Siemens Sinumerik 840C Diagnostics Manual page 72

1 Alarms
1.5.1 Alarm description
1000* Terminal assigned more than once
S
Scan
When inputting machine data for axis assignment
Effect
No machining of the axes for which the connection number concerned has been assigned more than once
S
Servo disable for the axis concerned
S
Mode Group Ready removed
S
Interlocking of NC START
S
Interlocking of NC RDY relay
S
Explanation
A connection number of a measuring circuit module has been specified more than once under MD200x or
MD384x.
Example: MD3840 = 01060000, MD3845 = 01060000. Connection number 6 of the 1st measuring circuit
module has thus been assigned more than once.
S
Remedy
Check and correct MD200x or MD384x
Note
Applies up to SW 2
1000* Terminal assigned more than once
S
Scan
Cyclic for digital drives if double assignment of setpoint output via MD is permissible.
S
Effect
As before
S
Explanation
Two NC axes assigned the same digital setpoint output are being controlled at the same time. This simulta-
neous output of setpoints at the same drive is not allowed.
The interface signal "Parking axis" is not allowed for the axis that is not being controlled.
S
Remedy
One of the NC axes must be disconnected from the control loop (servo enable, follow-up mode).
Note
Applies as from SW 3
1004* Permissible feed/limit frequency exceeded
Scan
Cyclic
S
Effect
Interlocking of NC START
S
Interlocking of Mode Group Ready
S
Setpoint 0
S
Servo enable is cancelled after the time in NC MD "Cutout delay"
S
Follow-up mode
Explanation
The maximum value set in the NC MD "Encoder frequency" has been exceeded.
Is only activated for C axes to spindles (assignment via NC MD 461*).
If the service number 309 is indicated here, the reason for the alarm is a format overflow, which can be avoided by
reduction of the resolution.
Remedy
Check feedrate and NC MD "Encoder limit frequency" MD 308*.
1008* Speed controller limitation
Scan
POWER ON and warm restart
S
Effect
Interlocking of NC START
S
Interlocking of Mode Group Ready
Alarm causes machining stop
S
Explanation
Speed alarm limit has been reached
S
Remedy
Check current controller
S
Set speed control loop to a slower rate
S
Increase parameters
S
Check mechanical parts
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Siemens AG 2001 All rights reserved 6FC5198–jAB40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
04/96
09/01
POWER ON
as from SW 2: Reset key
Reset key
Reset key
Reset key