Panasonic VR2 Series - 17 Errors and Alarms; Alarm Codes

17-1
17. Errors and Alarms
17-1. Alarm codes
* If the remedy doesn’t reset the error or alarm condition, consult our service office.
Alarm
code
Message Probable Cause Remedy
A4000
Over temperature Abnormal temperature rise is
detected. Continued operation may
damage interior equipment.
Turn OFF the power and allow the
machine to cool, and then newly
turn on the power.
Contact welded: Spare
Emergency stop
Contact welded: TP
Emergency stop
Contact welded: Door stop
Contact welded: HAND
Emergency stop
Contact welded: Over run
Contact welded: External
Emergency stop
Contact welded: Software
Emergency stop
Contact welded: Safety relay
stop
Contact welded: Harmony
Emergency stop 1
Contact welded: Harmony
Emergency stop 2
Contact welded: TP Dead
Man's switch Feedback
A4010
Contact welded: Mode switch
Circuit is fused. Safety card may be
damaged.
Check the circuit connected to the
terminal indicated in the alarm
message and replace safety card
as needed.
A4020
Overrun release input is
detected
Overrun release input is not
consistent.
Turn off the power and then check
the overrun release switch.
A4030
Safety-circuit 24V error Error in supply voltage at safety circuit
is detected.
Turn off the power and then check
the fuse of the safety card.
A4040
Sequencer PWR24V error Error in supply voltage at the
sequence circuit.

Turn off the power. Then check
fuse on the sequencer board and
power control board. Check also
connection of the supply voltage.

A4050 Contact welded: Independent
E-axis servo Off input (**)
＊＊is Axis name.
Fuse at servo OFF input of the
Independent E-axis servo is detected.
Check the wiring of servo OFF
input of the independent E-axis
servo.
A5000
System alarm An error occurred in the system. Turn off the power and then newly
turn it on.
A5001
Robot Comm. error An error occurred in robots
communication.
The other robot was brought to an
alarm stop.
Noise in the robots communication.
Check the other robot for the
cause of the alarm.
Check the communication cable.
A6000
Servo power off Error in controller, or inclusion of
noise.

A6010
Servo comm. error Error in controller or servo circuit
board, or inclusion of noise.
A6020
Sequencer communication
error

Error in sequencer circuit.
Turn off the power and then newly
turn it on.
