YASKAWA U1000 Series - L2: Momentary Power Loss Ride-Thru

5.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual 301
Parameter Details
5
Setting 0: Ramp to stop
The drive stops the motor using the deceleration time 1 set in parameter C1-02.
Setting 1: Coast to Stop
The drive output is switched off and the motor coasts to stop.
Setting 2: Fast Stop
The drive stops the motor using the Fast Stop time set in parameter C1-09.
■
L1-05: Motor Temperature Input Filter Time (PTC input)
Used to set a filter on the PTC input signal in order to prevent a motor overheat fault from being mistakenly detected.
■
L1-08: oL1 Current Lvl
Sets the reference current for motor thermal overload detection for motor 1 in amperes.
If L1-08 is set to 0.0A, E2-01 (E5-03 when in PM control mode) is used as a reference for motor overload protection. If
L1-08 is set to any other, that value is used as a reference for motor overload protection.
■
L1-09: oL1 Current Lvl (for 2nd motor)
Sets the reference current for motor thermal overload detection for motor 2 in amperes.
If L1-09 is set to 0.0A, E4-01 is used as a reference for motor overload protection. If L1-09 is set to any other, that value
is used as a reference for motor overload protection.
■
L1-13: Continuous Electrothermal Operation Selection
Determines whether or not to hold the current value of the motor overload protection selection (L1-01) when the power
supply is interrupted.
Setting 0: Disabled
Setting 1: Enabled
◆ L2: Momentary Power Loss Ride-Thru
■ L2-01: Momentary Power Loss Operation Selection
When a momentary power loss occurs, the drive can automatically return to the operation it was performing prior to the
power loss based on certain conditions.
No. Name Setting Range Default
L1-05 Motor Temperature Input Filter Time (PTC input) 0.00 to 10.00 s 0.20 s
No. Name Setting Range Default
L1-08
<1> Display is in the following units.
 CIMR-U20028, 20042, and 40011 to 40027: 0.01A units
 CIMR-U20054 to 20248, and 40034 to 40930: 0.1A units
<2> Cannot be set to a value smaller than 10% of drive rated current if the current level is set to a value greater than 0.0 A.
oL1 Current Lvl
0.0 A or 10 to 150% of drive rated
current
<1> <2>
0.00 A
No. Name Setting Range Default
L1-09
<1> Display is in the following units.
 CIMR-U20028, 20042, and 40011 to 40027: 0.01A units
 CIMR-U20054 to 20248, and 40034 to 40930: 0.1A units
<2> Cannot be set to a value smaller than 10% of drive rated current if the current level is set to a value greater than 0.0 A.
oL1 Current Lvl (for 2nd motor)
0.0 A or 10 to 150% of drive rated
current
<1> <2>
0.0 A
No. Name Setting Range Default
L1-13 Continuous Electrothermal Operation Selection 0 or 1 1
No. Name Setting Range Default
L2-01 Momentary Power Loss Operation Selection 0 to 2 0
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