M60-1PLow voltage motor intelligent protector

1、 Overview:2、 Main features
　　M60-1PAdopting advanced microcomputer technology and high-performance integrated chips, the whole machine has powerful functions and superior performance. High testing accuracy, good linearity, high resolution, strong anti-interference ability of the whole machine, and reliable protection action. The three-phase current value, voltage value, and various fault codes are displayed on the LED in a clear and intuitive manner. Good stability, no maintenance required for long-term work.
　　M60-1PUsing E2PROM storage technology to achieve parameter setting, the set parameters are still saved after power failure and do not need to be set again. One machine is versatile and can replace traditional current transformers, ammeters, voltmeters, thermal relays, and time relays. Equipped with RS485 serial digital interface, it facilitates digital communication with the upper computer (PC).Low voltage motor intelligent protectorLow voltage motor intelligent protector

3、 Main functions
Protection function: Short circuit, locked rotor, overcurrent, three-phase current imbalance, phase failure, overvoltage, undervoltage, leakage, undercurrent and other fault protection.
Setting function: The intelligent model has setting keys, data keys, and shift keys. When the setting exceeds the range, it will remind the user to reset to avoid misoperation. The basic type is set by dialing or potential electrical appliances.
Alarm function: When the motor overcurrent light flashes an alarm, the larger the overcurrent multiple, the faster the flashing, or an external alarm can be used with the contact of the protector

Display function: After the protector is powered on, press the setting button to display the overall current value, and press the data button to display the three-phase current value. After startup, the fault code is displayed and the corresponding fault indicator light is on, which is clear at a glance.
Communication function: Information transmission is achieved through a serial digital interface. One upper computer (PC) can be connected to 256 protectors and can set parameters, start and stop operations for each motor, facilitating automated management.
4、 Protection function
Startup protection: During the startup time, only protection is provided for phase failure, overvoltage, undervoltage, short circuit, and three-phase current imbalance.
Overvoltage protection: When the working voltage is higher than 15% of the working voltage, the action time is ≤ 6 seconds.
Phase failure protection: When any phase is disconnected, the action time is ≤ 2.0 seconds.
Locking protection: When the working current reaches 3-8 times the set current, the action time is ≤ 2 seconds.
Short circuit protection: When the working current reaches more than 8 times the set current, the action time is ≤ 2 seconds.
Unbalance protection: When the difference in current values between any two phases is ≥ 60%, the action time is ≤ 2 seconds.
Undercurrent protection: When the operating current continuously falls below the set undercurrent threshold, the action time is ≤ 10 seconds.
Overcurrent protection: The overcurrent protection action time is inverse time protection, and (Figure 2) the action time can be set according to user needs.
Self start function: Protectors with this function require the user to set a self start time, at which point the motor cannot start in communication.
Contact capacity: AC220V/* * AC308V/3A Electrical life ≥ 105 times
Contact characteristics: Contact J1 is normally open and normally closed, and contact J2 is normally open. If special orders are required for production. (Based on the wiring diagram of the casing)
Communication interface: RS485 serial digital interface, communication distance ≤ 1200 meters