Siemens CU240B-2 Compact Operating Instructions

Installing
3.3 Terminal strips on CU240B-2 Control Units
CU240B-2 and CU240E-2 Control Units
Compact Operating Instructions, 04/2015, A5E35792002B AA
11
Additional options for wiring the digital inputs
Connecting P-switching contacts with an external
power supply
You must remove the jumper b
etween
terminals 28 and 69 if it is necessary to
have electrical isolation between the
external power supply and the internal
inverter power su
pply.
Connecting M-switching contacts with an external
power supply
It is not permissible that terminals 28 and
69 are connected with one a
nother.
Factory setting of the terminal strip on the CU240B-2
The factory setting of the terminals depends on whether the Control Unit has a PROFIBUS /
PROFINET interface.
Control Units with USS interface
The fieldbus interface is not active.
--- No function.
DO 0: p0730
AO 0: p0771[0]
DI x: r0722.x
AI 0: r0755[0]
Speed setpoint (main setpoint): p1070[0] = 755[0]
Figure 3-2 Factory settings of the CU240B-2 Control Unit

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English