Siemens TV Converter Box 611 Manual De Usuario
Motor components of the built-in motor and options
3.2 Thermal motor protection
3.2.2
Evaluation of the temperature sensors for motor protection
Temp–S
Temp–S is used to reliably protect the motor against overheating. If Temp–S responds, then
the drive must be quickly shut down in order to prevent the drive converter from continuing to
supply current to the stator (= additional thermal load). The current load level setpoint(s),
requested from the closed-loop control, causes this thermal load and this can destroy the
stator.
There are two possibilities of evaluating Temp–S:
There are two possibilities of evaluating Temp–S:
Method 1
The SME9x module is evaluated via the drive converter. In this case, only PTC 130 °C is
evaluated. An internal logic circuit of the SME9x module causes the drive converter to switch
the drive into a no-current condition if the overtemperature or fault continues (max. 2
seconds).
Note
Please observe the following when parameterizing the machine data:
Please observe the following when parameterizing the machine data:
MD1607 (shutdown limit, motor temperature) must be 155 °; i.e. it is not permissible that
this parameter is changed.
MD1602 (pre-alarm threshold) and MD1603 (timer, motor temperature alarm) can be
adapted depending on the specific application. However, MD1602 (pre-alarm threshold)
should not be greater than the shutdown temperature of the PTC temperature sensor.
Method 2
Evaluation via the PLC and connection via the thermistor motor protection device:
● Only one PTC is evaluated e.g. if the drive system only has one evaluation channel.
● Only one PTC is evaluated e.g. if the drive system only has one evaluation channel.
In this case, PTC 130 °C must be evaluated. The drive control reaction time may not
exceed 1 second, from the response of the PTC element (Temp-S) to the disconnection
of the power supply (pulse inhibit in the drive control).
● Both PTCs are evaluated:
In this particular case, the PTC 130 °C is used to output an alarm message. If the
temperature continues to increase, then the PTC 150 °C responds when its response
temperature is reached; after this, the stator must be immediately brought into a no-
current condition.
For the parameterization, please contact your local Siemens office.
1FW6 Built-in torque motors
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Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7