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Atlas Polar - Model MP Line -Single-Phase Motor
Automatic 4-speed regulation for 230V single-phase fans using a transformer system complete with power unit, self-transformer unit, single automatic output protection and microcomputer control module.
MP regulators mount a microcomputer module HP37 (/37 models) or HP38 (/38 models) and come together with a temperature probe.
There is an optional cooling and min/max temperature alarm control (HPAL, only for /38 models) provided separately in DIN guide module format for external application.
It is not possible to mount other optionals on this line.
Up to a total load of 25A, the supply is 230V single phase (MP models). Above this load, it is 400V three phase + neutral (MPT models).
Models in which the power unit of the transformer requires increased aeration are supplied in a twin-compartment metal box.
The top part containing the power transformers is finned (IP22) and the lower part containing the microcomputer control module and electrical components is sealed (IP54).
Command modules
HMAN: This is mounted on /MA modules and allows
HP37: This is mounted on /37 modules and allows automatic 4-speed + stop fan operation and heating control.
It is also used to program the fan`s start-up speed to facilitate opening of the fan air lock.
The proportional ventilation range and heating parameters can be programmed in an internal register.
This is the simplest and most economical model for systems with ventilation and heating only.
HP38: This is mounted on /38 modules and allows automatic 4-speed + stop fan operation and heating control with the possibility of activating the cooling system and alarm (HPAL slot optional).
This is also used to partialize fan operation to get a minimum air exchange by timing the minimum speed, as well as fan`s start-up speed programming to facilitate opening of the fan air lock.