LSIS SV-iS7 series User Manual

Chapter 7 Checking and Troubleshooting
G
7-3
Type Category Details Remark
Thermal
Trip
Latch
A failure occurs when resistance goes beyond
the prescribed value after the external
temperature sensor is connected to the terminal
block. Operation resumes if PRT-34 is set at
values other than 0.
-
ParaWrite
Trip
Latch
Trouble during parameter writing with the
inverter’s main body from the keypad.
-
Over Speed
Trip
Latch
A failure occurs when the motor speed goes up
above the overspeed detection level. The
detection level is set in PRT-70.
-
Dev Speed
Trip
Latch
A failure occurs when the speed that got
feedback from the encoder goes up above the
set variation value. Operation resumes if PRT-
73 is set at 1.
-
Encoder
Trip
Latch
A failure occurs when PRT-77 Enc Wire Check
is set at 1 and abnormality is detected for the
set period of time.
-
Pre-PID Fail Latch
A failure occurs when the control amount(PID
feedback) is continuously input below the set
value during Pre-PID operation by the function
setting between APP-34 ~36, which is regarded
as an abnormal state of the system.
-
G
3) Protection by KEYPAD and option
Type Category Details
Lost Keypad Level
A failure occurs when operating commands come from the
keypad or there is any problem with the communication
between the keypad and inverter’s main body in the
Keypad JOG Mode. Operation resumes if PRT-11 is set at
values other than 0. (occurs 2 seconds after the
communication is interrupted)
Lost
Command
Level
When there is a problem with the command if frequency or
operating commands are given by the terminal block or
communication command other than the keypad.
Operation resumes if PRT-12 is set at values other than 0.
Option Trip-1 Latch
When the option gets out of the option slot No. 1 after it was
inserted during power supply or when communication is not
available with the inverter.
Option Trip-2 Latch
When the option gets out of the option slot No. 2 after it was
inserted during power supply or when communication is not
available with the inverter.

LSIS SV-iS7 series Specifications

General

Brand	LSIS
Model	SV-iS7 series
Category	Inverter
Language	English