Yaskawa 600V - Manual (Page 56)

n L1-02: Motor Overload Protection Time
Setting Range: 0.1 to 5.0 min
Factory Default: 1.0 min
Parameter L1-02 determines how long the motor is allowed to operate before the oL1 fault occurs when the drive is running
a hot motor at 60 Hz and at 150% of the full load amp rating (E2-01) of the motor. Adjusting the value of L1-02 can shift the
set of oL1 curves up the y axis of the diagram below, but will not change the shape of the curves.
Operation time (minutes)
Cold start
(characteristics when an
overload occurs at a
complete stop)
Hot start
(characteristics when an
overload occurs during
continuous operation at 100%)
Motor current (%)
E2-01 = 100% motor current
10
7
3
1
0.4
0.1
0 100 150 200
Figure i.18 Motor Overload Protection Time
u Precautionary Notes on External Heatsink (IP00/Open Type Enclosure)
When using an external heatsink, UL compliance requires covering exposed capacitors in the main circuit to prevent injury
to surrounding personnel.
NOTICE
Refer to the Z1000 User Manual (600 V models) TOEPYAIZ1U03 on the CD-ROM packaged with the product for more
information regarding Precautionary Notes on External Heatsink and complete product instructions necessary for proper
installation, set-up, troubleshooting and maintenance. CD part number TOECC71061615.
i.9 UL and CSA Standards
56 YASKAWA ELECTRIC TOEP YAIZ1U 02A YASKAWA AC Drive – Z1000 Safety Precautions