Descriptions of functions
10.12 Setpoint channel
SINAMICS DCM DC Converter
558 Operating Instructions, 12/2018, A5E34763375A
The E-STOP function causes the drive to enter the "Switching on inhibited" operating state.
This must be acknowledged by activating the "Shutdown" function, e.g. by opening terminal
X177.12.
Procedure for applying E-STOP:
1. The ramp-function generator, n controller, and I controller are disabled.
2. Reduction in armature current
3. a) p51616 = 0: E-STOP acts like OFF2 (firing pulses are disabled as soon as I = 0).
b) p51616 = 1: E-STOP immediately stops firing pulses from being output (without waiting
for I = 0).
4. The "Close operational brake" signal is output (r53210.0 = 1, where p50080 = 2).
5. Operating state o10.0 or higher is reached.
6. The field current is maintained at a fixed point (i.e. there is
increase in the field current,
even on exiting the field-weakening range).
7. The "Line contactor closed" relay (terminal XR1-109 and XR1-110) drops out.
8. The drive coasts down (or is decelerated by the operational brake).
9. The wait time (to be set at p50258) elapses.
10.The field is reduced to a parameterizable value (p50257).
11.Once n < nmin (p50370, p50371), the "Close holding brake" signal is output
(r53210.0 = 1, where p50080 = 1).
15 ms after E-STOP has been applied (even if point 7 in this procedure has not yet been
reached), the "Line contactor closed" relay (terminal XR1-109 and XR1-110) will always drop
out; this is triggered by the hardware.
Table 10- 65 Definitions
Ramp-up Acceleration from lower positive to higher positive speeds (e.g. 10% to 90%) or from lower
negative to higher negative speeds (e.g. -10% to -90%)
Return flow
Deceleration from higher positive to lower positive speeds (e.g. 90% to 10%) or from higher
negative to lower negative speeds (e.g. -90% to -10%)
Transition from negative to
positive speeds
E.g. from -10% to +50%:
From -10% to 0 = ramp-down and
From 0 to +50% = ramp-up, and vice versa
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