VFD68 Variable Frequency Drive (575 VAC) Installation Instructions
18
0.5–4.5 VDC Ratiometric P499 Transducer
The default parameter settings (Table 13) on the VFD68 Drive are configured to operate a condenser fan motor on
an R410 condensing unit, using a
P499RCP-107 or P499RAP-107 Ratiometric Transducer (Figure 12).
For high-pressure refrigerants other than R410a, you must calculate and change the P.90x parameters. For
medium and low pressure refrigerants, you must determine the proper P499R Transducer and then calculate and
change the P.90x parameters.
For more information, see
on page 19 and
Parameter Settings Calculations for Motor Speed
Note:
To use a 0
–
10V or 4
–
20mA P499 Transducer, refer to the
VFD68 Variable Frequency Drive Technical
Bulletin (Part No. 24-7664-3051)
.
Table 13: Settings for a 0.5–4.5 VDC Transducer
Setting
0
–
5 V
Analog Input Terminals
IN1 and IN2
Figure 12: Wiring 0.5 to 4.5 VDC Ratiometric Input Signal Transducers
