80
YASKAWA
TOEPC71061732E HV600 Drive Installation & Primary Operation
This example shows a general-purpose motor operating at the base frequency with
L1-02
set to 1.0 min.
•
Cold start
Shows the motor protection operation time characteristics when the overload occurs immediately after starting
operation from a complete stop.
•
Hot start
Shows the motor protection operation time characteristics when overload occurs from continuous operation below
the motor rated current.
Figure 12.3 Protection Operation Time for a General-purpose Motor at Rated Output Frequency
■
L1-03: Motor Thermistor oH Alarm Select
No.
(Hex.)
Name
Description
Default
(Range)
L1-03
(0482)
Motor Thermistor oH Alarm
Select
Sets drive operation when the PTC input signal entered into the drive is at the
oH3 [Motor Overheat
Alarm]
detection level.
3
(0 - 3)
0 : Ramp to Stop
The drive ramps the motor to stop in the deceleration time. Fault relay output terminal MA-MC turns ON and MB-
MC turns OFF.
1 : Coast to Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal MA-MC turns ON, and MB-MC turns
OFF.
2 : Fast Stop (Use C1-09)
The drive stops the motor in the deceleration time set in
C1-09 [Fast Stop Time]
. Fault relay output terminal MA-MC
turns ON, and MB-MC turns OFF.
3 : Alarm Only
The keypad shows
oH3
, and operation continues. The output terminal set for
Alarm [H2-01 to H2-03 = 10]
turns ON.
■
L1-04: Motor Thermistor oH Fault Select
No.
(Hex.)
Name
Description
Default
(Range)
L1-04
(0483)
Motor Thermistor oH Fault
Select
Sets the drive operation when the PTC input signal to the drive is at the
oH4 [Motor Overheat Fault
(PTC Input)]
detection level.
1
(0 - 2)
0 : Ramp to Stop
The drive ramps the motor to stop in the deceleration time. Fault relay output terminal MA-MC turns ON and MB-
MC turns OFF.
1 : Coast to Stop
The output turns OFF and the motor coasts to stop. Fault relay output terminal MA-MC turns ON, and MB-MC turns
OFF.
V/f
OLV/PM
OLV/PM
EZOLV
V/f
OLV/PM
OLV/PM
EZOLV
