Johnson Controls VFD66 Series Product/Technical Bulletin page 6

Wiring an Input Device
Connect a low-voltage input signal device to Terminal
Block TB3 (see Table 3 and Figure 5). See Table 4,
Figure 6, Figure 7, and Figure 8 for information on
wiring specific Johnson Controls/PENN™ input
devices to the VFD66 controls.
Table 4: Wiring Johnson Controls/PENN
Input Devices
Input Device Input Device
Terminal
P35AG-9200R
Transducer
A350PS-1C or
P352PN Series
Controls
P399 Series
Transducers
* Use Terminal 3 for input from a second input device.
P35 Transducer
2
3
1
Figure 6: Wiring P35 Transducers to VFD66
Terminal Block 3
Figure 7: Wiring P399 Transducers to VFD66
Terminal Block 3
6 VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin
VFD66 Control
TB3 Terminal
1 1
2 2 (or 3)*
3 4
V 2 (or 3)*
C 4
Red 1
White 2 (or 3)*
Black 4
TB3
1
2 3 4
Red (5 VDC Supply)
Black
White
(Common)
(Output Signal)
Red
2
1
White Black
A350P Control
or P352PN Control
Figure 8: Wiring A350P Controls or P352PN
Controls to VFD66 Terminal Block 3
Wiring an External Alarm to the VFD66 Control
Some models of the VFD66 controls feature an alarm
output. The Metal Oxide Silicon Field Effect Transistor
(MOSFET) alarm output activates when a permanent
fault condition occurs. See Table 14, Figure 5, and
Figure 9.
24VAC/30 VDC
Figure 9: Wiring the Alarm Output
TB3
Wiring Power
3
4
Select wire size for field wiring based on a wire
insulation temperature resistance rating of 167°F
(75°C), with a maximum wire size of 12 AWG. Use
only stranded copper wire, rated for at least 600 volts.
Maximum terminal tightening torque for all VFD66
controls electrical terminals is 5 lb·in (0.565 N·m).
Second A350P Control
or P352PN Control
(if used)
V: 0-10 VDC Output
C: Common (-)
TB3
1 2 3 4
VFD66 Control
Terminal Block T 4 B
1 2
External Alarm
Alarm output
is rated for 100 mA
at 30 VDC/24 VAC.
Visual
or Audible
Device