Lenze EDS4900U-REG - Manual (Page 118)

Configuration
7-27
48XX/49XXSHB0399
Signal flow Function
4900SStr118
A 1
T h r e s h o l d
C 0 1 7
n a c t
n
act
ˆ n
x
Threshold adjustable under C017 from -5000rpm...+ 5000rpm.
Hysteresis fixed 25rpm, default setting: C017 = -3000rpm
l Purpose
For monitoring the act. speed with torque control C005 = -40-...-43-
l Output level = LOW
4900SStr119
A 2
n - c o n t r o l l e r
o u t p u t
n-controller output = M
max
Window fixed 99.9% from n-controller output.
Hysteresis fixed 1.9%. The signal is equivalent to I
max
. LED at the operating unit
l Purpose
Monitoring of the speed control circuit for limitation (control error)
l Output level = HIGH
4900SStr120
A 3 R F G
O u t p u t
W i n d o w s
C 2 4 1
R F G
I n p u t
RFG
Inp
= RFG
outp
Window adjustable under C241 from 0...100%
Hysteresis fixed 1% of n
max ,
default setting: C241 = 1%
l Purpose
Signal for detection of acceleration processes in the set-value channel
l Output level = HIGH
4900SStr127
A 4
T h r e s h o l d
C 0 1 9
n a c t
n
act
= 0
Threshold adjustable under C019 from 0...5000rpm.
Hysteresis fixed 25rpm, default setting: C019 = 50rpm
l Purpose
Signal for reliable mains switch-off, standstill detection
l Output level = LOW
A 5
W i n d o w
C 2 4 0
n a c t
n s e t
4900SStr121
4900SStr122
n m a x
t
t
A 5
t
A c t . s p e e d v a l u e
L o a d t o r q u e
n = n
a c t s e t
n
act
= n
set
Window adjustable under C240 from 0...100%.
Hysteresis fixed 25rpm, default setting: C240 = 1%
l Purpose
Signal for detection of control deviation in the speed control circuit
l Output level = HIGH
4900SStr123
C 1 1 6 / C 1 1 7
T h r e s h o l d
C 2 4 2
n a c t
Ün
act
Ü ˜ n
x
Threshold adjustable from 100 to + 5000rpm under C242.
Hysteresis fixed 2% of n
max
Default setting: C242 = 1000rpm
l Purpose
Monitoring of the actual speed for overspeed
l Output level = HIGH
4900SStr124
C 1 1 6 / C 1 1 7
C 0 4 6
C 0 4 9
³ 1
T h r e s h o l d
C 2 4 3
ЬC046Ь or ЬC049Ь ˜ n
x
Threshold adjustable from 0 to 100% under C243
Hysteresis fixed, default setting: C243 = 1%
l Purpose
Starting protection at digital frequency coupling and analog correction signal
l Output level = HIGH
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