7
7.3
List of faults and warnings
7-697
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
801
Plus hardware limit switch
Cause
A 1/0 edge was identified at the ”Plus hardware limit switch” input signal.
Remedy
– In the pos mode: Return the drive to the traversing range using jog key
1 or 2.
– In the n-set mode: Enter a setpoint that opposes the approach direction.
Acknowledgement not required
Stop response
STOP VII
802
Drive rotates in response to angular encoder output
parameters
Cause
The drive was not stationary as the zero pulse offset was programmed
on the angular encoder interface. Low speeds are not critical, but the
inaccuracy of the zero pulse position increases in proportion to speed.
Remedy
Ensure that the drive is at a standstill, or take into account a higher in-
accuracy of the zero pulse.
Acknowledgement not required
Stop response
STOP VII
804
Controller enable or on/off 1(edge) or on/off 2/3 miss-
ing
Cause
When starting a traversing block, the controller enable has not been
set, or the controller enable is missing during a traversing program
when re-starting the axis from standstill.
Controller enable missing, i.e. one of the following signals missing:
– PROFIBUS control signals (STW1.0: ON/OFF 1 (signal edge),
STW1.1: OC/OFF2, STW1.2: OC/OFF 3, STW1.3: Enable inver-
ter/pulse inhibit) and the appropriate signals of the bus interface
– PC enable (SimoCom U)
– Terminal 64
– Terminal 65.x
Remedy
Set the missing signal, and re-start the traversing block or enter a sig-
nal edge via PROFIBUS.
Acknowledgement not required
Stop response
STOP VII
7 Fault Handling/Diagnostics
01.99
04.05