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3.2 Setting elements with user–friendly interface
Feed modules (VS)
VS
1-110
I
cont.
[%]
I
rated
Illegal area
110
100
90
80
70
60
50
40
30
20
10
0
10.0
Fig. 3-6
Response threshold I
I
/I
weight compensation
max
Illegal area
1.0
0.8
0.6
0.4
0.3
0.2
0.1
0.08
0.06
0.04
0.03
0.02
0.01
5
6.8 10 15 22 27 39
5.6
Fig. 3-7
Supplementary current setpoint for electronic weight equalization
Inverter clock frequency PWM
If noise problems occur (the motor makes a whistling sound), the PWM inverter
clock frequency can be adapted by mounting R369 on the basic board.
In this case, it must be observed that the available current (I
ced when the clock frequency is increased. (refer to Pj Section 4.1)
The I2t limiting is designed for a pulse frequency set in the factory to 3.3 kHz
and a max. ambient temperature of 40 C. When this value is exceeded (pulse
frequency and/or ambient temperature), the response threshold must be adap-
ted (refer to Fig. 3-2).
The characteristic is valid according to Fig. 3-1.
SIMODRIVE 611A Installation and Start–Up Guide/IAA/–04.97 Edition
100.0
2
t monitoring as a function R9
56
100 150 220 390
47
68
Siemens AG 1997 All Rights reserved
04.97
07.94
1000.0
R9 [kΩ]
R46 and
R48 [k ]
680 1000
470
, I
) is redu-
n
max
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