Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 - Manual (Page 127)

Configuring Parameters for the I/O Expansion Kit 11-11
11.5 Configuring the Frequency Output
The I/O Expansion kit has one unipolar frequency output. The output is unfiltered. The
full scale value (
FSV ) is based on the selected parameter group: load, speed, voltage,
power, field, or other.
The frequency output is read every 5msec when FEEDBACK SELECT (P.200) is set to DC
TACH , PULSE TACH , or AC TACH . It is read every 10msec when FEEDBACK SELECT (P.200)
is set to ARMATURE VOLT .
FREQ IN ZERO
(P.423)
Specifies the
minimum input
frequency. This is the
frequency that
corresponds to zero. Parameter Range: 2.0 to FREQ IN FULL SCALE kHz
Default Setting: 2.0 kHz
Parameter Type: Configurable
OIM Menu Path(s): Input/Output - Frequency I/O
If the input frequency drops below the frequency specified by this parameter, the
resulting digital value remains zero (it will not go negative).
FREQ OUT FULL SCALE
(P.427)
The frequency
generated when the
signal driving the
frequency output is at
full scale, as detailed
in table 11.1. Parameter Range: 2.0 to 250.0 kHz
Default Setting: 250.0 kHz
Parameter Type: Configurable
OIM Menu Path(s): Input/Output - Frequency I/O
For example, if FREQ OUT SELECT (P.425) is set to CML FEEDBACK , the FREQ OUT
FULL SCALE frequency value is output when armature current is at MAXIMUM
CURRENT (P.007). ( MAXIMUM CURRENT is used as the basis for current minor
loop scaling.)
FREQ OUT SELECT (P.425)
Selects the signal
used to drive the
frequency output
(terminals 42,43, and
44 on the I/O
Expansion kit). Parameter Range: See table 11.1 for options.
Default Setting: ZERO
Parameter Type: Configurable
OIM Menu Path(s): Input/Output - Frequency I/O