Sanyo Denki Sanmotion R 3E S, Instruction Manual, Page: 334 / 514

8. Maintenance
8-1
8.1 Trouble shooting
When troubles occurred without any alarm displayed, check and take corrective actions for them
by referring to the description below. When alarm occurs, take corrective measures referring to
“8.3 Trouble shooting when alarm is activated “.
■
“≡“
does not blink in 7-segment LED even if main power is ON.
■
The motor does not rotate although 7-segment LED is drawing a character
“
8
“
.
* When performing the work for correction and investigation processing about wiring, be sure to
intercept power supply.
Investigation Assumed causes and corrective actions
Check the voltage at the power input
terminal.
■
If voltage is low, check the power supply.
■
Check that wires and screws are fastened
properly.
Red “CHARGE“ LED goes out.
■
Internal power circuit of servo amplifier is
defective, so replace the servo amplifier.
Over-travel status.
Emergency Stop status.
■
Stop the input of Over-travel or the input of
Emergency Stop.
■
Check of “ Functions enabling condition
settings
“
.
Safe Torque Off working status
■
Turn on /HWGOFF1 and /HWGOFF2 inputs.
Investigation Assumed causes and corrective actions
Check a inputting command by using
digital operator monitor.
Page16: Velocity command monitor
Page18: Torque command monitor
Page30: Position command pulse
frequency monitor
■
Inputting a command if the monitor value is
zero.
Check the servo motor is locked or not.
■
Check that the power line of a servo motor is
connected.
Check if torque limit is input.
■
When torque restriction is inputted, a servo
motor cannot output the torque beyond the
load torque.
■
Check of
“
Functions enabling condition
settings
“
Check the deviation clear input status.
■
Stop the input of deviation clear if the signal
is in.
■
Check of “ Functions enabling condition
settings
“
Check the encoder clear input status.
■
Stop the input of encoder clear if the signal
is in.
■
Check of “ Functions enabling condition
settings
“