IBC control MicroMax180, Manual, Page: 87 / 192

• The MicroMax370 is part of a range of control units adapted, with the necessary
additional functions, for optimum control of rotating heat exchangers. The series consists
of four sizes, MicroMax, MicroMax180, MicroMax370 and MicroMax750. All of the
control units drive three-phase induction motors with associated gearing; the control unit
designation denotes motor output. All control units have an input signal of 0-10 V.
• MicroMax370 is designed for wheels up to 3500 mm with a wheel speed of max 12 rpm.
If a faster wheel speed is necessary (15-25 rpm), wheel diameter should be reduced.
• Heat exchanger rpm and thus thermal efficiency are governed by the control unit so that
wheel speed is proportional to the input signal from the control centre.
• MicroMax370 has a preset threshold value of 0.1 V (hysteresis 0.13–0.07 V). If the input
signal falls below this value, the wheel will stop.
• MicroMax370 has a rotation monitor (magnet mounted on the wheel with associated
magnetic sensor) and built-in cleaning function.
The functions can be disconnected via DIP switches.
• MicroMax370 starts automatically following voltage drop-out, and resets all alarms on
restart.
• The motor should not be disconnected from the control unit while under load.
DESCRIPTION OF FUNCTIONS
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