Analog Modules
5-62 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
5.15 Connecting Loads/Actuators to Current Outputs
Note
The necessary connecting cables, which result from the potential connection of the
analog output module, are not drawn in the figures shown below.
In other words, you must continue to take note of and implement Section 5.13 with
its generally applicable information for connecting loads/actuators.

Abbreviations and Mnemonics Used in the Figure Below

The abbreviations and mnemonics used in the figure below have the following
meanings:
QI: Analog output current
MANA: Reference potential of analog circuit
RL: Load impedance
L +: Terminal for 24 VDC supply voltage
M : Ground terminal
UISO: Potential difference between MANA and chassis ground

Connecting Loads to a Current Output

You must connect loads to QI and the reference point of the analog circuit MANA of
a current output.
+24 V
RL
L+
QI
MANA
M0 V
UISO
Chassis ground
Figure 5-23 Connecting Loads to a Current Output of an Isolated AO