Lenze E82MV152_4B

Function library
Configuration of analog and digital setpoints and actual values
7−37
L
EDB82MV752 EN 5.2
Inverse setpoint selection
f
C0011
Deadband
Offset= -100 %, gain = -100 %
Offset > -100 %, gain < -100 %
Offset < -100 %, gain > -100 %
5V
10 V
20 mA
10 kHz
0V
0mA
0 kHz
Setpoint
signal
8200vec531
Fig. 7−10 Gain and offset at inverse setpoint selection
Example of inverse setpoint selection
A dead band of +2 V (= 20 %) is to be set for an inverse setpoint selection (0 ... +10 V). The output
frequency is to be inverted with an increasing setpoint signal and is to reach −30 % at setpoint +10 V.
f
C0011
(100 %)
Deadband
P1
P2
+10V
(100 %)
+2V
(20 %)
0V
(0 %)
-30 %
Setpoint
signal
8200vec532
Fig. 7−11 Calculation example for gain and offset
Gain calculation
Gain[%] 
f(P
2
)  f(P
1
)
U(P
2
)  U(P
1
)
 100% 
 30%  100%
100%  20%
  100% 162.5%
Offset calculation
Offset(P
2
)[%] 
f(P
2
)[%]
Gain[%]
 100%  U(P
2
)[%] 
 30%
 162.5%
 100%  100% 81.5%