Siemens SINAMICS V20 Inverter, Operating Instructions Manual

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Commissioning via the built-in BOP
5.6 Function commissioning
SINAMICS V20 Converter
116
Operating Instructions, 10/2019, A5E34559884-012
5.6.3.5 Setting the UL508C/UL61800-5-1-compliant motor overtemperature protection
Functionality
The function protects the motor from overtemperature. The function defines the reaction of
the converter when motor temperature reaches warning threshold. The converter can
remember the current motor temperature on power-down and reacts on the next power-up
based on the setting in P0610. Setting any value in P0610 other than 0 or 4 will cause the
converter to trip (F11) if the motor temperature is 10% above the warning threshold P0604.
Note
In order to comply with UL508C/UL61800-5-1, parameter P0610 must not be changed from
its factory setting of 6.
Setting parameters
Parameter Function Setting
P0610[0...2] Motor I
2
t temperature
reaction
This parameter defines reaction when motor temperature reaches warning threshold.
Settings 0 to 2 do not recall the motors temperature (stored at power-down) on pow-
er-up:
= 0: Warning only
= 1: Warning with Imax control (motor current reduced) and trip (F11)
= 2: Warning and trip (F11)
Settings 4 to 6 recall the motors temperature (stored at power-down) on power-up:
= 4: Warning only
= 5: Warning with Imax control (motor current reduced) and trip (F11)
= 6: Warning and trip (F11)
5.6.3.6 Motor protection with PTC sensor
Functionality
The converter uses a PTC sensor to protect the motor against overtemperature. The
converter interprets a resistance > approximately 1500 Ohm as being an overtemperature
and responds according to the setting for P0610.
EMC-compliant installation
Note
To enable the trip function, set one of the digital inputs using DI1 (P0701), DI2 (P0702), DI3
(P0703), or DI4 (P0704) to 29 (external trip).