Lenze I95AE240F User Manual

19.3 Ramp monitoring
In
addion, the deceleraon ramp can be parameterised and monitored for the stop funcons
SS1 and SS2. If the parameterised ramp is not exceeded, it is then switched to the parameter-
ised stop funcon STO or SOS.
Funconal descripon
Monitoring the deceleraon process guarantees a higher safety level.
•
The applicaon leads the drive to a standsll.
•
If the r
amp monitoring is acve, the
starng value of the ramp and the smoothing me
must be dened as percentage value.
If the speed exceeds the deceleraon ramp parameterised within the stopping me or before
the tolerance window (n = 0) is reached, an error message is triggered and an error stop is
iniated.
Safe ramp monitoring for SS1-r and SS2-r
n
0
STO
SS1
t
STO
❶
❹
❸
❷
C
n
t
0
STO SOS
SS2
❶
❹
❸
❷
D
1.
0x2894:001 40x2894:001
SS1, SS2: St
opping me
2.
0x287B:001 40x287B:001
Tolerance window (n=0)
3.
0x2894:003 40x2894:003
SS1, SS2: Ramp smoothing me
4.
0x2894:005 40x2894:005
SS1, SS2: s
tart oset ramp
Condion
•
Sa
fe speed
evaluaon via the parameterised encoder system.
•
Ramp monitoring is acvated. 40x2894:005
The parameterised monitoring ramp considers the parameters of the decelera-
on ramp in the applicaon.
0...30 % of the actual speed are added to the actual speed as start oset. The
sum is used as c
onstant starng value.
Alternave: An absolute value can be parameterised as start oset. The value is
set in the following parameter. 0x2894:006 40x2894:006.
The following parameter denes whether the relave or absolute oset value is
used. 0x2894:004 40x2894:004
The Lenz
e seng of the start oset considers the tolerance window (n=0) as
oset. 0x2894:005 40x2894:005
The monitoring ramp starts aer an internal deceleraon
me has elapsed. The
internal deceleraon me depends on "SS1, SS2: smoothing me" and "SS1,
SS2: stopping me".
Safety funcons
Ramp monitoring
377

Lenze I95AE240F Specifications

General

Brand	Lenze
Model	I95AE240F
Category	Inverter
Language	English