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5 MONITORING
5.1 Explanation of monitor signals
5
MONITORING
Summary
The status of servo motor speed, torque, bus voltage, and other areas of the servo amplifier can be checked with the
engineering tools. This chapter shows an example when using MR Configurator2 as the engineering tool.
Items that can be monitored with "Display all" can also be monitored by objects. For details, refer to MR-JET-G User's Manual
(Object Dictionary).
5.1
Explanation of monitor signals
The name and description of the monitor signals used in the servo amplifier and the signal block diagram are as follows.
Name and description of the monitor signals
The following shows the types of monitor signals.
This chapter shows the name and description of each monitor signal. The unit and other areas may differ depending on the
control mode and display method. For "Display all" and the display of the graph in the monitor, refer to the following.
Page 118 Checking with MR Configurator2
Monitor signal (analog)
On MR Configurator2, the status of the monitor signal (analog) can be obtained by using the "Display all" function and the
graph function.
Refer to the list in this section for the signals which can be obtained with the "Display all" function and the graph function.
MONITOR
Description
Monitor signal (analog)
The data, such as the servo motor speed, indicated in an analog form
Monitor signal (digital)
The data, such as INP (In-position), indicated by on and off of bits
Name
Description
Availability
Display all
Graph
function
Cumulative feedback pulses
The feedback pulses from the servo motor encoder are counted and displayed.
In reverse rotation, the value is negative.
Servo motor speed
The servo motor speed is displayed.
Droop pulses
The number of droop pulses in the deviation counter is displayed. In reverse rotation, the
value is negative. The number of pulses displayed is in the encoder pulse unit.
Cumulative command pulses
The position command input pulses are counted and displayed.
Under the reverse command, the value is negative.
Command pulse frequency
The frequency of the position command input pulses is displayed.
Command pulse frequency
(speed unit)
The command pulse frequency is converted and displayed in the servo motor speed unit.
Regenerative load ratio
The ratio of regenerative power to permissible regenerative power is displayed as a
percentage.
Effective load ratio
The continuous effective load current is displayed. The effective load ratio in relation to
the rated current (= 100 %) is displayed.
Peak load ratio
The rated torque is displayed as 100 %. The maximum value of the torque generated in
the past 15 seconds is displayed.
Torque/instantaneous torque
The instantaneous torque is displayed.
The rated torque is displayed as 100 %. The value of the generated torque is displayed in
real time.
Position within one-revolution
The position within one revolution is displayed in the encoder pulse unit.
ABS counter
The travel distance from the home position is displayed as multi-revolution counter value
of the absolution position encoder in the absolution position detection system.
Load to motor inertia ratio
The estimated ratio of the load inertia moment to the servo motor inertia moment is
displayed.
