Siemens SINAMICS G120 - Setting SS1

5.12.5 Setting SS1
Monitoring modes
You can select between two different monitoring modes of the SS1 function.
Braking ramp monitoring Acceleration monitoring
'HOD\WLPHIRUEUDNLQJ
UDPS
6WDQGVWLOO
PRQLWRULQJ
6SHHG
'HVHOHFW
66
)',RU
352),VDIH
FRQWUROZRUG
)'2RU
352),VDIH
VWDWXVZRUG
672
DFWLYH
W
6%5
672
W
W
6WLOOVWDQG
¾EHUZD
FKXQJ
$EVFKDOWJH
VFKZLQGLJ
NHLW
W
0D[LPDOH=HLWELV]XU$EVFKDO
WXQJGHV'UHKPRPHQWV
'UHK]DKO
66
$EZDKO
)',RGHU
352),VDIH
6WHXHUZRUW
)'2RGHU
352),VDIH
6WDWXVZRUW
672
DNWLY
6$0
672
W
W
● Using the SBR (Safe Brake Ramp) function,
the inverter monitors whether the motor speed
decreases.
● The gradient of the SBR function can be
adjusted. The SBR function only starts after the
"Delay time for braking ramp". The SBR
function starts with the speed setpoint that was
applicable when SS1 was selected.
● When the standstill monitoring threshold is
fallen below, the inverter safely switches off the
motor torque (STO).
● The inverter monitors the motor speed using
the SAM (Safe Acceleration Monitor) function.
● The inverter prevents the motor from re-
accelerating by continuously adjusting the
monitoring threshold to the decreasing speed.
● The inverter reduces the monitoring threshold
until the "Shutdown speed" has been
reached.
● The inverter safely switches off the motor
torque (STO) if one of the following conditions
is fulfilled:
– The inverter detects that the motor is
stationary.
– The maximum time until the torque is
switched off has expired.
Commissioning
5.12 Setting extended functions
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 175