MITSUBISHI ELECTRIC FR-S520E - Manual (Page 119)

109
Operation selection function parameters
2
F
UNCT
IO
NS
2.10.4 Input filter time constant (Pr. 74 )
Increase the filter time constant if steady operation cannot be performed due to noise.
A larger setting results in slower 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.)
2.10.5 Reset selection/PU stop selection (Pr. 75 )
You can set the input section's built-in filter constant for an external voltage or
current frequency setting signal.
Effective for eliminating noise in the frequency setting circuit.
Parameter Name
Factory
Setting
Setting
Range
Remarks
74
Input filter time
constant
1 0 to 8 Setting is enabled when Pr. 30 = "1"
You can make reset input acceptance selection and choose the stop function
from the operation panel (PU).
Reset selection :You can choose the reset function input (RES signal) timing.
PU stop selection :When an alarm etc. occurs in any operation mode, you can
make a stop from the operation panel by pressing the .
Parameter Name
Factory
Setting
Setting
Range
Remarks
75
Reset selection/
PU stop selection
14 0, 1, 14, 15 Setting is enabled when Pr. 30 = "1"
Pr. 75
Setting
Reset Selection PU Stop Selection
0 Reset input normally enabled.
The PU stop key is invalid. Note that the is
valid only in the PU operation mode or combined
operation mode (Pr. 79 = "4"). 1
Enabled only when the protective
function is activated.
14 Reset input normally enabled.
Pressing the decelerates the inverter to a
stop in any of the PU, external and communication
operation modes. 15
Enabled only when the protective
function is activated.
STOP
RESET
STOP
RESET
STOP
RESET