CiDRA SMART HATCH, Installation & Operation Manual

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21798-01-EN Rev. 04 Page 25
4.8.3
Advanced Receiver Connections
Receiver connections: ANA1, ANA2, ANA3, DIGITIAL1, DIGITAL2, and 485
have been designed to operate while maintaining safety rated conditions.
•
ANA1 Hi/LO is a current input.
•
ANA2 HI/LO is a differential voltage input (a resistor is needed external to
the box to sense current).
•
ANA3 HI/LO can either be one differential voltage input or 2 digital I/Os
(individually configurable as digital inputs or digital outputs).
•
DIGITAL1 and DIGITAL2 are digital I/Os (individually configurable as
digital inputs or digital outputs).
Note: Digital I/Os default to inputs. When configured as outputs, they are
switches to ground thru a 100-ohm resistor (so the states are either open or
“ground”).
For Analog Current Inputs: the max rated current is +100mA
For Analog Voltage inputs: the max rated differential voltage (HI to LO) is
+12.5V
For the Digital Inputs:
•
Logic ‘0’ is or any voltage between 0V and 2V (switch closure to GND).
•
Logic ‘1’ is and open input or any voltage between 3V and 30V.
For the Digital Outputs:
•
Logic ‘0’ is 100 Ohms to GND with the max allowed current sink is 25mA
•
Logic ‘1’ is an open circuit with the max voltage range of 0V to 30V.
4.8.3.1 Install Hydraulic Pressure Sensor (Optional Equipment)
Refer to Figure 19 Advanced Receiver Wiring Diagram:
The Hydraulic Pressure Sensor is an advanced feature option that requires Receiver
Module CiDRA P/N:21718-0003 and Receiver Cable CiDRA P/N:21828-02.
For Hydraulic Pressure (HP) installation procedure see listed steps below.
•
Make sure Drum is not rotating, and hydraulic pressure (HP) is de-
energized (Existing analog HP Gauge is reading 0 PSI).
•
Disconnect existing female fitting from either the Pump end or Gauge end
of the Hydraulic line. (Figure 20 shows the HP installed at the Pump end.)
•
Connect CiDRA supplied fitting (or equivalent) in between the
disconnected section of hydraulic hose.
•
Securely tighten all fittings.