LS ELECTRIC SV-iS7 Series, Руководство пользователя

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Using Protection Features
336
Group Code LCD Display Parameter Setting Unit
OUT 31 – 33 Relay 1,2, Q1 6 IOL -
Note
A warning signal output can be provided in advance by the multi-function output terminal before
the inverter overload protection function (IOLT) operates. When the overcurrent time reaches 60%
of the allowed overcurrent (150%, 1 min), a warning signal output is provided (signal output at 150%
for 36 sec).
10.2.4 Keypad Command Loss
When setting operation speed using the keypad, speed command loss setting can be used to
select the inverter operation for situations when the speed command from the keypad is lost
due to the disconnection of signal cable.
Group Code LCD Display Parameter Setting Unit
PRT 11 Lost KPD Mode 2 Free-Run -
OUT 31 – 33 Relay1,2, Q1 30 Lost Keypad -
DRV 06 Cmd Source 0 Keypad -
CNF 22 Multi Key Sel 0 JOG Key -
Speed Command Loss Setting Details
Code Description
PRT-11 Lost KPD
Mode
Set the DRV-06 (command source) to “ 0 (keypad) ” , and s elect the inverter’s
operation for when there is a keypad connection problem.
Setting Function
0 None
The speed command immediately becomes the
operation frequency without any protection function.
1 Warning
Set one of the output terminals to “2 9 (Lost keypad) ” to
output a relevant warning signal when abnormal
operating conditions arise.
2 Free-Run
The inverter blocks output when the keypad connection
is lost. The motor performs in free-run condition.
3 Dec
The motor decelerates and then stops at the time set at
PRT-07 (Trip Dec Time) when the keypad connection is