Siemens SIMOTICS S-1FK7, Руководство по эксплуатации

Страница: 37 / 134

Description of the motors
2.6 Mounting and options
1FK7 G2 synchronous motors
Operating Instructions, 05/2021, A5E50907562B AA
35
If this message is ignored, the converter shuts down with the appropriate fault message after
a preset time period or when the motor limiting temperature or the shutdown temperature is
exceeded.
The integrated temperature sensor protects the synchronous motors only to a certain extent
against overloads:
1FK703 to 1FK704: up to 2
∙ I
0 (60 K)
and speed ≠ 0
1FK706 to 1FK710: up to 4 ∙ I
0 (60 K)
and speed ≠ 0
NOTICE
Destruction of the motor for a thermal critical load
For load applications that are critical from a thermal perspective, e.g. overload when the
motor is stationary or an overload of M
max
longer than 4 s, adequate protection is no longer
available.
•
Activate the "Thermal motor model i
2
t monitoring" function in the converter.
The temperature sensor is part of a SELV circuit, which can be destroyed if high voltage is
applied. The temperature sensor is designed so that the DIN/EN requirement for "protective
separation" is fulfilled.
2.6.4 Encoder
Encoder systems with DRIVE-CLiQ interface
Motors with a DRIVE-CLiQ encoder interface should be used with the SINAMICS S110/S120
converter system. Signal transmission to the converter is performed digitally. They have an
electronic rating plate that simplifies commissioning and diagnostics. The motor and encoder
system are automatically identified and all motor parameters are automatically set, see
SINAMICS Equipment Manual.
NOTICE
Destruction of the encoder when incorrectly handling ESD parts and components
Encoders are ESD components.
•
Comply with the regulations for handling electrostatic sensitive devices. See Chapter:
Equipment damage due to electric fields or electrostatic discharge (Page 16).