Parallel Connection Of Both Channels - Siemens SIMATIC ET 200S Operating Instructions Manual

5.4.11

Parallel connection of both channels

Definition
In order to achieve higher output current, you can connect both channels of the 2PULSE in
parallel. You then obtain a rated current of 4 A. This allows you to also operate final
controlling elements with a higher power requirement directly at the 2PULSE.
Parameter assignment and operation
You can enable parallel connection of the two channels during the configuration in HW
Config by selecting the check box "Parallel connection Channel 0 and 1".
Once enabled, the 2PULSE operates like a single-channel module. All the parameter
assignments and operations via the control interface have to be executed with Channel 0.
Channel 1 cannot be configured and operated.
Feedback signals are also only provided for Channel 0.
Measurement of current
During the measurement of current, the measured values from both channels are averaged
once more. This results in a measuring range up to 4 A.
The measured value of the current is supplied as a SIMATIC S7 analog value in the
feedback interface. A current of 4 A corresponds here to the SIMATIC S7 analog value of
27648.
The accuracy of the current measurement also amounts to 3% of the measuring range in
case of parallel connection.
Technological Functions
Operating Instructions, 06/2010, A5E00124867-07
2PULSE
5.4 Modes and Functions
315