L2: Momentary Power Loss Ride-Thru - YASKAWA J1000 Technical Manual

Overload Tolerance
150
Rated Speed=100% Speed
60 sec.
100
55
50
Continuous
0
110 100120 167 200
(60 Hz)
Speed (%)
n L1-02: Motor Overload Protection Time
Sets the time it takes the drive to detect motor overheat due to overload. This setting rarely requires adjustment, but should
correlate with the motor overload tolerance protection time for performing a hot start.
No.
L1-02
• Defaulted to operate with an allowance of 150% overload operation for one minute.
• Figure 5.34 shows an example of the electrothermal protection operation time using a general-purpose motor operating at
60 Hz with L1-02 set to one minute.
n L1-13: Continuous Overload Detection Selection
Determines whether to hold the current value of the electrothermal motor protection (L1-01) when the power supply is
interrupted.
No.
L1-13 Continuous Electronic Thermal Overload Protection Selection
Setting 0: Disabled
Setting 1: Enabled
u

L2: Momentary Power Loss Ride-Thru

n L2-01: Momentary Power Loss Operation Selection
When a momentary power loss occurs the drive can be set to automatically return to the operation it was performing when the
power went out based on certain conditions.
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
A
D
B
Name
Motor Overload Protection Time
Operation time (minutes)
10
7
3
1
0.4
0.1
0 100
Figure 5.34 Motor Protection Operation Time
Name
http://nicontrols.com
Cooling Ability
Motor is designed to effectively cool
itself at speeds as low as 6 Hz.
Cold start
Hot start
Motor current (%)
150 200
E2-01 = 100% m o t o r c u r r e n t
5.7 L: Protection Functions
Overload Characteristics
Continuous operation with 100% load
from 6 Hz to 50/60 Hz.
Setting Range
0.1 to 20.0 min
Setting Range
0 or 1
Default
8.0 min
5
Default
1
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