L4: Speed Detection - YASKAWA CIPR-GA50C series Technical Manual

12.9 L: Protection Functions
Makes the best motor acceleration rate for start up. If you set this parameter to 1, it will make acceleration
smoother, but it can also increase the acceleration time to be longer than the set time. If the drive detects oC
[Overcurrent] faults immediately after acceleration starts, set this parameter.
0 : No
1 : Yes
Note:
Set L3-01 = 3 [Stall Prevention during Accel = Current Limit Method] to enable this function.
◆

L4: Speed Detection

L4 parameters set the output of signals to the MFDO terminals, for example frequency agree and speed detection.
■
L4-01: Speed Agree Detection Level
No.
Name
(Hex.)
L4-01 Speed Agree Detection
Level
(0499)
Sets the level to detect speed agree or motor speed when H2-01 to H2-03 = 2, 3, 4, 5 [MFDO Function Selection
= Speed Agree 1, User-set Speed Agree 1, Frequency Detection 1, Frequency Detection 2].
■
L4-02: Speed Agree Detection Width
No.
Name
(Hex.)
L4-02 Speed Agree Detection
Width
(049A)
Sets the width to detect speed agree or motor speed when H2-01 to H2-03 = 2, 3, 4, 5 [MFDO Function Selection
= Speed Agree 1, User-set Speed Agree 1, Frequency Detection 1, Frequency Detection 2].
■
L4-03: Speed Agree Detection Level(+/-)
No.
Name
(Hex.)
L4-03 Speed Agree Detection
Level(+/-)
(049B)
Sets the level to detect speed agree or motor speed when H2-01 to H2-03 = 13, 14, 15, 16 [MFDO Function
Selection = Speed Agree 2, User-set Speed Agree 2, Frequency Detection 3, Frequency Detection 4].
■
L4-04: Speed Agree Detection Width(+/-)
No.
Name
(Hex.)
L4-04 Speed Agree Detection
Width(+/-)
(049C)
Sets the width to detect speed agree or motor speed when H2-01 to H2-03 = 13, 14, 15, 16 [MFDO Function
Selection = Speed Agree 2, User-set Speed Agree 2, Frequency Detection 3, Frequency Detection 4].
■
L4-05: Fref Loss Detection Selection
No.
Name
(Hex.)
L4-05 Fref Loss Detection
Selection
(049D)
Enables the detection of a loss of an analog frequency reference when MFAI terminals (A1 and A2) input the
frequency reference. Set H2-01 to H2-03 = C [MFDO Function Selection = Frequency Reference Loss] to enable
this function.
If the frequency reference is less than 10% in 400 ms, the drive detects frequency reference loss.
690
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the level to detect speed agree or motor speed.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the width to detect speed agree or motor speed.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the level to detect speed agree or motor speed.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the width to detect speed agree or motor speed.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the operation when the drive detects a loss of frequency reference.
Description
Description
Description
Description
Description
YASKAWA SIEPC71061753A GA500 Technical Manual
Default
(Range)
Determined by A1-02
(Determined by A1-02)
Default
(Range)
Determined by A1-02
(Determined by A1-02)
Default
(Range)
Determined by A1-02
(Determined by A1-02)
Default
(Range)
Determined by A1-02
(Determined by A1-02)
Default
(Range)
0
(0, 1)