LS ELECTRIC SV-iS7 Series, User Manual

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Learning Advanced Features
Adv
anc
ed
Feat
ur
es
245
Group Code Name LCD Display Parameter Setting Unit
acceleration time
69
Torque mode – speed
mode switching
deceleration time SPD/TRQDec T - 30.0 sec
IN
65 –
75
PX terminal setting
option
Px Define 35 Speed/Torque -
DRV
09 Control mode Control Mode 5 Vector -
10 Torque control Torque Control
0 No -
1 Yes -
Set a multi-function input Px to
“ 35 (Speed/Torque) ” .
If the terminal is on during a vector torque operation, where DRV-09 (Control Mode) is set to “ 5
(Vector) ” and DRV-10 (Torque Control) is set to “ 1 ( Yes)” , the operation switches from torque to
speed mode based on the acceleration and deceleration times set at CON-68 (SPD/TRQAcc T)
and CON-69 (SPD/TRQDec T).
If the terminal is on during a vector speed operation, where DRV-09 (Control Mode) is set to “ 5
(Vector) ” and DRV-10 (Torque Control) is set to “ 0 (No )” , the operation switches from speed to
torque mode.
8.17 Kinetic Energy Buffering
When the input power supply is disconnected, the inverter’s DC link voltage decreases, and a
low voltage trip occurs, blocking the output. A kinetic energy buffering operation uses
regenerative energy generated by the motor during the blackout to maintain the DC link
voltage. This extends the time for a low voltage trip to occur after an instantaneous power
interruption.
Group Code Name LCD Display Parameter Setting Setting range Unit
CON
77
Kinetic energy buffering
selection
KEB Select
0 None
0 – 2 - 1 KEB-1
2 KEB-2
78
Kinetic energy buffering
start level KEB Start
Lev
130 110 – 200 %
79 Kinetic energy buffering KEB Stop 135 130 – 210 %