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Check that

the control unit is connected as per instructions on page 10.
Connection voltage 230-240 V +/-15%, 50/60 Hz.

Check that

the motor is wired for 3x230 V. If there is an operating switch between the 
motor and the control unit, the motor thermal contact should be 
connected via the auxiliary terminal in the operating switch.

Check that

the input signal is 0-10 V

.

Check that

the cleaning function and rotation monitor DIP switch are set to ON.

PUTTING THE EQUIPMENT INTO OPERATION

 

Should be done in sequence. 

Check that

the motor rotates in the right direction in relation to the rotor's direction 
of rotation. In the event of a fault, switch two phases to the motor.

Adjustment of  
maximum rpm

Set the “High Speed” DIP switch to the ON position. 
Adjust "Max. rpm" so that the rotor rotates at 10-12 rpm  
(or as per directions from rotor manufacturer).
After a test run, set the DIP switch to OFF.

Checking 
minimum rpm

Set the “Low Speed” DIP switch to ON. 
Check that the rotor starts. 
The minimum rpm is preset. 
After a test run, set the DIP switch to OFF.

Checking the  
cleaning function

Switch off the voltage.
Make sure the “Cleaning function” DIP switch is set to ON and the input 
signal is disconnected. When power is switched on, the rotor will rotate at 
minimum rpm for 10 seconds.

Checking the  
rotation monitor

The yellow “Rotation” LED will flash when the magnet passes the 
magnetic sensor, regardless of DIP switch position.

Finish by

having the control unit drive the rotor at maximum and minimum  
rpm and checking that the rotor speed is correct. 

CHECKS BEFORE POWERING UP THE CONTROL UNIT   

11

Summary of Contents for MicroMax750

Page 1: ...L UNIT FOR ROTARY HEAT EXCHANGER MicroMax750 Article no F21075301 Set of EMC glands as an option With adjustable boost function and threshold value M ade in S w ed en Since 1983 Since 1983 Ska vara 25...

Page 2: ......

Page 3: ...on of functions 5 Technical data 6 Functions 6 DIP switch 7 Operational indications 7 Alarms 8 9 Settings via potentiometer 9 Reset 9 Connection diagram 10 Connections 10 Checks before powering up the...

Page 4: ...sal and recycling When replacing components or when the control unit in its entirety need replacing please follow the advice below The aim should always be maximum possible recycling of raw materials...

Page 5: ...ower before removing the cover Never touch electrical components or contacts while main current is switched on Risk of electric shock resulting in serious injury or death Connected terminals contain r...

Page 6: ...magnetic Compatibility Regulations 2016 The Electrical Equipment Safety Regulations 2016 The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2...

Page 7: ...12 rpm If a faster rotor speed is necessary rotor diameter should be reduced Heat exchanger rpm and thus thermal efficiency are governed by the control unit so that rotor speed is proportional to the...

Page 8: ...fuse max 10 A Output voltage 3x0 230 V Output frequency 5 100 Hz Min frequency Fixed 5 Hz Max frequency 40 100 Hz Motor output max 750 W Motor current 3 6 A Overload 2 min 30 min 5 3 A Internal fuse...

Page 9: ...DIP switch is set to OFF Low speed The rotor rotates at the fixed minimum rpm when the switch is set to ON After a test run make sure the DIP switch is set to OFF Manual operation test mode OPERATIONA...

Page 10: ...the motor reverts to normal mode when the temperature drops See Overcurrent on page 9 Overvoltage Alarms and trips if the connection voltage exceeds 276 V for more than 4 5 seconds Undervoltage Alarms...

Page 11: ...R Boost Torque boost at low rpm May be increased if necessary but motor temperature will increase Factory setting at 9 o clock Threshold value The control unit will start when the input signal exceeds...

Page 12: ...overheating Must be jumped if the temperature switch is not connected Alarm relay 13 14 15 Closes between 14 15 in the event of an alarm or voltage drop out Max 2 A resistive load 250 V AC Manual spee...

Page 13: ...rpm Set the High Speed DIP switch to the ON position Adjust Max rpm so that the rotor rotates at 10 12 rpm or as per directions from rotor manufacturer After a test run set the DIP switch to OFF Check...

Page 14: ...GLAND Motor lflex Classic 110 CY 7G0 75 Shielded Connection voltage 3G1 5 Not shielded EMC glands must be used for shielded cables The above cables or equivalent must be used to comply with the EMC Di...

Page 15: ...PERSONAL NOTES 13...

Page 16: ...IBC control AB Br nnerigatan 5 A SE 263 37 H gan s Sweden Tel 46 42 33 00 10 www ibccontrol se info ibccontrol se IBCcontrol F21075902GB Version 1 0 1 2021 10 01...

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