Rockwell Automation WebPak 3000 DC Drives Hardware Reference, Installation and Troubleshooting - Manual (Page 32)

2-20 WebPak 3000 DC Drive Hardware Reference
Table 2.5 - I/O Expansion Analog Inputs
Parameter Name Parameter Number Terminal Strip Location
TENSION SETPOINT IN P.492 50, 51
TENSION/DANCER FDBK P.493 52, 53
TENSION SETPT SIG TYPE P.413
TENSION SETPOINT ZERO P.414
TENSION SETPOINT GAIN P.415
TENSION/DANCER ZERO P.416
TENSION/DANCER GAIN P.417
* Terminals 33 (+10 VDC) and 34 (GND) are available for use with up to two 5 k Ω potentiometers.
Analog Outputs
The I/O Expansion board supports two analog outputs. Analog output 2 can generate a bipolar
DC voltage only. The other can be configured to generate one of the following signals: DC
voltage (0 to
± 10 VDC) or 4-20 mA. Both outputs are unfiltered (whereas standard meter
outputs are averaged). Analog outputs can be scaled to generate DC voltage signals as low as
5 V, but maximum resolution (0.025%) is obtained when the full scale output signal is used.
The full scale value is determined based on the selected parameter group: load, speed,
voltage, power, field, or other. Analog output signals are updated every I/O scan (typically 20
msec). Table 2.6 lists the analog outputs and related parameters. Figure 2.9 provides an
example of how to wire an external supply for 4-20 mA output.
Table 2.6 - I/O Expansion Analog Outputs
Parameter Name Parameter Number Terminal Strip Location
ANLG OUT 3 SELECT P.418 54, 55
ANLG OUT 3 SIG TYPE P.419
ANLG OUT 3 GAIN ADJ P.420
ANLG OUT 4 SELECT P.421 56, 57
ANLG OUT 4 GAIN ADJ P.422
Frequency Input
The I/O Expansion board supports one unipolar frequency input: FREQ IN (P.491). The freq.
input signal is read every 20 msec. Table 2.7 lists the frequency input and related parameters.
Table 2.7 - I/O Expansion Frequency Input
Parameter Name Parameter Number Terminal Strip Location
FREQ IN P.491 39, 40, 41
FREQ IN ZERO P.423
FREQ IN FULL SCALE P.424
Frequency Output
The I/O Expansion board supports one unipolar frequency output. The output is unfiltered.
The full scale value is determined based on the selected parameter group: load, speed,
voltage, power, field, or other. The frequency output signal is updated every 20 msec.
Table 2.8 lists the frequency output and related parameters.
Table 2.8 - I/O Expansion Frequency Output
Parameter Name Parameter Number Terminal Strip Location
FREQ OUT SELECT P.425 42, 43, 44
FREQ OUT ZERO P.426
FREQ OUT FULL SCALE P.427