Lenze 4800 - Page 118

Configuration
7-27
48XX/49XXSHB0399
Signal flow Function
4900SStr118
A1
Threshold
C017
n
act
n
act
 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
A2
n -c o n tr o lle r
output
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
A3
RFG
O utput
W indow s
C241
RFG
Input
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
A4
Threshold
C019
n
act
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
A5
W indow
C240
n
act
n
set
4900SStr121
4900SStr122
n
max
t
t
A5
t
Act. speed value
Load torque
n = n
act set
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 116/C 117
Threshold
C242
n
act
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 116/C 117
C046
C049
³
1
Threshold
C243
ÜC046Ü or ÜC049Ü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
Show/Hide Bookmarks