Advertisement
A46, b46, r46, d04,
Speed Control 2, Speed Control 3, Speed Control 4, Speed Control 1,
d12
Speed Control (Jogging) (Integral time)
These function codes are used to configure the Automatic Speed Regulator (ASR) by selecting the PI controller or P
controller.
Setting the function code data to "999" selects the P controller.
H81, H82
Light Alarm Selection 1 and 2
Assigning "1" to bit 2 of H82 defines excessive positioning deviation in synchronous operation as a light alarm.
For details about excessive positioning deviation, refer to the PG Interface Card Instruction Manual.
For details about definition of light alarms, refer to the FRENIC-MEGA Instruction Manual, Chapter 5.
Even if a positioning control error is defined as a light alarm with H82, the error that occurred when the
inverter was servo-locked does not cause a light alarm operation but trips the inverter.
J68 to J72
Brake Signal
J95, J96
These function codes are for the brake releasing/turning-on signals of vertical carrier machines.
It is possible to set the conditions of the brake releasing/turning-on signals (current, frequency or torque) so that a
hoisted load does not fall down at the start or stop of the operation, or so that the load applied to the brake is reduced.
Releasing the Brake
When any of the inverter output current, output frequency, or torque command value exceeds the specified level of the
brake signal (J68/J69/J95) for the period specified by J70 (Brake signal (Brake-OFF timer)), the inverter judges that
required motor torque is generated and turns the signal BRKS ON for releasing the brake.
This prevents a hoisted load from falling down due to an insufficient torque when the brake is released.
Function
Name
code
J68
Brake-OFF current
J69
Brake-OFF frequency/speed 0.0 to 25.0 Hz
J70
Brake-OFF timer
J95
Brake-OFF torque
J96
Speed condition selection
(Braking conditions)
Turning the Brake ON
When the run command is OFF and the output frequency drops below the level specified by J71 (Brake signal
(Brake-ON frequency/speed)) and stays below the level for the period specified by J72 (Brake signal (Brake-ON timer)),
the inverter judges that the motor rotation is below a certain level and turns the signal BRKS OFF for activating the
brake.
Light Alarm Selection 2 (H82), Bit Assignment of Selectable Factors
Bit
Code
ero
2
Data setting range
0% to 300%:
0.0 to 5.0 s
0% to 300%
Response for brake-OFF current (Bit 2)
0: Slow response (default)
1: Quick response
Content
Positioning control error
Available only under V/f control.
Available only under vector control.
Specifies the response type for
brake-OFF current detection.
Selecting slow response inserts a
detection filter into the current detection
circuit so that the brake-OFF timing will
be slightly behind the rising edge of the
actual current.
If the delay is not negligible with
adjustments, select quick response.
9
Remarks
Advertisement
