YASKAWA CR700 Technical Manual page 763

0 : Ramp to Stop
The drive ramps the motor to stop according to the deceleration time. Fault relay output terminal MA-MC will
turn ON, and MB-MC will turn OFF.
1 : Coast to Stop
The drive output shuts off and the motor coasts to stop. Fault relay output terminal MA-MC will turn ON, and
MB-MC will turn OFF.
2 : Fast Stop (Use C1-09)
The drive stops the motor using the deceleration time set in C1-09 [Fast Stop Time]. Fault relay output terminal
MA-MC will turn ON, and MB-MC will turn OFF.
3 : Alarm Only
The keypad shows oH, and the drive continues operation. The output terminal set for Alarm [H2-01 to H2-05 =
10] switches ON.
4 : Operate at Reduced Speed (L8-19)
The drive performs deceleration to the level set in L8-19 [Freq Reduction @ oH Pre-Alarm] and continues
operation. oH flashes on the keypad.
The drive decelerates again if the overheat alarm is still ON after 10 s. The drive continues to decelerate every 10
s while the alarm continues to be output. If the overheat alarm is still output after the drive decelerated 10 times,
the output terminal set for oH Pre-Alarm Reduction Limit [H2-01 to H2-05 = 4D] switches ON. When the
overheat alarm stops being output during deceleration, the drive accelerates until the frequency reference valid
prior to this overheat alarm output being turned OFF is reached. The following diagram shows the output of the
overheat alarm and the drive operation at a diminished output frequency.
Figure 11.96 Drive Operation at a Diminished Output Frequency when the Overheat Alarm is Output
L8-05: Input Phase Loss Protection Sel
■
No.
Name
(Hex.)
L8-05 Input Phase Loss Protection
Sel
(04B1)
0 : Disable
1 : Enabled
The drive measures ripples in DC bus voltage to detect input phase loss.
The drive detects phase loss when power supply phase loss occurs or the main circuit capacitor becomes unusable,
which causes PF [Input Phase Loss] to show on the keypad.
Disable the detection of the input power supply phase loss function in these conditions:
• During deceleration
• The run command is not input
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable input phase loss detection.
11.9 L: Protection Function
Description
Default
(Range)
1
(0, 1)
11
763