VFD68 Variable Frequency Drives (575 VAC)
18
B
Relay Output (N.C.)
During normal operation, relay contacts B and C are connected (maximum alarm
load: 230 VAC, 0.3 A or 30 VDC, 0.3 A).
C
Relay Output (C)
Relay output common
10
+5 V
+5 VDC Supply for P499R Transducers (15 mA maximum)
2
Analog Input
Analog Input 1 (AI1) accepts 0
–
5 V or 0
–
10 V DC analog input signals
5
Analog Common
Common for analog inputs
4
Analog Input
Analog Input 2 (AI2) accepts 4
–
20 mA analog input signals
SD
Common
Common for contact inputs (when using Sink logic - default setting).
STF
Contact Input
Forward rotation. Must connect STF to SD terminal (common) using the
factory-supplied jumper to allow the VFD to rotate in a forward direction.
STR
Contact Input
Reverse rotation (not used)
SD
Common
Common for contact inputs (when using Sink logic - default setting).
1.
Gray cells indicate a terminal that is typically not used in condenser fan speed control applications.
Table 12:
VFD68Dxx Drives Low-Voltage Connection Information for the High Input Signal
Select Board
Terminal
Label
Signal Type
Description
5V
+5V
+5 VDC Supply for P499R Transducers (15 mA maximum)
IN1
Analog Input
Analog Input 1 for 0.5 to 4.5 V Ratiometric High Signal Select
GND
Analog Common
Common for analog inputs
5V
+5V
+5 VDC Supply for P499R Transducers (15 mA maximum)
IN2
Analog Input
Analog Input 2 for 0.5 to 4.5 V Ratiometric High Signal Select
GND
Analog Common
Common for analog inputs
Table 11: VFD68Dxx Drives Low-Voltage Connection Information for the Primary Board (Part 2 of 2)
Terminal
Label
1
Signal Type
Description
