Siemens SIMOTICS S-1FK2 Series Configuration Manual page 66

Technical data and characteristics
6.1 Explanations
S1 characteristic
The S1 characteristic
continuous operation according to the specified heat class of the motor.
NOTICE
Motor damage due to overheating
Continuous operation in the area above the S1 characteristic results in motor overheating
and subsequent damage.
• Operate the motor within the values of the S1 characteristic.
On average, the supplied torque must be below the S1 characteristic. You can find additional
information in section "Configuration (Page 49)".
M
max
The M
M
max Inv
The M
maximum converter current. The M
consideration.
n
max Inv
The mechanical variables of the motor and the properties of the converter limit the speed
range of the motor. The n
the system with SINAMICS S120.
NOTICE
Damage to the converter due to excessively high speeds
A motor speed higher than n
permissible converter voltage in the winding. This induced voltage can destroy the
converter.
• Run the motor at speeds below n
Recommended Motor Module
A Motor Module is recommended in section "Motor overview/Motor Module
assignment/power cables (Page 66)" for each motor in accordance with its stall current. The
maximum torque that can be achieved with this in the short term is shown in the
characteristic M
● When configuring intermittent or overload operation, check whether a larger Motor
Module is required to provide the necessary peak current.
64
①
shows the limits of the permissible temperature range for
characteristic
②
characteristic defines the operating range for transient overloads.
max
characteristic
③
characteristic
max Inv
line
max Inv
.
max Inv
limits the possible overload range in combination with a specific
characteristic takes field weakening into
max Inv
④
line limits the maximum permitted speed of the motor in
can cause voltage that exceeds the maximum
max Inv
.
max Inv
Configuration Manual, 06/2019, A5E46927724B AB
1FK2 synchronous motors for SINAMICS S120