Siemens SINAMICS S120 Manual page 30

3 DCC Blocks
SINAMICS
parameter
number
p22051 boBit1Limit
Speed
p22052 boBit2Limit
Speed
p22053 boPreLimit
Switch
p22054 rLimit1 [%]
p22055 rLimit2 [%]
p22056 rLimit3 [%]
p22057 rLimit4 [%]
p22058 rOutSpeedSetpoint
PLS [%]
NOTE p22054 (PreLimitSwitch_rLimit1 [%]) must be 100. According to truth table on
page 32 of SIMOCRANE Drive-Based Technology, if Bit1Limitspeed,
Bit2LimitSpeed, and Bit3LimitSpeed are all false, then speed limit 1 (p22054) is
selected.
NOTE p22057 (PreLimitSwitch_rLimit 4 [%]) is where desired pre-limit speed for
LimitSwitch is set, because when either positive or negative direction limit switch
is triggered, r21851 (LimitSwitch_boOut_ActivatePreLimitSwitch (p22053)) goes
high, activating the CraneDCC PreLimitSwitch logic.
Extended Crane Drive-Based Technology AC
Extended Crane Drive-Based Technology SINAMICS S120
DCC Add-On Description 109767457,
Name Connection
type
IN
IN
IN
IN
IN
IN
IN
OUT
V1.2, 09/2019
Default Data
assignment type
0 BOOL If using LimitSwitch from
ExtendedCraneDCC, this
can be left at 0
0 BOOL If using LimitSwitch from
ExtendedCraneDCC, this
can be left at 0
0 BOOL Connect to r21851
(LimitSwitch_boOut_
ActivatePreLimitSwitch
(p22053)) from
ExtendedCraneDCC
100 REAL Leave default value of 100
50 REAL If using LimitSwitch from
ExtendedCraneDCC, this
can be left at 0
25 REAL If using LimitSwitch from
ExtendedCraneDCC, this
can be left at 0
5 REAL Actual pre-limit speed used
for LimitSwitch block. Set
desired pre-limit speed.
0 REAL If using LimitSwitch function
of ExtendedCraneDCC,
connect this to p1070 (CI:
Main setpoint) of drive axis.
Meaning
30