Limitless™
WDRR Receiver
Issue 1,
50063987
Honeywell Sensing and Control 15
6.3
Power Supply connections
Refer to Figure 2.
The Limitless™ WDRR Series has two (2) cage clamp screw terminals on the housing’s
bottom right. A regulated voltage supply of 10 Vdc to 28 Vdc needs to be connected to the power supply
terminals identified as “+”
and “-”
.
NOTICE
The measured voltage across the output “-” terminal
and the output “+” terminal
is
nominally 1.5 Vdc less than the voltage supplied.
6.4
NPN or PNP output connections
Refer to Figure 2.
The WDRR Series Receiver is supplied with fourteen (14) configurable NPN/PNP type
outputs intended to be used with a customer provided PLC. A specific output will change when one or more
of the Limitless™ input(s) changes. The customer has the option of connecting the outputs for use as: NPN-
type current sinking or totem pole (current sinking); PNP-type current sourcing or totem pole (current
sourcing). See Section 1.3 for proper settings of the DIP switches. The connections to the customer’s PLC
would be as follows for each:
NPN-type: Current Sinking or Totem Pole (current sinking) output connecting to a PLC sourcing
input
- Connect NPN-type terminal
to PLC sourcing input
- Connect Output “+” terminal
to PLC common
- No connection to Output “-” terminal
PNP-type: Current Sourcing or Totem Pole (current sourcing) output connecting
to a
PLC sinking
input
- Connect PNP-type terminal
to PLC sinking input
- Connect Output “-” terminal
to PLC common
- No connection to Output “+” terminal
CAUTION
Do not apply direct power (supply voltage “+” or “-”) to the “-” terminal
or “+” terminal
or any
of the NPN/PNP type output terminals
as damage could occur to the WDRR electronics.
