Ramp Monitoring - ABB FSO-21 User Manual

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Ramp monitoring

The ramp monitoring is configured with five parameters as described below.
Defining the ramp monitoring limits
Speed
E
A
B
ID Description
A Ramp minimum 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 the ramp down from the Scaling speed to zero. Configured for each SARn
ramp, n = 0...1 separately.
For example for SAR0: parameter
C Ramp maximum 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
range. This parameter moves the location of the maximum ramp forward on the time
axis, when monitoring is started. Common for all ramps SARn, n = 0...1.
E Scaling speed: value of parameter
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.
Limit hit: If the motor speed hits a ramp monitoring limit, the FSO module activates
the STO function and generates an event. The user can select the event type
(warning, fault or event) with parameter
Motor speed
C
SARx.11 SAR0 min ramp time to
200.102 SAR0 ramp time to
SARx.12 SAR0 max ramp time to
200.202 SAR speed
Ramp monitoring using the ramps
Speed
D
Ramp monitoring started
scaling. Speed value that the
FSOGEN.62 STO indication safety
Safety functions 51
Limit hit
zero.
zero.
zero.
SARx.02 SAR initial allowed
limit.