Emerson Control Techniques Focus 3N User Manual page 24

Focus 3 Option Kits
Input Power:
Control Relay (CRR):
Isolation Voltage:
Inputs:
Voltage Ranges:
Current Ranges:
Speed Pot:
Output:
Page 18
AC Tachometer Input Board – P/N F3ACT
T his option kit allows the Focus 3 to accept AC
t achometer feedback. It mounts directly to the focus
p c board and accommodates a range from 45 to
1 10vac at maximum speed.
Signal Isolat r Bo o
Th is option is used in applications where isolation is
re quired between an external control signal and the
m otor controller (which may or may not be at earth
gr ound potential). It can be utilized to isolate a variety
of voltage or current signals (see specifications below).
It may also be used simply to isolate the speed
ad justment pot, and the pot power supply is included.
Th is option can be mounted in the enclosure or in a
pi ece of plastic track (included with kit).
Specifications:
17- 30 Vdc @ 50mA Max.
24 Vdc @ 12.1 mA (JP5 = 24 Vdc)
120 Vac @ 20 mA (JP5 = 120 Vac)
Contact Type/Rating – 2 Form A / 1A @ 250 Vac
240 Vac Power Systems
2000 Vac Hi-Pot for 1 Minute
5,12,26,52,98 & 208 Vdc, 180 Ohms/v
0-5 mA, 1-5 mA, 910 Ohms input impedance
0-20 mA, 4-20 mA, 250 Ohms input impedance
5Kohms, 2W (Includes +10 Vdc power supply for potentiometer)
0 to +10 Vdc (Uni-polar)
ard – P/N F3NSBD
(for control circuitry)
olt