Operation With Increased Rated Power - Lenze L-force HighLine C 8400 Series Reference Manual

8400 HighLine C | Reference manual
Motor control (MCTRL)
Parameterisable additional functions
5.10.2

Operation with increased rated power

Under the operating conditions described here and under continuous operation, the
controller can be operated with a higher power motor (increased rated power). The
remaining overload capacity of the drive system (for 60 s/3 s) is reduced accordingly to
approx. 120 %/160 %.
Typical applications stand out due to low dynamic requirements, e.g. pumps and fans,
general horizontal materials handling technology and line drives.

The controllers that can be operated at increased rated power are listed in the
rated data in the 8400 hardware manual.
• The hardware manual has been stored in electronic form on the data carrier
supplied with the 8400 drive controller.

Stop!
Operation at increased rated power is only permitted ...
• with the controllers listed in the 8400 hardware manual for this type of
operation in the stated mains voltage range.
• at switching frequencies of 2 kHz and 4 kHz.
• at a max. ambient temperature of 40 °C.
• with the types of installation stated in the 8400 hardware manual.
• with the fuses, cable cross-sections, mains chokes, and filters as required in
the 8400 hardware manual for this operation.
• after parameterisation according to the specifications below.
Required parameterisation
Operation at increased rated power requires the following settings to be made particularly
for the V/f characteristic control (VFCplus), but also for all other types of control:
Parameter
C00016
C00018
C00021
C00120
C00123
C00173
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Info
VFC: Vmin boost
Switching frequency
Slip compensation
Setting of motor overload (I²xt)
Device utilisat. threshold (Ixt)
Mains voltage
L
Required setting
adapt to motor
(reduce)
1: 4 kHz var./drive-opt.
adapt to motor
adapt to motor
120 %
see hardware manual
 Rated data
Firmware ≤ 11.00 - DMS 6.0 EN - 10/2011