Safety functions 49
Ramp monitoring
The ramp monitoring is configured with five parameters as described below.
ID
Description
A
Minimum deceleration time from the Scaling speed to zero. Configured for each SARn
ramp,
n = 0…1 separately.
For example for SAR0: parameter
B
Target time for deceleration from the Scaling speed to zero. Configured for each SARn
ramp, n = 0…1 separately.
For example for SAR0: parameter
C
Maximum deceleration time from the Scaling speed to zero. Configured for each SARn
ramp, n = 0…1 separately.
For example for SAR0: parameter
D
Initial allowed range for the SARn ramp: value of parameter
. This parameter moves the location of the maximum ramp forward on the time
axis, when monitoring is started, that is, at time of D, the maximum limit is the value of
the motor speed, that was in use when the monitoring started. Common for all ramps
SARn, n = 0…1.
E
Scaling speed: value of parameter
. Speed value that the
FSO module uses as a reference point in ramp time calculations. This value and the
minimum (A), target (B) and maximum (C) ramp times define fixed slopes for the
deceleration ramps that are used in ramp monitoring.
Common for all ramps SARn, n = 0…1.
Speed
B
C
A
E
Speed
Motor speed
Ramp monitoring started
Defining the ramp monitoring limits
Ramp monitoring using the ramps
D
Limit hit
*
*
* Lower monitoring limit is always 30 rpm below actual
speed.Starting point of the upper monitoring limit is based
on maximum deceleration slope (E/C) and D.
Содержание FSO-12
Страница 1: ... OPTIONS FOR ABB DRIVES FSO 12 safety functions module User s manual ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 26: ...26 Introduction to the manual The PROFIsafe certificate for the FSO 12 module is attached below ...
Страница 36: ...36 Safety information and considerations ...
Страница 136: ...136 Safety functions ...
Страница 196: ...196 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Страница 200: ...200 PROFIsafe ...
Страница 326: ...326 Start up ...
Страница 386: ...386 Dimension drawings ...