Siemens SIMODRIVE 611 universal Function Manual page 662

7 Fault Handling/Diagnostics
7.3 List of faults and warnings
515
Cause
Remedy
Acknowledgement
Stop response
591
Cause
Remedy
Acknowledgement
Stop response
7-662
Power module temperature, exceeded
The power section temperature is sensed using a temperature sensor
on the heatsink. The drive is immediately shut down 20 seconds after
the heatsink temperature alarm in order to prevent the power section
being thermally destroyed (regenerative stop).
Improve the drive module cooling, e.g. using:
– Higher airflow in the switching cabinet, possibly cool the ambient air
of the drive modules
– Avoid many acceleration and braking operations which follow quickly
one after the other
– Check that the power section for the axis/spindle is adequate,
otherwise use a higher-rating module
– Ambient temperature too high (refer to the Configuration Manual)
– Permissible installation altitude exceeded (refer to the Configuration
Manual)
– Pulse frequency too high (refer to the Configuration Manual)
– Check fan, if required, replace
– Maintain the minimum clearance above and below the power section
(refer to the Configuration Manual)
POWER ON
parameterizable
Pos.contr.clock cycle not equal to DP clock cycle/mas-
ter applic. clock cycle
For a 2-axis module, one axis is in the n-set mode and one axis in the
positioning mode. For the axis in the n-set mode, a position controller
clock cycle (of the master) is entered via the clock-cycle synchronous
Profibus or the bus interface. This position controller clock cycle differs
from the parameterized position controller clock cycle (P1009) of the
axis in the positioning mode. The position controller clock cycle of the
master is obtained, in the n-set mode, from the DP clock cycle (Tdp) or
the clock cycle of the bus interface multiplied by the time grid Tmapc.
For a clock cycle synchronous PROFIBUS (isochronous) or the bus
interface, the clock cycles configured for the bus (parameterization) are
aligned with the position controller clock cycle P1009 from the position-
ing axis and n-set axis.
POWER ON
STOP II
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
E Siemens AG 2005 All Rights Reserved
04.05 01.99