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11 ramp function generator (rfg) – Siemens MICROMASTER 440 User Manual

Page 43

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Issue 10/06

6 Commissioning

MICROMASTER 440
Operating Instructions (Compact)

43

6.4.11

Ramp function generator (RFG)

Skip frequency 1

(entered in Hz)

Defines skip frequency 1, which avoids
effects of mechanical resonance and
suppresses frequencies within +/- p1101
(skip frequency bandwidth).

Skip frequency 2

Skip frequency 3

Skip frequency 4

Skip frequency bandwidth

(entered in Hz)

p1101

p1091

f

in

f

out

Skip frequency

bandwidth

Skip frequency

Ramp-up time

(enters the accelerating time in s)

Ramp-down time

(enters the deceleration time in s)

f

p1082
(f

max

)

f

1

t

p1120

p1121

Rump-up initial rounding time

(entered in s)

Ramp-up final rounding time

(entered in s)

Rump-down initial rounding time

(entered in s)

Ramp-down final rounding time

(entered in s)

Rounding type

0 Continuous smoothing
1 Discontinuous smoothing

P1133

P1132

P1131

P1130

t

f

f

2

f

1

t

up

t

down


The rounding times are recommended as
abrupt responses can be avoided therefore
reducing stress and damage to the mechanical
system.
The ramp-up and ramp-down times are
extended by the component of the rounding
ramps.

OFF3 ramp-down time

Defines ramp-down time from maximum frequency to standstill for OFF3 command.

2.00 Hz

0.00 Hz

0.00 Hz

0.00 Hz

0.00 Hz

P1091 = ...

P1092 = ...

P1093 = ...

P1094 = ...

P1101 = ...

P1120 = ...

P1121 = ...

P1130 = ...

P1131 = ...

P1132 = ...

P1133 = ...

P1134 = ...

P1135 = ...

10.00 s

10.00 s

0.00 s

0.00 s

0.00 s

0

5.00 s

0.00 s