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CLASSIC
®
800 Product Manual
Installation Guidelines
•
Input Power Connections
The CLASSIC 800 will accept 12-24 VDC or 115-230 VAC input power via the universal power supply by
wiring the Electronics Module according to input power available.
•
For AC power, connect the HOT line to VAC-H, the NEUTRAL to VAC-N and the GROUND wire to
the green grounding screw in the enclosure, also indicated by the ground symbol.
•
For DC Power, connect the positive voltage to +VDC and the common or negative to COM. (see
Figure 15 & 16)
•
Wiring the Relay Contact(s)
•
The CLASSIC 800 features two (2) fully sealed independent relays, which may be wired for
Normally Closed (NC) or Normally Open (NO) operation. Relay 1/Relay 2 are connected as
shown in Figure 15.
•
Wiring the 4-20 mA Analog Output
•
The CLASSIC 800 features a fully isolated 4-20 mA Analog Output, which can be wired in a 3-Wire
or 4-Wire confi guration as shown in Figures 15 & 16.
•
Wiring RS-485 Interface
The RS-485 remote communications port is connected as follows:
485
(C)
The common ground reference used on some 3-wire half-duplex systems. While no
current should pass through this conductor, it should not be used as a shield. If using
a shield it should only be connected to ground at one point, usually at the PLC or
computer.
485
(A-)
The A or negative data line.
485
(B+)
The B or positive data line.
485
(T)
This pin provides an AC coupled terminator of 120 ohms when shorted to 485 (A-). This
feature eliminates the need to add an external terminator. It is AC coupled to reduce
power consumption when the 485 bus is idle. For more details on AC vs. DC termination
of RS-485 networks, contact Kayden Technical Support at kayden.com.
Notes:
For more information see Figures 15 & 16.
Figure 14 - Disconnecting Sensor Connector from the Electronics Module
Locking Tab
Push Down
Pull Connector (NOT Wires)
