H100LonWorksManual
41
Network Configuration Variable
Feature
Variable Name
Optional/
Mandatory
SNVT Type
Receive Heartbeat Time for User Object
nciUsrRcvHrtBt
Optional
SCPTmaxRcvTime
Send Heartbeat Time for User Object
nciUsrSndHrtBt
Optional
SCPTmaxSndTime
Minimum Send Time for User Object
nciUsrMinOutTm
Optional
SCPTMinOutTime
4.3.3 Receive Heart Beat Time for User Object (Mandatory)
Definition
Network config input SNVT_time_sec
nciUsrRcvHrtBt
Description
The ‘nciUsrRcvHrtBt’ variable is used to configure the maximum update interval for network input variables
‘nviUsrParaCtrl1–nviUsrParaCtrl8.’ If the ‘nviUsrParaCtrl1–nviUsrParaCtrl8’ variables are not updated for the set time
(‘nciRcvUsrHrBt’ time value + PRT-13 Lost Cmd Time), the inverter decides that the command is lost, and runs in the
operation mode set at PRT-12 Lost Cmd Mode.
Lost command time protection operates only when the ‘nciUsrRcvHrtBt’ variable is set to a value other than ‘0,’ DRV-
06 Cmd Source and DRV-07 Freq Ref Src is set to any other value than ‘Fieldbus,’ and PRT-12 Lost Cmd Mode is set to
any other value than ‘None.’
The lost command protection feature is disabled if the ‘nciUsrRcvHrBt’ variable is set to 0.0 sec.
Typical Range
0.0 – 120.0 sec (0.1 sec)
A value of 0xFFFF (6553.5 sec) is invalid data.
Default
0.0 sec (Receive Heart Beat is disabled)
Inverter Parameters Related to the ‘nciUsrRcvHrtBt’ Variable
Code Number/
Common Area Address
Code Description
Default
Settings
DRV-06
Cmd Source
Fx/Rx-1
Keypad
Fx/Rx-1
Fx/Rx-2
Int 485
FieldBus
Time Event
DRV-07
Freq Ref Src
Keypad-1
Keypad-1
