Siemens Simovert Masterdrives Compendium page 447

09.2008
8.2.10 Diagnosis and troubleshooting
NOTE
8.2.10.1 Evaluating the possibilities of hardware diagnosis
LED displays
NOTE
Siemens AG 6SE7087-6QX70 (Version AK)
SIMOVERT MASTERDRIVES
With regard to basic parameterization, please note the differences in
diagnosis and troubleshooting to the types of unit with the older function
classes FC (CU1), VC (CU2) and SC (CU3). These differences are
described below.
In order to make these differences clear, the parameter numbers and
other deviations are either printed in dark gray or have a dark-gray
background.
There are three LED displays on the front of the CBP:
♦ red:
CBP operating
♦ yellow:
Data exchange with the basic unit
♦ green:
Transfer of useful data via the PROFIBUS
Diagnostic LEDs give the user rapid information on the status of the CBP
at any particular instant.
More detailed diagnostic information can be read out directly from the
diagnostics memory of the CBP by means of a diagnostic parameter.
During normal operation, all three LEDs light up synchronously and for
the same length of time (flashing)!
The stationary status of an LED (on or off) indicates an unusual
operating status (parameterization phase or fault)!
LED Status
Red Flashing
Yellow Flashing
Green Flashing
Table 8.2-20 LED display of the CBP
LED Status
Red Flashing
Yellow Flashing
Green Off
Table 8.2-21 Online operation without useful data
Compendium Motion Control
Diagnostic information
CBP operating; voltage supply on
Fault-free data exchange with the basic unit
Fault-free cyclical useful data traffic with a master,
class 1, via PROFIBUS
Diagnostic information
No cyclical useful data traffic with a master, class 1,
via PROFIBUS –DP
due to e.g. EMC interference, bus connector pulled
out, polarity reversal of connections, node number
not supplied with useful data by the master.
Acyclical useful data traffic with a master, class 2
(DriveES, DriveMonitor, SIMATIC OP) does not
affect the green LED.
Communication / PROFIBUS
8.2-117