Siemens SINAMICS DCM Manual page 512

8. The armature firing pulses are disabled.
9. The "Line contactor closed" relay (terminal XR1-109 and XR1-110) drops out.
10.Operating state o7.0 or higher is reached.
11.The wait time for field-current reduction (p50258) elapses.
12.The field is reduced to a parameterizable value (p50257).
"Switch on/Shutdown" overview
p50087 Brake-release time (positive in this case)
p50088 Brake-closing time
p50258 Wait time for automatic field-current reduction
Figure 10-61 Switch on/Shutdown
● An internal interlock becomes active once n < nmin (r50370, r50371) for the first time.
This stops the drive from attempting to decelerate again if the motor is rotated by external
influences; the n < nmin message then disappears.
● Whether level triggering or pulse triggering is selected has an overriding effect on "Switch
on", "Shutdown", and "Creep".
Note
The "Creep' function is described in the "Setpoint channel" chapter, "Creep" section.
● Selecting edge triggering causes "Switch on" and "Creep" to replace one another, i.e.:
– A "Switch on" edge at terminal X177.12 cancels a "Creep" function that had previously
– A "Creep" edge at a binector selected using p50440 cancels a "Switch on" function
SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
been triggered.
that had previously been triggered.
ac.maher.co.ir
Descriptions of functions
10.9 Switch on, switch off, enable
513