Siemens SINAMICS DCM Manual page 519

Descriptions of functions
10.11 Setpoint channel
Operating modes for ramp-function generator rounding
Control signals
Table 10- 46 Control signals for the ramp-function generator operating mode
Ramp-function generator enable
Control word bit 4, p01140[c]
Ramp-function generator start
Control word bit 5, p01141[c]
Setpoint enable
Control word bit 6, p01142[c]
Set ramp-function generator
(p50640[c])
Ramp-function integrator operation
(p50302)
Enable switchover of the ramp-function
integrator (p50646)
Ramp-function generator settings 2 and
3
Ramp-function generator tracking ON
(p50317)
Set ramp-function generator on switch-
ing off (p50318)
Bypass ramp function generator
520
p50295 = 0:
When a setpoint reversal occurs during ramp-up (or ramp-down),
the ramp-up (or ramp-down) process is interrupted and initial
rounding for the ramp-down (or ramp-up) process starts immediate-
ly. This does not mean any additional increase (or decrease) in the
setpoint, but rather a bend in the signal at the ramp-function gener-
ator output (i.e. a jump in the acceleration).
p50295 = 1:
When a setpoint reversal occurs during ramp-up or ramp-down, the
ramp-up/ramp-down process slowly crosses over into ramp-
down/ramp-up. This results in an additional increase (or decrease)
in the setpoint, as well as a bend in the signal at the ramp-function
generator output (i.e. there is no jump in the acceleration).
0 = Ramp-function generator disabled; ramp-function generator output set to 0
1 = Ramp-function generator enabled
1 = Setpoint is switched into the ramp-function generator input
0 = Ramp-function generator is stopped at the current value (ramp-function
generator output is switched in as ramp-function generator input)
1 = Setpoint enabled at ramp-function generator input
0 = Switchover to ramp-function generator setting 1 performed and 0 applied to
the input (ramp-function generator output travels to 0)
1 = The ramp-function generator output is set to the setting value (selection via
p50639).
See below and description of p50302 in the parameter list found in the
SINAMICS DCM List Manual.
See below.
See below.
See below and description of p50317 in the parameter list found in the
SINAMICS DCM List Manual.
See description of p50318 in the parameter list found in the SINAMICS DCM
List Manual.
1 = The ramp-function generator operates with ramp-up time and ramp-down
time = 0.
The function is then controlled via the binector selected using p50641. It is also
possible to select the option of bypassing the ramp-function generator in operat-
ing modes JOG, CREEP, and APPLY FIXED SETPOINT.
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SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001