Johnson Controls VFD66 Drive - Page 30

30 VFD66 User Guide
www.johnsoncontrols.com Issue Number: 2
Electronic pressure transducer input mode
The VFD66 controls work with any electronic pressure transducer that generated a 0-5
Vdc or 0-10Vdc output signal.
The user can configure the drive using Set point (Pr 61) & Proportional Band (Pr 62) and
Max Speed (Pr 02). Note that Minimum Speed (Pr 67) and Action at Min Speed (Pr 64)
cannot be configured in this mode.
Figure 7-3 Electronic pressure transducer input mode Pr 05 = EPt
The setpoint (0 to 95%) minus Proportional band (0 to 95%) value cannot be a negative
value.
4
5
65
95
94
+
_
85
66
65
Analog
input 1
2 transducer
Input voltage
level 5/10V
Analog
input 1
Analog
input 2
Comparator,
higher of the
two is selected
Motor
frequency
Input voltage
level 5/10V
Analog
input 2
63
Input terminals
Read-write parameter
Read-only parameter
Key
XX.XX
XX.XX
X
Set point
61
62
02
Proportional
band
Max speed
Set point
RPM
10%
20%
30%
40%
50%
Proportional Band (50psi)
0%
Min
Max
Y-A xis
X-Axis
(200psi)
(250psi)
500psi
SS
SS
Pressure/
temperature
100%