Operation Enable (Enable) - Control Word Bit 3 - Siemens SINAMICS DCM Operating Instructions Manual

Descriptions of functions
10.7 Switch on, switch off, enable
10.7.4

Operation enable (enable) - control word bit 3

The enable signal is HIGH active (log. "1" state = enable).
Control word bit 3 and terminal X177.13 (enable) are logically ANDed. See also function
diagram 2580.
Procedure for applying operation enable (if a switch-on command is present):
1. With positive brake-release time (p50087):
2. The ramp-function generator, n controller, and I controller are enabled.
3. Operating state o0 is reached.
4. Once a negative brake-release time (p50087) has elapsed, the "Release holding or
Procedure for withdrawing operation enable:
1. The ramp-function generator, n controller, and I controller are disabled.
2. Reduction in armature current
3. The armature firing pulses are disabled.
4. The "Close operational brake" signal is output (r53210.0 = 1, where p50080 = 2).
5. Operating state o1.0 or higher is reached.
6. The drive coasts down (or is decelerated by the operational brake).
7. Once n < nmin (p50370, p50371), the "Close holding brake" signal is output (r53210.0 =
400
The "Release holding or operational brake" signal (r53210.0 = 0) is output and p50087 is
awaited in operating state o1.0.
With negative brake-opening time (p50087 negative):
Go immediately to step 2; brake is still closed (r53210.0 = 1)
operational brake" (r53210.0 = 0) signal is output.
1, where p50080 = 1).
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
SINAMICS DCM DC Converter