Sigma II User’s Manual
Chapter 9: Inspection, Maintenance, and Troubleshooting
9 - 16
A.73
A.73: Dynamic Brake Overload
Display and Outputs
Note:
OFF:
Output transistor is OFF (alarm state).
ON:
Output transistor is ON.
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Output
ALM Output
ALO1
ALO2
ALO3
ON
ON
ON
OFF
Cause of the Problem
Solution
A
The product of the square of rotational motor
speed, the combined inertia of the motor,
and load (rotation energy) exceeds the
capacity of the dynamic brake resistor built
into servo amplifier.
• Reduce the rotational speed.
• Decrease the load inertia.
• Minimize use of the dynamic brake.
B
Defective circuit board (1PWB).
Replace servo amplifier.
When the Servo OFF (/S-ON)
signal is turned ON.
At power ON.
A
B
Summary of Contents for SGMAH
Page 1: ...Sigma II Series Servo System User s Manual...
Page 2: ......
Page 4: ...ii This page intentionally left blank...
Page 6: ...iv This page intentionally left blank...
Page 10: ...Sigma II User s Manual Table of Contents Preface viii Notes...
Page 17: ...Sigma II User s Manual Table of Contents Preface xv C 6 Torque Control Mode C 9...
Page 18: ...Sigma II User s Manual Table of Contents Preface xvi...
Page 38: ...Sigma II User s Manual Chapter 2 Installation 2 10 NOTES...
Page 472: ...Sigma II User s Manual Appendix C Examples of Standard Connections C 10 Notes...
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