Siemens SINUMERIK 808D ADVANCED Commissioning Manual page 500

Alarm Background
code
A07 This alarm may occur
when the DC link is
connected
This alarm may occur
when the motor is run-
ning
A08
A09
A14
A21 This alarm may occur
when the 24 V DC sup-
ply is connected
This alarm may occur
when the DC link is
connected
This alarm may occur
when the motor is run-
ning
A22
A23
A24 This alarm may occur
when it's detected that
the difference between
the position setpoint
and the position actual
500
Possible Cause
IGBT module is broken
•
There is a short-circuit between U, V or W
•
and PE
UVW signals of the encoder are bad
•
Bad cable
•
Bad cable shielding
•
Bad wiring of the shielded ground cable
•
There is a failure in the interface circuit of
•
the encoder
Connection failure of encoder ABZ
•
Bad cable
•
Bad cable shielding
•
Bad wiring of the shielded grounded cable
•
There is a failure in the interface circuit of
•
the encoder
There is failure at the internal software
A short-circuit occurs to the encoder
There is a failure at the circuit board
The mains supply voltage is too high
•
The waveform of mains supply voltage is
•
abnormal
Disconnection of the internal brake resistor
•
The internal brake resistor is broken
•
Brake loop has no enough space
The motor is mechanically blocked
Overload
Circuit board fails
•
Fuse of the power is burnt out
•
Rectifier is broken
•
Low supply voltage
•
Insufficient supply power capacity
•
Transient power failure
•
There is pulse inputs at the setpoint interface
X5 when the drive is in "S-2", "S-3", or "S-4"
state
Remedy
Replace the drive with a new
•
one
Check the wiring
•
Replace the drive with a new
•
one
Check the interface circuit of
•
the encoder
Check the wiring of encoder
•
cable
Check the interface circuit of
•
the encoder
Reset by power-on
Check the wiring of encoder
Replace the drive with a new one
Check the power supply
Replace the drive with a new one
Lower the start-stop frequency
•
Minish the limit value of current
•
Minish load inertia
•
Use another drive and motor
•
with higher power
Check the mechanical load
Lighten the load
•
Use another drive and motor
•
with bigger power
Replace the drive with a new one
Check the power supply
When P38 = 1, check whether
more than 1000 pulses are re-
ceived at the setpoint interface X5
when the drive is in "S-2", "S-3", or
"S-4" state
Commissioning Manual
01/2017