Siemens PROFINET SIRIUS 3RW5 - Activating the Energy Saving Function

Operating principle of the energy saving mode
The following graphic shows the principle of operation of commands, parameters and
diagnostic messages:
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(QGB3DXVH6WDUWB3DXVH
W
RQ
W
RIIBPLQ
W
RII
W
3DXVHBPLQ
W
① Message "Start pause pending" (46.6) in data set 92 from 3RW5 soft starter (slot 2) (Page 168)
② Message "Energy saving mode active" (46.7) in data set 92 from 3RW5 soft starter (slot 2)
(Page 168)
③ Energy saving mode
④ Operating mode
t
o󹪜
"Time_to_Pause" parameter
t
o󹪜_min
"Time_min_length_of _stay" parameter
t
on
"Time_to_operate" parameter
t
Pause_min
"Time_min_Pause" parameter
8.1.2.2 Activating the energy saving function
After the "Start_Pause" command the 3RW5 soft starter checks the transmitted pause time
(t
Pause
). The switch to energy saving mode only takes e󹪜ect when t
Pause
is greater than the device-
speci󹪝c minimum pause time (t
Pause_min
). If the pause time is shorter, the 3RW5 soft starter
remains in operating mode and sends an error message.
To switch o󹪜 the motor, the following cyclic and acyclic control data of the controller (bits in the
process image output (PIQ)) are suppressed and overwritten with the value "0":
• "Motor CW"
• "Motor CCW"
The other bits of the PIQ (e.g. "Reset") remain active.
Functions
8.1 PROFIenergy
SIRIUS 3RW5 PROFINET communication modules
86 Equipment Manual, 05/2021, A5E35631297002A/RS-AD/004