Input Filter Time Constant (Pr. 74); Reset Selection/Pu Disconnection Detection/Pu Stop Selection (Pr. 75) - Mitsubishi Electric FR-F500 Instruction Manual

4.2.32 Input filter time constant (Pr. 74)

Pr. 74 "filter time constant"
You can set the input section's internal filter constant to an external voltage or current frequency setting signal.
Effective for eliminating noise in the frequency setting circuit.
Increase the filter time constant if steady operation cannot be performed due to noise. A larger setting
results in lower response. (The time constant can be set between approximately 1ms to 1s with the setting of
0 to 8. A larger setting results in a larger filter time constant.)
Parameter Factory
Number Setting
74
4.2.33 Reset selection/PU disconnection detection/PU stop selection
(Pr. 75)
Pr. 75 "reset selection/PU disconnection detection/PU stop selection"
You can select the reset input acceptance, PU (FR-DU04/FR-PU04) connector disconnection detection
function and PU stop function.
• Reset selection
• PU disconnection detection
• PU stop selection
Parameter Factory
Number Setting
75
<Setting>
Pr. 75
Reset Selection
Setting
0 Reset input normally enabled.
Reset input enabled only when the
1
protective function is activated.
2 Reset input normally enabled.
Reset input enabled only when the
3
protective function is activated.
14 Reset input normally enabled.
Reset input enabled only when the
15
protective function is activated.
16 Reset input normally enabled.
Reset input enabled only when the
17
protective function is activated.
Setting Range
1 0 to 8
: You can select the reset function input timing.
: When it is detected that the PU (FR-DU04/FR-PU04) connector is
disconnected from the inverter for more than 1 second, the inverter outputs
an alarm code (E.PUE) and comes to an alarm stop.
: When an alarm occurs in any operation mode, you can stop the motor from
the PU by pressing the [STOP] key.
Setting Range
14 0 to 3, 14 to 17
PU Disconnection Detection
If the PU is disconnected, operation
will be continued.
When the PU is disconnected, the
inverter output is shut off.
If the PU is disconnected, operation
will be continued.
When the PU is disconnected, the
inverter output is shut off.
95
PARAMETERS
PU Stop Selection
Pressing the [STOP] key decelerates
the motor to a stop only in the PU
operation mode.
Pressing the [STOP] key decelerates
the motor to a stop in any of the PU,
external and communication operation
modes.