User's Manual

302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 5 of 37
1. INTRODUCTION
The “PD230 Enhanced Two Channel Inductive Loop Vehicle Detector” is a dual
channel microprocessor based detector designed specifically for parking and vehicle access control
applications. The PD230 Enhanced detector has been designed using the latest technology in order
to meet the requirements of a vast number of parking applications in terms of operating conditions.
A number of internal functional options are available to the user.
The primary function of the detector is to detect vehicle presence by means of an inductance
change caused by the vehicle passing over a wire loop buried under the road surface.
The detector has been designed around the popular PD130 series of single channel detectors for
ease of installation and convenience. The various modes are selected by changing the position of
switches on the front of the unit.
The detector oscillator is multiplexed to eliminate any possibility of crosstalk between the loops
connected to the detector.
The switches allow for different loop frequency settings, sensitivity settings and mode settings.
The unit has a number of internally selectable options for configuration of the relay outputs.
The PD230 Enhanced 2 Channel Vehicle Detector provides visual outputs (LED) on the front of the
enclosure and relay change-over contacts at the 11 pin connector at the rear of the enclosure. The
power LED indicates that the unit has been powered. The channel status LED’s below indicate that
a vehicle is present over the loop and when there is a fault on the loop. The Presence relays are
normally fail-safe and will close on a vehicle detect, loop failure or in the event of a power failure.
Available is an additional Power-fail function which enables a short (of up to ten minutes) power-fail,
to have no effect on the operation of the detector when power is restored. The detector will revert to
the same state as prior to power failure, when power is restored.
For additional information refer to the following documents:
Data Sheet - PD230 Enhanced 2 Ch Vehicle Detector Document No. 302DS0002
Installation Leaflet Document No. 879LF0006
Diagnostic Unit DU100 User Manual Document No. 895UM0001
2/4 Ch Vehicle Detector Installation Guide Document No. 879LF0006