Standstill Excitation (Field Heating) - Lenze 4800 Manual

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7.4.4

Standstill excitation (field heating)

Purpose
With this function, a reduced field current can be set as field heating to avoid
condensation in the event of motor standstill.
FIG 7-21
Code Code Name Name
C316* Reduced
field current
C317* Time delay
for the
reduced
field current
C318* Activate
field current
reduction
Standstill excitation
Possible settings
Lenze Selection
20 % 0 % I {1 % I
Frated Frated
60 s 0.0 s {0.1 s}
10 s {1 s}
100 s {10 s}
0 -0- Field current reduction function is switched off
-1- Field current reduction function is switched on
Info
} 100 % I Reference: I
Frated
With selection 0%, the ignition pulses of
the field controller are inhibited.
10 s Time which is required to activate the
reduced field current after inhibiting the
100 s
controller.
3600 s
Configuration
4900Str048
(C083)
Frated
48XX/49XXSHB0399
7-61