3 Startup Procedure and Test Run
190
YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
S4-14
Setting
Operation after Detection
Mode
0
Ramp to stop
Fault (triggers a fault relay output)
1
Coast to stop
2
Emergency stop
3
Acceleration prohibited
Minor fault
4
Frequency deceleration
Decreases the output frequency only by the frequency set in
S4-21
. This operation will repeat at the interval set by
S4-16
for as long as the output power ≥
S4-15
.
-
*1
The keypad will display
oL6
until the fault is reset.
*2
The keypad will flash
oL6
until the Run command is switched OFF, and the motor stops. The keypad will continue to flash
oL6
even
if you perform a fault reset.
■
Overload Detection
This function limits drive operation depending on how high the drive torque reference or the output current is in
order to ensure safety. If the drive detects an overload situation, then it displays
oL5 [Overload Detection (oL5)]
on the keypad. You can set 2 levels for overload detection, and 2 types of action to take after detecting overtorque.
Note:
1. The overload detection function is enabled only when the brake is released.
2. The overload detection function is disabled when the Run command source is set to the keypad.
Related Parameters
Table 3.20 Overload Detection Parameters
No.
Name
Description
S5-01
OverL Detect Operation Select 1
Enables overload detection, and sets the conditions for detection as well as
the operation to perform after an overload situation is detected.
S5-04
OverL Detect Operation Select 2
S5-02
OverL Detect Operation Select 1
Sets the level to trigger an overload.
•
V/f Control Mode
Sets the amount of current to detect overload as the motor rated current is
100%.
•
OLV Control
Sets the amount of torque to detect overload as the motor rated torque is
100%.
S5-05
Overload Detection Torque 2
S5-03
Overload Detection Time 1
If the motor current and motor torque exceed the value set in
S5-02
for
longer than the time set in this parameter, then an overload will be detected.
S5-06
Overload Detection Time 2
If the motor current and motor torque exceed the value set in
S5-05
for
longer than the time set in this parameter, then an overload will be detected.
S5-01/S5-04 Settings
Setting
Value
Detection
Conditions
Type
Operation after Detection
Drive Recovery
Ena
bled
Disa
bled
During
Run
During
Speed
Agree
ment
0
-
x
-
-
-
-
-
1
x
-
-
x
Alarm
Acceleration prohibited
When the Run command is
OFF and the motor has
stopped, the drive will return
to the state before the fault
was triggered.
2
x
-
x
-
3
x
-
-
x
Ramps to stop according to
C1-09 [Fast Stop Time]
When the Run command is
OFF and the motor has
stopped, the drive will return
to the state before the fault
was triggered.
4
x
-
x
-
5
x
-
-
x
Fault
(Triggers a fault
relay output)
Coast to Stop
Push
on the keypad or
turn ON the terminal set for
“
Fault Reset
”
to reset the fault.
6
x
-
x
-