Siemens CU240B-2 - Analog Inputs

Advanced commissioning
6.2 Inverter control
Converter with the CU240B-2 and CU240E-2 Control Units
178 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
6.2.2.4
Analog inputs
Overview
1)
Not available with Control Units CU240B-2 and
CU240B
-2 DP
Changing the function of an analog input:
1. Define the analog input type using
parameter p0756[x] and the switch on
the inverter.
2. Define the
function of the analog input
by interconnecting parameter
p0755[x] with a connector input CI of
your choice.
Interconnecting signals in the
inverter (Page 495)
Define the analog input type
The variable speed drive offers a series of default settings, which you can select using
parameter p0756:
AI 0 Unipolar voltage input
Unipolar voltage input monitored
Unipolar current input
Unipolar current input monitored
Bipolar voltage input
No sensor connected
0 V … +10 V
+2 V … +10 V
0 mA … +20 mA
+4 mA … +20 mA
-10 V … +10 V
p0756[0] = 0
1
2
3
4
8
AI 1 Unipolar voltage input
Unipolar voltage input monitored
Unipolar current input
Unipolar current input monitored
Bipolar voltage input
No sensor connected
0 V … +10 V
+2 V … +10 V
0 mA … +20 mA
+4 mA … +20 mA
-10 V … +10 V
p0756[1] = 0
1
2
3
4
8
In addition, you must also set the switch associated with the analog input. You
can find the switch on the Control Unit behind the lower front door.
• Voltage input: Switch position U (factory setting)
• Current input: Switch position I