iS7 Ethernet Option Manual
38
12. Lost Command
(1) Inverter Keypad Parameter
Code
Number
Parameter
Name
Default
Set Value
Description
PRT-12
Lost Cmd
Mode
"None"
"None"
"Free-Run"
"Dec"
"Hold Input"
"Hold Output"
"Lost Preset"
If a Lost Command occurs,
sets up the Inverter action.
(Note1)
PRT-13
Lost Cmd
Time
1.0
0.1~120.0 sec
Sets up Lost Command
occurrence time
PRT-14 Lost Preset F
0
0~600.00 Hz
Sets up speed of Lost
Preset
(Note1) Lost Command Mode
Set Value
Function
"None"
Maintains the previous status.
"Free-Run" Lost Command Trip occurs and Free Run stopped.
"Dec"
Lost Command Trip occurs and stops by Trip
deceleration time.
"Hold Input"
Lost Command Warning occurs and operates by the
previous operation reference.
"Hold Output"
Lost Command Warning occurs and operates at the
previous operation speed.
"Lost Preset"
Lost Command Warning occurs and operates at the
speed set up in the PRT-14.
(2) Modbus TCP Lost Command Status
If the Modbus TCP receives no data from Client for 100msec, the
Option becomes Lost Command status, and after the time set up in the
PRT-13, the Inverter operates according to the settings in the PRT-12.
