Siemens SIMOVERT MASTERDRIVES Betriebsanleitung Seite 297

08.2009
Number / Alarm
A028
Diagnostics counter
A029
I2t motor
A032
PRBS Overflow
A033
Overspeed
A034
Setpoint/actual value
deviation
A036
Brake checkback
"Brake still closed"
A037
Brake checkback
"Brake still open"
A042
Motor stall/block
A049
No slave
not Compact PLUS
A050
Slave incorrect
not Compact PLUS
A051
Peer baud rate
not Compact PLUS
A052
Peer PcD L
not Compact PLUS
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SIMOVERT MASTERDRIVES
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Cause
The position of an encoder (motor encoder or
external encoder) was incorrect for one or
more samplings. This can result from EMC
faults or a loose contact.
When faults start to occur at a certain rate,
fault message F51 is triggered by the
corresponding fault variable.
The parameterized limit value for the I2t
monitoring of the motor has been exceeded.
An overflow has occurred during recording
with noise generator PRBS
The positive or negative maximum speed has
been exceeded.
Bit 8 in r552 status word 1 of the setpoint
channel. The difference between frequency
setpoint/actual value is greater than the
parameterized value and the control
monitoring time has elapsed.
The brake checkback indicates the "Brake still
closed" state.
The brake checkback indicates the "Brake still
open" state.
Motor is stalled or blocked.
The alarm cannot be influenced by P805
"PullOut/BlckTime", but by P794 "Deviation
Time"
At serial I/O (SCB1 with SCI1/2), no slave is
connected or fiber-optic cable is interrupted or
slaves are without voltage.
At ser. I/O the slaves required according to a
parameterized configuration are not present
(slave number or slave type): Analog inputs or
outputs or digital inputs or outputs have been
parameterized which are not physically
present.
In a peer-to-peer connection a baud rate has
been selected which is too high or too
different.
In a peer-to-peer connection, a PcD length has
been set which is too high (>5).
Siemens Controls
6SE7087-6JD50
Operating Instructions
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Faults and Alarms
Counter-measure
For test purposes, fault message F51 can be
triggered with the setting P847=2 in order to
obtain more information about fault variable
r949.
All indices can also be monitored in r849 in
order to find out which diagnostics counter
counts the fault. If alarm A28 is hidden for this
fault, then the corresponding index in P848
can be set to 1.
Motor load cycle is exceeded!
Check the parameters:
P382 Motor Cooling
P383 Mot Tmp T1
P384 Mot Load Limits
Repeat recording with lower amplitude
- Increase relevant maximum speed
- Reduce regenerative load (see FD 480)
Check
- whether an excessive torque requirement is
present
- whether the motor has been dimensioned too
small.
Increase values P792 Perm Deviation Frq/
set/actual DevSpeed and P794 Deviation Time
Check brake checkback (see FD 470)
Check brake checkback (see FD 470)
Check
- whether the drive is blocked
- Whether the drive has stalled
P690 SSCI AnaIn Conf
- Check slave.
- Check cable.
Check parameter P693 (analog outputs), P698
(digital outputs). Check connectors
K4101...K4103, K4201...K4203 (analog inputs)
and binectors B4100...B4115, B4120...B4135,
B4200...B4215, B4220...B4235 (digital inputs)
for connecting.
Adjust the baud rate in conjunction with the
SCB boards P701 SCom/SCB Baud Rate
Reduce number of words P703 SCom/SCB
PcD #
12-15