Jump Frequencies - YASKAWA E7U Programming Manual

Parameter
Parameter Name
No.
Digital Operator Display
Frequency Reference Upper
d2-01 Limit
Ref Upper Limit
Frequency Reference Lower
d2-02 Limit
Ref Lower Limit
Master Speed Reference
d2-03 Lower Limit
Ref1 Lower Limit
Jump Frequency 1
d3-01
Jump Freq 1
Jump Frequency 2
d3-02
Jump Freq 2
Jump Frequency 3
d3-03
Jump Freq 3
Jump Frequency Width
d3-04
Jump Bandwidth
d4-01 MOP Ref Memory
Trim Control Level
d4-02 Trim Control Lvl
Table A.1 Parameter List (Continued)
Description
Reference Limits
Determines maximum speed command, set as a percentage of
parameter E1-04. If speed command is above this value, actual
Drive speed will be limited to this value. This parameter applies to
all speed command sources.
Determines minimum speed command, set as a percentage of
parameter E1-04. If speed command is below this value, actual
Drive speed will be set to this value. This parameter applies to all
speed command sources.
Determines the minimum speed command, set as a percentage of
parameter E1-04. If speed command is below this value, actual
Drive speed will be set to this value. This parameter only applies
to analog inputs A1 and A2.

Jump Frequencies

These parameters allow programming of up to three prohibited
frequency points for eliminating problems with resonant vibration
of the motor / machine. This feature does not actually eliminate the
selected frequency values, but will accelerate and decelerate the
motor through the prohibited bandwidth.
This parameter determines the width of the deadband around each
selected prohibited frequency point. A setting of "1.0" will result in
a deadband of +/- 1.0 Hz.
MOP and Trim Control
0: Disabled
1: Enabled
Set the percentage of maximum speed to be added or subtracted via
multi-function inputs.
Parameters A - 9
Setting Factory Menu
Range Setting Location
0.0 to 110.0 100.0% Quick Setting
0.0 to 110.0 0.0% Quick Setting
0.0 to 110.0 0.0% Programming
0.0Hz Programming
0.0 to 200.0 0.0Hz Programming
0.0Hz Programming
0.0 to 20.0 1.0Hz Programming
0 or 1 0 Programming
0 to 100 10% Programming