Download  Print this page

Complying With Speed-torque Curve; Phase Synchronization During Supply System Switching; Space Requirements; Voltage And Frequency Fluctuations During Line Operation - Siemens 1LA8 Operating & Installation Instructions Manual

Low-voltage motor simotics tn series n-compact.
Hide thumbs


Preparations for use

4.9 Complying with speed-torque curve

Complying with speed-torque curve
Exceeding the temperature class
If the speed-torque curve is not followed, the temperature class may be exceeded. An
explosion can occur. This can result in death, serious injury or material damage.
● Comply with the speed-torque curve.
● Observe the data on the extra rating plate on the motor.

Phase synchronization during supply system switching

Supply system switching
Damage to the machine may be caused when switching to another supply system with
different phasing.
● The phasing must be synchronized during switching. Use appropriate means to

Space requirements

Observe the minimum dimension for the air inlet at the machine site:
Table 4-1

Voltage and frequency fluctuations during line operation

If nothing else is stamped on the nameplate, then the permissible voltage fluctuation is ±5 %
and the permissible frequency fluctuation is ±2 %, corresponding to range A in
IEC / EN 60034‑1. Permissible fluctuations that go beyond this are specified on the nameplate,
e.g. voltage fluctuation of ±10 % corresponding to range B in IEC / EN 60034‑1.
The following applies: Under practical operating conditions a machine may sometimes have
to be operated outside the limits of Range A. Exceptions of this sort should be limited with
regard to the values that arise, how often and for how long they occur. Where possible and
synchronize the phasing.
Minimum dimensions for air intake
130 mm
Shaft height
140 mm
150 mm
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017
160 mm


   Related Manuals for Siemens 1LA8

Comments to this Manuals

Symbols: 0
Latest comments: