LSIS SV-IS7 User Manual

Basic Functions
135
Basic
Functions
Note
• To prevent a repeat fault trip from occurring when a load, such as a fan, is free-running on a
Power-on Run, set CON-71 (speed search options) bit 4 to “1”. The inverter will perform a speed
search at the beginning of the operation. If the speed search is not enabled, the inverter will
start its operation in a normal V/F pattern and accelerate the motor.
• If the inverter has been turned on without Power-on Run enabled, the terminal block command
must be first turned off, and then turned on again to begin the inverter’s operation.
6.8 Setting Acceleration and Deceleration Times
6.8.1 Acc/Dec Time Based on Maximum Frequency
Regardless of the operating frequency, acc/dec time values can be set based on the maximum
frequency. To set acc/dec time values based on the maximum frequency, set BAS-08 (Acc/Dec
reference) to “0 (Max Freq)”.
The acceleration time set at DRV-03 (Acceleration time) refers to the time required for the
inverter to reach the maximum frequency from a stopped state (0 Hz). Likewise, the value set at
DRV-04 (Deceleration time) refers to the time required to return to a stopped state (0 Hz) from
the maximum frequency.
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
DRV
03
Acceleration
time
Acc Time
75 kW and less
20.0
0.0–600.0
sec
90 kW and up
60.0
04
Deceleration
time
Dec Time
75 kW and less
30.0
0.0–600.0
sec
90 kW and up
90.0
20
Maximum
frequency
Max Freq
60.00
0.00–400.00
Hz
BAS
08
Acc/Dec
reference
Ramp T Mode
0
Max Freq
Max Freq/Delta
Freq
-
09
Time scale
Time scale
1
0.1
0–2 (0.01/0.1/1)
sec
Acc/Dec Time Based on Maximum Frequency – Setting Details
Code
Description
BAS-08 Ramp T
Mode
Set BAS-08 to “0 (Max Freq)” to setup acc/dec time based on maximum
frequency.
Configuration
Description
0
Max Freq
Set the acc/dec time based on the maximum frequency.

LSIS SV-IS7 Specifications

General

Brand	LSIS
Model	SV-IS7
Category	Inverter
Language	English