6 - 3
6. DISPLAY AND OPERATION
The following table lists the servo statuses that may be shown:
Name
Symbol
Unit
Description
Display
Range
Cumulative feedback
pulses
C
pulse
Feedback pulses from the servo motor encoder are counted and
displayed. The value in excess of
±
9999 is counted, bus since the
servo amplifier display is four digits, it shows the lower four digits of
the actual value. Press the "SET" button to reset the display value to
zero.
−
9999
to
9999
Servo motor speed
r
r/min
The servo motor speed is displayed. When the servo motor is rotating
in the reverse direction, the decimal points in the upper 3 digits are
lit. The value rounded off is displayed in
×
0.1r/min.
−
6000
to
6000
Droop pulses
E
pulse
The number of droop pulses in the deviation counter is displayed.
When the servo motor is rotating in the reverse direction, the
decimal points in the upper 3 digits are lit.
Since the servo amplifier display is four digits, it shows the lower
four digits of the actual value.
−
9999
to
9999
Cumulative command
pulses
P
pulse
The position command input pulses are counted and displayed. As
the value displayed is not multiplied by the electronic gear, it may
not match the indication of the cumulative feedback pulses. The
value in excess of
±
9999 is counted, but since the servo amplifier
display is four digits, it shows the lower four digits of the actual
value. Press the "SET" button to reset the display value to zero.
When the servo motor is rotating in the reverse direction, the
decimal points in the upper 3 digits are lit.
−
9999
to
9999
Command pulse
frequency
n
kpps
The frequency of the position command input pulses is displayed.
The value displayed is not multiplied by the electronic gear. When
the servo motor is rotating in the reverse direction, the decimal
points in the upper 3 digits are lit.
−
500
to
500
Analog speed
command voltage
Analog speed limit
voltage
F
V
(1)Torque control mode
Analog speed limit (VLA) voltage is displayed.
(2)Speed control mode
Analog speed command (VC) voltage is displayed.
−
10.00
to
10.00
Analog torque
command voltage
Analog torque limit
voltage
U
V
(1)Position control mode, speed control mode
Reverse rotation analog torque limit (TLA) voltage is displayed.
Indication range:
−
10 to +10V.
(2)Torque control mode
Reverse rotation analog torque command (TLA) voltage is
displayed.
Indication range: 0 to +10V
Refer to
the
Descrip-
tion
column.
Regenerative load
ratio
L
%
The ratio of regenerative power to permissible regenerative power is
displayed in %.
0
to
100
Effective load ratio
J
%
The continuous effective load torque is displayed.
The effective value is displayed relative to the rated torque of 100%.
0
to
300
Peak load ratio
b
%
The maximum torque generated during acceleration/deceleration,
etc.
The highest value in the past 15 seconds is displayed relative to the
rated torque of 100%.
0
to
400
Within one-revolution
position
Cy
pulse
Position within one revolution is displayed in encoder pulses.
The value returns to 0 when it exceeds the maximum number of
pulses.
0
to
8191
Multi-revolution
counter
LS
rev
The value of the multi-revolution counter is displayed.
Since the servo amplifier display is four digits, it shows the lower
four digits of the actual value.
−
32768
to
32767
Load inertia moment
ratio
dc
0.1
Times
The estimated ratio of the load inertia moment to the servo motor
shaft inertia moment is displayed.
0
to
1000
