On Output - Siemens SIRIUS 3RW30 Manual

Commissioning
12.2 Commissioning the 3RW30
CAUTION
Risk of property damage
Make sure the selected ramp time is longer than the actual motor ramp-up time. If not, the
SIRIUS 3RW30 may be damaged because the internal bypass contacts close when the set
ramp time elapses. If the motor has not finished starting up, an AC3 current that could
damage the bypass contact system will flow.
When using the 3RW40: The 3RW40 has an integrated ramp-up detection function that
prevents this operating state from occurring.
12.2.6

ON output

ON output contact
The output contact at terminal 13/14 (ON) closes if a signal is present at terminal 1 (IN); it
remains closed until the start command is removed.
The output can be used, for instance, to control a line contactor connected upstream or to
implement latching if you selected pushbutton control. For recommended circuits, refer to
chapter Typical circuit diagrams [Page 167].
For the state diagram of the contacts in the various operating states, refer to chapter 3RW30:
LEDs and troubleshooting [Page 44].
96
IN 1
t
R on
U
U
N
U
S
t
R on
ON 13/14
t
R on
Figure 12-1 State diagram of the ON output contact
t
t
t
SIRIUS 3RW30 / 3RW40
Manual, 01/2010, 535 1995-02 DS01