Electrical Rating - Johnson Controls VFD66 Series Product/Technical Bulletin

NEMA 1 Enclosure
Follow these steps to remove the terminal access
cover:
1. Remove the terminal cover screw.
2. Push downward on the ventilation holes.
3. Pull outward on the top of the terminal access
cover.
NEMA 4 Enclosure
Follow these steps to remove the terminal access
cover:
1. Remove the four terminal cover screws.
2. Grasp the rubber tab at the bottom of the terminal
access cover.
3. Pull the tab outward and upward to remove the
terminal access cover.
Table 3: Terminal Blocks
Terminal Terminal Block Function
Block Label
TB1 Input Line Voltage Power
TB2
Output Line Voltage Power to Fan
Motor
TB3 Low-voltage Input Signals,
0-5 VDC Power Supply
TB4
Alarm Output for User-Installed
Alarm Device
* See Adjusting the Control Settings.
Input Device Selection

Electrical Rating

See Technical
Specifications.
0-5 VDC or 0-10 VDC
100 mA at 24 VAC/30 VDC
VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin
Jumper Blocks for
AC
Input
Power
Device
Input
TB1
TB3
1 2 3 4 L3 L2 L1 T1 T2 T3
J7 J8
Connection Terminals
Route wiring from input devices
through this conduit entry hole.
Figure 5: Jumper Block, Terminal Block, and
Potentiometer Locations
Terminal
L1
L2
L3
T1
T2
T3
1
2
3
4
1
2
Jumper
Blocks
for
Circuit
Adjusting
Output
Board
VFD66
to
(cropped
Control
Fan view)
Motor
J5 J6 J2 J3 J4 J9
TB2
Conduit
Entry
Bracket
P1 P2
Ground
Potentiometers
Terminal Function
Line 1 Input
Line 2 Input
Line 3 Input
Line 1 Output
Line 2 Output
Line 3 Output
5 VDC power supply
First signal input
Second signal input*
Common
Switch contact
Switch contact
5