Schneider Electric ATV312HU40M3

The variable speed drive for asynchronous motors unit, ATV312HU40M3, is manufactured by Schneider Electric for the Altivar 312 line of speed drives. These products are manufactured in France and are designed for Material handling, packaging, and textile machines usage. They come with a 2-year warranty from MRO Electric. We also carry AC Drives from other manufacturers such as Modicon and ABB.

Basic functions

What are the drive thermal protection functions? The thermal protection function by the PTC probe that is set up on the heatsink. Thermal protection by the PTC can be integrated into the power module. The drive has indirect thermal protection against overloads by tripping when an overcurrent occurs. The typical tripping values are as follows: Motor current = 185% of nominal drive current: 2 seconds - Motor current = 150% of nominal drive current: 60 seconds

Drive ventilation

A fan starts up when the drive is powered up. If a run command has not been received within 10 seconds, the fan will shut down. Automatic power is sent to the fan on unlocking (direction of operation + reference). It is powered down a few seconds after the drive is locked (motor speed < 0.2 Hz and injection braking completed).

Motor thermal protection

The thermal protection function is found by calculating the I2t. The protection takes into consideration self-cooled motors.

Compatibility of functions

The ATV312HU40M3 employs logic and analog input application functions. Which functions can be assigned to one of the inputs? A single input can activate several functions at the same time. An example of this is reverse and 2nd ramp can activate at the same time. Be sure to check that the functions assigned are compatible. The [MONITORING] (SUP-) menu ([[LOGIC INPUT CONF.]] (LIA-) parameter and [[ANALOG INPUTS IMAGE]] (AIA-) parameter can be used to display the functions assigned to each input to check their compatibility.

Before you assign a reference, command, or function for the Schneider Electric ATV312HU40M3 to a logic or analog input, you must check that this input has not already been assigned within the factory settings. Also, make sure that no other input has been assigned to an incompatible or unwanted function.

Each assignment below lists the factory-set input assignments and the procedure for unassigning them.

Assigned input: LI2, Function: Run reverse, Code: rrS, to unassign, set to: nO.

Assigned input: LI3, Function: 2 preset speeds, Code: PS2, to unassign, set to nO.

Assigned input: LI4, Function: 4 preset speeds, Code: PS4, to unassign, set to nO.

Assigned input: AI1, Function: Reference 1, Code: Fr1, to unassign, set to Anything but AI1.

Assigned input: LI1, Function: Run forward, Code: tCC, to unassign, set to: 2C or 3C.

Assigned input: AI2, Function: Summing input 2, Code: SA2, to unassign, set to: nO. 

ATV312HU40M3 Advantages

Features 

Several functions can be assigned to inputs as well as outputs.

Analog/logic output

Motor current code, Motor frequency code, Motor torque code, Power supplied by the drive code, Drive detected fault (logic data) code, Drive running (logic data) code, Frequency threshold reached (logic data) code, High speed (HSP) reached (logic data) code, Current threshold reached (logic data) code, Frequency reference reached (logic data) code, Motor thermal threshold reached (logic data) code, Brake sequence (logic data) code.

Relay

Detected fault, Drive running, Frequency threshold reached, High speed (HSP) reached, Current threshold reached, Frequency reference reached, Motor thermal threshold reached, Brake sequence, Copy of the logic input.

How to use an ATV312HU40M3

The Schneider Electric ATV312HU40M3 is factory-set for the most common operating conditions.

The display indicates drive ready [Ready] (rdY) with the motor stopped, and motor frequency with the motor running.

The LI5 and LI6 and logic inputs, AI3 analog input, AOC analog output, and R2 relay are unaffected.

The display for stop mode when a fault is detected is a freewheel.

Contact Us Today For More Information About Schneider Electric Products

Check out the rest of our Schneider Electric product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like ATV312HU40M3, take a look at more from our AC Drives line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our ATV312HU40M3 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.