ABB ACSM1 Series, Manual

Page: 385 / 510

Standard function blocks
385
Outputs Output (O): REAL
High limit output (O=HL): Boolean
Low limit output (O=LL): Boolean
MOTPOT
(10067)
Illustration
Execution time 2.92 µs
Operation The motor potentiometer function controls the rate of change of the output from the
minimum to the maximum value and vice versa.
The function is enabled by setting the ENABLE input to 1. If the up input (UP) is 1, the
output reference (OUTPUT) is increased to the maximum value (MAXVAL) with the
defined ramp time (RAMPTIME). If the down input (DOWN) is 1, the output value is
decreased to the minimum value (MINVAL) with the defined ramp time. If the up and
down inputs are activated/deactivated simultaneously, the output value is not increased/
decreased.
If the RESET input is 1, the output will be reset to the value defined by the reset value
input (RESETVAL) or to the value defined by the minimum input (MINVAL), whichever is
higher.
If the ENABLE input is 0, the output is zero.
Digital inputs are normally used as up and down inputs.
Inputs Function enable input (ENABLE): Boolean
Up input (UP): Boolean
Down input (DOWN): Boolean
Ramp time input (RAMPTIME): REAL (seconds) (i.e. the time required for the output to
change from the minimum to the maximum value or from the maximum to the minimum
value)
Maximum reference input (MAXVAL): REAL
Minimum reference input (MINVAL): REAL
Reset value input (RESETVAL): REAL
Reset input (RESET): Boolean
Outputs Output (OUTPUT) REAL
MOTPOT
62
TLA1 1 msec (1)
ENABLE
UP
DOWN
RAMPTIME
MAXVAL
MINVAL
RESETVAL
RESET
OUTPUT
OUTPUT(62)