Siemens SINAMICS Series Operating Instructions Manual page 565

Acceleration signal dv/dt (r52191)
This signal specifies the change in ramp-function generator output r52190 during the time
set in p50542.
Braking distance (r52047, r52048)
This signal specifies the distance that the drive would travel if, e.g. it would be stopped using
an OFF1 command.
This braking distance is calculated under the assumption that at the ramp-function generator
input, a speed setpoint of 0 would be input and the speed actual value would go down to 0
with the set ramp-down time and the set rounding-off.
The calculation of the braking distance is only then correct if the ramp-down time and
rounding elements do not change during the braking process.
The braking distance is output in the same unit as the encoder position actual value r0482.
This means that one encoder revolution corresponds to a value of p0400×2^p0418
The braking distance is available in two different data formats:
● r52047 has the Unsigned32 data type
● r52048 has the FloatingPoint32 data type
10.12.2 Jog
See also function diagram 3125 in the SINAMICS DCM Parameter Manual
The JOG function can be applied via the binectors selected using p50435 index .00 to .07,
and via control word bit 8 and bit 9 (r0898.8 & r0898.9) (see function diagram for logic
operation).
The "Jog" function can only be executed if "Switch off" and "Operation enable" have been
applied.
The "Jog" function is applied by one or more of the sources referred to (binectors, control
word bits) entering the log. "1" state. During this, each source is assigned a setpoint (to be
selected using p50436).
If two or more sources apply the "Jog" function at the same time, then 0 is applied as the jog
setpoint.
For each source (binector, control word bit) with which the "Jog" function can be applied,
p50437 may be used to determine whether the ramp-function generator is bypassed
(binector r53170.11). In this case, the ramp-function generator operates with ramp-up time =
0 and ramp-down time = 0.
Procedure for applying jog:
If "Jog" is applied, the system is switched on and the jog setpoint applied via the ramp-
function generator. For this procedure, refer to the section titled "Switch on/Switch off
(ON/OFF1)".
Procedure for withdrawing jog:
Once the "Jog" function has been withdrawn, the procedure begins in the same way as the
"Switch off" function, as outlined in the section titled "Switch on/Switch off (ON/OFF1)".
Once n < nmin, the controller is disabled and, following a parameterizable time (p50085)
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Descriptions of functions
10.12 Setpoint channel
563