Siemens CU240B-2 - Two-Wire Control: Method 1

Advanced commissioning
6.2 Inverter control
Converter with the CU240B-2 and CU240E-2 Control Units
186 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
6.2.4
Two-wire control: method 1
You switch the motor on and off using a control command (ON/OFF1) while the other control
command reverses the motor direction of rotation.
Image 6-6 Two-wire control, method 1
Table 6- 7 Function table
ON/OFF1
Reversing
Function
0
0
OFF1: The motor stops.
0
1
OFF1: The motor stops.
1
0
ON: Clockwise motor rotation.
1
1
ON: Counter-clockwise motor rotation.
Parameter
Description
p0015 = 12
Macro drive unit
Controlling the motor using the digital inputs
of the inverter:
DI 0 DI 1
ON/OFF1
Reversing
Advanced setting
Interconnecting control commands with digital inputs of your choice.
p0840[0 … n] = 722.x
BI: ON/OFF1
(ON/OFF1)
Example: p0840[0] = 722.3 ⇒ if CDS 0 (index[0]) is selected, the inverter
receives its ON/OFF1 command via DI 3.
p1113[0 … n] = 722.x
BI: Setpoint inversion (reversing)