1Error list
Error no. H0820 * H082n * (n indicates the axis number (1 to 8).)
1-14
H0820 *
H082n *
(n indicates the
axis number (1
to 8).)
Error message Motor ground fault
Cause A motor ground fault was detected. A connection or conductance error may have occurred in the motor
cable.
Measures Turn the power OFF and ON once. Check connection and continuity of motor cable.
H083n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier overvoltage
Cause The main circuit bus voltage exceeded the tolerable value.
Measures Check the primary power supply voltage. Turn the power OFF and ON once.
H0840 * Error message Instantaneous power failure (SRV)
Cause A power shutdown status of 50 msec or longer has occurred.
Measures Check the power voltage. Turn the power OFF and ON once.
H0850 * Error message Power supply voltage incorrect
Cause The input power (L1, L2, L3) has an open phase, the voltage is not within the specifications, or the 100V/
200V specifications changeover setting is incorrect.
Measures Check the power connection, power state or the setting.
H0860 Error message Power supply overvoltage
Cause The main circuit bus voltage exceeded the tolerable value.
Measures Check the power supply connection and power supply state.
H0870 * Error message Power module overheat (Fan Stop)
Cause A cooling fan stopped, and overheat occurred
Measures Check the rotation of fan, and the connector connected to a fan
H0880 *
H088n *
(n indicates the
axis number (1
to 8).)
Error message Power module overheat
Cause Overheating of the power module regenerative resistor was detected.
Measures Turn the controller power OFF, wait a while, and then turn ON again. If it comes back, contact your service
provider.
H089n
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier motor overheat
Cause The position detector's thermal protector activated.
Measures Turn the controller power OFF, wait a while, and then turn ON again. Decrease the acceleration/
deceleration time of the operation speed, for instance.
Refer to "Detailed explanation of command words"/"Accel (Accelerate)," "Ovrd (Override)" and "Spd
(Speed)," or "Detailed explanation of Robot Status Variable"/"M_SetAdl," "M_LdfAct" and "Functions set
with parameters"/"JADL (Optimum acceleration/deceleration adjustment rate)" of the Separate Volume,
"INSTRUCTION MANUAL/Detailed Explanation of Functions and Operations."
H090n *
(n indicates the
axis number (1
to 8).)
Error message Absolute position overspeed
Cause It moved 45 mm/sec or faster with the absolute position linear scale during initialization.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H091n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier overspeed
Cause A speed exceeding the motor's tolerable speed was detected.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H0920 *
H092n *
(n indicates the
axis number (1
to 8).)
Error message Power module overcurrent
Cause A servo amplifier or power supply overcurrent was detected. An error was detected in the servo amplifier's
gate circuit. A connection or conductance error may have occurred in the motor cable.
Measures Confirms the connection of the machine cable and the locomotion-axis cable. If it comes back, contact
your service provider.
Error No. Error cause and measures
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