Yaskawa J1000 Compact V/f Control Drive - Manual (Page 229)

u L: Protection Function
L parameters provide protection to the drive and motor, such as: control during momentary
power loss, Stall Prevention, frequency detection, fault restarts, overtorque detection, and
other types of hardware protection.
No. Name Description Range Def. Mode Addr.
Hex
Pg.
L1: Motor Protection Functions
Use L1 parameters to configure motor protective functions.
L1-01
Motor
Overload
Protection
Selection
Sets the motor thermal overload protection (oL1)
based on the cooling capacity of the motor.
0: Disabled
1: General Purpose Motor (Standard Fan-Cooled)
2: Drive Dedicated Motor with a Speed Range of 1:10
NOTICE: When multiple motors are used the drive
may not be able to provide protection, even if it is
enabled in L1-01. Set L1-01 to “0” and ensure each
motor has a thermal relay installed.
0 to 2 1 S 480 107
L1-02
Motor
Overload
Protection
Time
Sets the motor thermal overload protection (oL1)
time.
A larger L1-02 time will increase the time for an oL1
fault to occur.
This parameter does not typically require adjustment.
Should be set in accordance with the overload
tolerance of the motor.
0.1 to
20.0
8.0
min
O 481 107
L1-13
Continuous
Electrothermal
Operation
Selection Determines whether or not to hold the electrothermal
value when the power supply is interrupted.
0: Disabled
1: Enabled
0, 1 1 O 46D –
L2: Momentary Power Loss
Use L2 parameters to configure drive functions for momentary power loss conditions.
L2-01
Momentary
Power Loss
Operation
Selection
Enables and disables the momentary power loss
function.
0: Disabled - Drive trips on (Uv1) fault when power
is lost.
1: Power Loss Ride-Thru Time - Drive will restart if
power returns within the Power Loss Ride-Thru
Time.
2: CPU Power Active - Drive will restart if power
returns as long as the CPU is working.
0 to 2 0 O 485 –
L3: Stall Prevention Function
Use L3 parameters to configure the Stall Prevention function.
B.2 Parameter Table
YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide 229
B
Parameter List