YASKAWA A1000 Series Technical Manual page 248

5.8 L: Protection Functions
Overheat detection using a PTC can be set up by parameters L1-03, L1-04, and L1-05 as explained below.
L1-03: Motor Overheat Alarm Operation Selection (PTC input)
■
Sets the drive operation when the PTC input signal reaches the motor overheat alarm level (oH3).
No.
L1-03
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.
Setting 3: Alarm only
The operation is continued and an oH3 alarm is displayed on the digital operator.
■ L1-04: Motor Overheat Fault Operation Selection (PTC input)
Sets the drive operation when the PTC input signal reaches the motor overheat fault level (oH4).
No.
L1-04
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.
No.
L1-05
L1-13: Continuous Electrothermal Operation Selection
■
Determines whether or not to hold the current value of the electrothermal motor protection (L1-01) when the power
supply is interrupted.
No.
L1-13
Setting 0: Disabled
Setting 1: Enabled
248
Name
Motor Overheat Alarm Operation Selection (PTC input)
Name
Motor Overheat Fault Operation Selection (PTC input)
Name
Motor Temperature Input Filter Time (PTC input)
Name
Continuous Electrothermal Operation Selection
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Setting Range
0 to 3
Setting Range
0 to 2
Setting Range
0.00 to 10.00 s
Setting Range
0 or 1
Default
3
Default
1
Default
0.20 s
Default
1