Siemens 6RA8085-6DS22

Descriptions of functions
10.12 Setpoint channel
SINAMICS DCM DC Converter
560 Operating Instructions, 12/2018, A5E34763375A
Operating modes for ramp-function generator rounding
p50295 = 0:
When a setpoint reversal occurs during ramp
-up (or ramp-down),
the ramp
-up (or ramp-down) process is interrupted and initial
roun
ding for the ramp-down (or ramp-up) process starts
imm
ediately. This does not mean any additional increase
(or
decrease) in the setpoint, But rather a bend in the signal at the
ramp-function generator 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 ramping-
down/ramping
-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).
Control signals
Table 10- 66 Control signals for the ramp-function generator operating mode
Ramp-function generator enable
Control word bit 4, p01140[c]
0 = Ramp-function generator disabled; ramp-function generator output set to 0
1 = Ramp-function generator enabled
Ramp-function generator start
Control word bit 5, p01141[c]
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)
Setpoint enable
Control word bit 6, p01142[c]
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)
Set ramp-function generator
(p50640[c])
1 = The ramp-function generator output is set to the setting value (selection
via p50639).
Ramp-function integrator operation
(p50302)
See below and description of p50302 in the parameter list found in the
SINAMICS DCM List Manual.
Enable switchover of the ramp-function
integrator (p50646)
See below.
Ramp-function generator settings 2 and 3
See below.
Ramp-function generator tracking ON
(p50317)
See below and description of p50317 in the parameter list found in the
SINAMICS DCM List Manual.
Set ramp-function generator on switching
off (p50318)
See description of p50318 in the parameter list found in the SINAMICS DCM
List Manual.
Bypass ramp function generator
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
operating modes JOG, CREEP, and APPLY FIXED SETPOINT.