Siemens SINAMICS DCM Operating Instructions Manual page 534

Descriptions of functions
10.12 Setpoint channel
of 0 to 60 s, the line contactor is opened (operating state o7.0 or higher). While the wait time
that can be parameterized using p50085 (max. 60.0 s.) is running, the drive remains in
operating state o1.3.
10.12.3 Creep
See also function diagram 3130 in the SINAMICS DCM Parameter Manual.
The "Creep" function can be activated in operating state o7 and the "Operation" state while
"Operation enable" applies.
"Creep" is applied by means of one or more of the binectors selected using p50440 entering
the log. "1" state. During this, each binector is assigned a setpoint (to be selected using
p50441). If "Creep" is applied by several binectors, their corresponding setpoints are added
together.
For each source (binector) with which the "Creep" function can be applied, p50442 may be
used to determine whether the ramp-function generator is bypassed (binector r53170.12).
In this case, the ramp-function generator operates with ramp-up time = 0 and ramp-down
time = 0.
Level/Edge
p50445 = 0:
p50445 = 1:
Procedure for applying creep:
If "Creep" is applied in operating state o7, the system is switched on and the creep setpoint
is applied via the ramp-function generator.
If "Creep" is applied in the "Operation" state, the drive uses the ramp-function generator to
travel from the operating speed to the creep setpoint.
Procedure for withdrawing creep:
● For "Creep" when the "Switch on" command is not present:
If all binectors that apply the "Creep" function enter the log. "0" state, the controller is
disabled and the line contactor is opened (operating state o7.0 or higher) after n < nmin.
● For "Creep" from the "Operation" state:
If all binectors that apply the "Creep" function enter the log. "0" state, and the conditions
for the "Operation" state are still present, the drive uses the ramp-function generator to
travel from the set creep speed to the operating speed.
See also the section titled "Switch on/Switch off (ON/OFF1)" for information on edge
triggering, automatic restart, and the effect of current and torque limits when decelerating.
532
Level-controlled
Binector selected using p50440= 0: No creep
Binector selected using p50440= 1: Creep
Edge-triggered
The application of the "Creep" function is saved when the binector makes the
0 → 1 transition. The binector selected using p50444 must be in the log. "1"
state at this point. The memory is reset when this binector enters the log. "0"
state.
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A