7
7.3
List of faults and warnings
7-674
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
614
Delayed shutdown for motor overtemperature
(P1602/P1603)
Cause
The motor temperature (sensed via the temperature sensor KTY 84
and fed to the module via the motor encoder cable) has exceeded the
temperature in P1602 for a time longer than in P1603.
Remedy
– Avoid many acceleration and braking operations which follow one
another quickly.
– Motor overload?
– Check whether the motor output is sufficient for the drive, otherwise
use a more powerful motor, possibly together with a higher-rating
power section.
– Check the motor data. The current could be too high due to incorrect
motor data.
– Check the temperature sensor.
– Check the motor fan.
– Check the motor encoder cable.
– Motor encoder defective?
– Check and possibly reduce P1230 or P1235.
The motor temperature monitoring can be disabled
with P1601 bit 14 = 1.
For linear motors:
– Check the parameters for the motor temperature monitoring
P1602 (alarm threshold, motor overtemperature) = 120 degrees C
P1603 (timer, motor temperature alarm) = 240 s
P1607 (shutdown limit, motor temperature) = 155 degrees C
P1608 (fixed temperature) = 0 degrees C
P1608 = 0 temperature sensing active
P1608 > 0 fixed temperature active
– If the temperature monitoring is exclusively realized using an external
PLC, a fixed temperature must be entered into P1608
(e. g. 80 degrees C). This disables the drive temperature monitoring.
– Check the power connector at the motor
– Check the connection of the temperature sensor coupling cable at the
end of the power cable; approximately 580 ohm must be measured at
20 degrees C
– With the measuring system connectors withdrawn (X411), are
approximately 580 ohm measured between PIN 13 and PIN 25 of the
encoder cable at 20 degrees C?
– Check that the measuring system connector is correctly located at
the drive (X411)
– Only KTY may be connected for drives connected in parallel
– If the temperature switch and temperature sensor are connected in
series, the temperature sensor (NC contact) may have responded, or
the temperature switch is defective
Acknowledgement RESET FAULT MEMORY
Stop response
parameterizable
7 Fault Handling/Diagnostics
01.99
04.05