Application
Alarm Code
SVALM Output
Error Detection Function
Description
OE
OFF
User constant error
Absolute data error
An absolute or parameter (user constant) error.
l O
OFF
Overcurrent
Ground detection
• Overcurrent flowed through the main circuit.
• Overcurrent flows to the main circuits and Servomotor
power lines are grounded.
30
OFF
Regenerative error
A regenerative resistor circuit malfunctioned.
4
❑
OFF
Overvoltage
Undervoltage detection
DC voltage is abnormal in the main circuit.
51
OFF
Overspeed detection
Motor speed exceeded the maximum speed.
7E1
OFF
Overload
Heat sink overheating
detection
• The load torque for the motor and SERVOPACK was ex-
ceeded.
• SERVOPACK heat sink overheated.
B
❑
OFF
Hardware error
The hardware circuit is abnormal.
C E
OFF
Phase error detection
Overrun detection
Broken PG signal line
• A n overrun was caused by the motor or the PG wiring in-
correct.
• Noise in encoder wiring
8E1
OFF
Encoder alarm
Absolute encoder alarm.
9
❑
ON
Warning
A user constant or command error.
DO
OFF
Position error overflow
The number of pulses accumuated in the error counter
exceeded the preset value.
ED
OFF
Communication error
A synchronization error or communications error.
FE
OFF
Power supply line not
connected
Instantaneous power loss
error
• One phase of the main circuit power supply not connected.
• Power loss occurred during operation.
99
ON
No alarm
—
5.4.2 Error Detection Function
5.4 Protection Functions
The SERVOPACK is equipped with various functions to protect the driver and motor from damage.
5.4.1 Dynamic Brake Function
The SERVOPACK is equipped with a dynamic brake for emergency stops. The brake is operated
for any of the following conditions.
• W h e n an alarm occurs (error 'detection)
• W h e n the servo receives SV_OFF command
• W h e n power is turned OFF
5.4.2 Error Detection Function
Table. 5.2
shows the error detection function in the SERVOPACK. Alarm details can be checked
by M E C H AT R O L I N K communication and S VA L M output.
Table 5.2 E r r o r Detection Function
ON : O u t p u t transistor is ON
OFF : Output transistor is OFF
5 -8