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FPC-8057 User’s Manual
2.2.1 Power Requirements
The FPC-8057 can be powered by DC power only. The
specified voltage range is +21 to 25 Volts DC. This
insures compatibility with most controller DC systems. The
power conditioning circuitry inside the unit is accomplished
by a switching power supply. The peak starting current can
be as high as 700mA.
Power
If the display does not come on within 2 seconds of
power up, remove power. An internal fuse will prevent
damage if the polarity of the DC power is incorrect. Check
wiring to insure proper connections and try to power up
again.
Fusing
Requirements
An Internal fuse will prevent damage for over voltage
condition however it isn’t guaranteed.
DC voltage sources should provide proper isolation from
main AC power and similar hazards.
Caution
High Voltage
A Hard-wired EMERGENCY STOP should be fitted in
any system using a FPC-8057 to comply with ICS
Safety Recommendations.
Do not power the FPC-8057 and inductive DC loads, or
input circuitry to the controller, with the same power
supply. Note: The 24 VDC output from some controllers
may not have enough current to power the FPC-8057
Caution
Emergency
Stop
Caution
Supply Voltage
Condition
Wire lengths should be minimized (Maximum 1600’ (500
m) shielded, 1000’ (300 m) unshielded).
Wires should be run in pairs with a neutral or
Caution
Wire Routing
Installation Instructions 9