![HarmonicDrive H A - 800A Manual Download Page 257](http://html1.mh-extra.com/html/harmonicdrive/h-a-800a/h-a-800a_manual_3948978257.webp)
11-1 Alarms and remedial actions
11-4
2
3
4
5
6
7
8
9
10
11
Appe
Troubl
esh
oot
ing
Alarm
code
Alarm
name
Description
Condition at
occurrence
Action
AL30
IPM error
(overcurr
ent)
The servo
current control
element
detected an
overcurrent.
The alarm
occurs when the
control circuit
power is turned
ON:
Control circuit error
→ Contact our sales office.
The alarm
occurs when
[CN2-2:
Servo-ON] is
input (ON):
Control circuit error
→ Contact our sales office.
The alarm
occurs when
[CN2-2:
Servo-ON] is
input (ON), but a
normal condition
is restored once
the motor cable
(U, V, W) is
disconnected:
Short-circuit the motor cable
→ Inspect/reconnect or replace/repair the
connection points of the motor cable.
Short-circuit the motor coil
→ Contact our sales office.
(Replace the actuator.)
The alarm
occurs during
acceleration or
deceleration:
The load inertia moment (inertia) is excessive
or acceleration/deceleration time is too short.
→ Lower the load inertia moment.
→ Increase the time set in [AJ12: Acceleration
time constant] or [AJ13: Deceleration time
constant] in the tune mode.
The gain is too high or too low.
→ Adjust [AJ00: Position loop gain], [AJ01:
Speed loop gain] and [AJ02: Speed loop
integral compensation] in the tune mode to
match the load condition.
Faulty wiring of regenerative resistor
(HA-800A-24)
→ Resistance of an external regenerative
resistor is low. Or it is short-circuited.
It is connected in parallel with a built-in
regenerative resistor.
The alarm
occurs during
operation
(operation can
be resumed after
4 to 5 minutes):
Overload
→ Review the effective load rate of the actuator
and lower the load rate.
The ambient temperature of the driver is 50
℃
or above.
→ Review the installation location and cooling
system of the driver.
The alarm
occurs when
cutting the main
circuit power
OFF:
Faulty wiring of regenerative resistor
(HA-800A-24)
→ Resistance of an external regenerative
resistor is low. Or it is short-circuited. It is
connected in parallel with a built-in
regenerative resistor.
Summary of Contents for H A - 800A
Page 60: ...2 6 Wiring the host device 2 21 4 2 2 1 9 8 7 6 9 8 Installation wiring...
Page 86: ...3 6 Normal operation 3 25 4 3 3 1 9 8 7 6 9 8 Startup...
Page 152: ...5 8 Connection example in control mode 5 35 1 2 3 4 5 6 7 8 9 10 11 Appe I O signals...
Page 166: ...6 1 Operating display panel 6 13 11 10 9 4 7 6 5 4 3 2 1 Panel display and operation...
Page 206: ...8 2 Function extension parameter 8 17 1 2 3 4 5 6 7 8 9 10 11 Appe System parameter mode...
Page 222: ...9 2 Details of test mode 9 15 1 2 3 4 5 6 7 8 9 Test mode...
Page 270: ...11 2 Warnings and remedial actions 11 17 1 2 3 4 5 6 7 8 9 10 11 Appe Troubleshooting...
Page 271: ...1 16 Chapter 12 Option Options you can purchase as necessary are explained 12 1 Option 12 1...
Page 276: ...12 1 Option 12 5 1 2 3 4 5 6 7 8 12 Option...