Supply Voltage Condition
Do not power the
UNIPLAY
and inductive d.c. loads, or input circuitry to the controller, with the same
power supply.
The 24 Vd.c. output from some controllers may not have enough current to power the
UNIPLAY
.
Wire Routing
Wire lengths should be minimized (Maximum length :500m shielded, 300m unshielded).
Wires should be run in pairs with a neutral or common paired with a signal line.
If wiring is to be exposed to lightning or surges, use appropriate surge suppression devices.
Keep a.c., high energy, and rapidly switching d.c. wiring separate from the 3 signal wires.
Fit ungrounded d.c. supplies with a resistor and capacitor in parallel to earth ground. This provides a path
for static and high frequency dissipation. Typical values to use are 1M
Ω
and 4700pF.
To prevent the
UNIPLAY
from becoming damaged or having noise output issues, after turning
the device off, please wait 10 seconds before turning the device on again.
Connection
To make a connection, strip about 10mm of insulation off the end of the wire, turn the
connector screw counterclockwise until the gap is wide open, insert the wire all the
way in, and turn the screw clockwise until tight. Connect positive d.c. line to the +24V
terminal and the d.c. ground to the 0V terminal.
Grounding Requirements
A CHASSIS GROUND MUST BE USED.
The d.c. ground is not directly coupled to Earth ground internally. It is not advisable to ground the d.c.
negative return to chassis ground as poor site earthing can introduce noise into a system, but if necessary
an earth connection should be made, from the power supply return point to the central star earth point.
Ground conductors should be as short and as wide in size as possible. The conductors must always be large
enough to carry the maximum short circuit current of the path being considered. Ground conductors should
be connected to a tree from a central star earth ground point. This ensures that no ground conductor
carries current from any other branch.
CE Requirements
To make an
UNIPLAY
comply with EMC directives, and to reduce susceptibility to electrical interference, a
separate #14 AWG ground wire should be taken to the chassis ground terminal of the power connector. This
ground connection should be run directly to the central star earth connection point.
GND
+24v
