Bus Time Out Function.
NOTE
After time out counter is reset it
must be triggered by valid control
word before new time out can be
activated.
✭ Indicates factory default setting.
