OUT69 Y is microcontroller-based and has been developed specifically for screw compressors. It monitors the following parameters: motor winding temperature, phase sequence, and phase failure.

Matches with PTC sensor and available for all kinds of motor which needed protection.

• After the supply voltage has been connected, a three-second initialization period follows. Provided the PTC chain resistance is below the reset threshold (2.75K), the relay trips after these 3 seconds have expired.
• Up to nine PTCs with different nominal response temperature may be connected serially to the PTC input.
• If one or more PTCS become highly resistive, the relay switches off. After cooling down below the reset threshold, a 5-minute delay period begins. When this period has expired, the relay trips again, provided all PTCs are below the reset threshold. If a second PTC error is detected within 24 hours of the first, the delay period is 60 minutes. If a third PTC error occurs within the 24-hour period, the relay switches off and locks.
• The monitoring of the three-phase motor voltage becomes active 1 second after the motor has started, for a duration of 10 seconds. In case of a wrong phase sequence or a phase failure, the relay switches off and locks.
• The lock-out and delay may be lifted by cycling the power off for qpprox.5 seconds.
• After the compressor has switched off, the voltage monitoring is enabled only after a delay period of qpprox.20 seconds, in order to prevent unwanted shut down caused by the compressor rotating backwards for a short time.
• A dual LED (red/green) provides additional information about the motor protector and the compressor status (e.g., for diagnostic purposes).
• The OUT69 Y is not suitable for use with frequency converters.

LED display

-Green led ON: normal

-Red flases: error