LSIS LSLV-S100 User Manual

Learning Protection Features
257
6.2 Inverter and Sequence Protection
Open-phase Protection
Open-phase protection is used to prevent overcurrent levels induced at the inverter inputs due to
an open-phase within the input power supply. Open-phase output protection is also available. An
open-phase at the connection between the motor and the inverter output may cause the motor
to stall, due to a lack of torque.
Group
Code
Name
LCD Display
Parameter
Setting
Setting range
Unit
Pr
05
Input/output open-
phase protection
Phase Loss
Chk
00*
-
bit
06
Open-phase input
voltage band
IPO V Band
40
1-100V
V
* The value is displayed on the keypad as .
Input and Output Open-phase Protection Setting Details
Code
Description
Pr.05 Phase Loss
Chk,
Pr.06 IPO V Band
When open-phase protection is operating, input and output configurations
are displayed differently. When the top LCD segment is On, the
corresponding bit is set to On. When the bottom LCD segment is On, the
corresponding bit is set to Off.
Item
Bit status (On)
Bit status (Off)
Keypad
LCD keypad
Setting
Function
Bit 2
Bit 1

Output open-phase protection

Input open-phase protection

LSIS LSLV-S100 Specifications

General

Brand	LSIS
Model	LSLV-S100
Category	Controller
Language	English