Display on TSX PSY supply modules
(Original Document)
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Introduction
Each supply module has a display panel containing:
Description
The following table describes the various LEDs and their functions:
Display LED
Description
OK LED (green)
  • on when operating normally,
  • off when the output voltage is below the thresholds.
BAT LED (red)
  • off when operating normally,
  • on if battery is missing, flat, the wrong way round or the wrong type.
24V LED (green)
  • on when operating,
  • off if the sensor 24V voltage delivered by the supply is no longer present.
RESET push-button
Pressing this button activates a sequence of service signals identical to:
  • a power outage, when pressed,
  • powering up, when released.
The application takes these actions (pressing and releasing) to mean a warm restart.
Sensor supply
The alternating current supply modules TSX PSY 2600/5500/8500 have a built-in power supply which delivers a voltage of 24VDC for supplying the sensors.
This sensor power supply can be accessed via the module’s screw connection terminal block.
CAUTION
UNEXPECTED EQUIPMENT OPERATION
Do not set the TSX PSY 2600/5500/8500 module in parallel with an external supply module.
Failure to follow these instructions can result in injury or equipment damage.
NOTE: The "24 VDC sensor supply module" output for the TSX PSY 8500 module is a VLSV-(very low safety voltage) type This ensures the user’s safety.