IBC control MicroMax750 User manual

IBC
control
MANUAL
CONTROL UNIT FOR ROTARY HEAT EXCHANGER
MicroMax750
Article no. F21075301
Set of EMC-glands as an option
With adjustable boost function and threshold value
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Since 1983Since 1983
Ska vara 25 mm i diameter på höjden

Installation instructions 2
Mounting 2
Safety instructions 3
Manufacturer´s declaration
Declaration of conformity 4
Description 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 control unit 11
Putting the equipment into
operation 11
EMC installation 12
EMC gland 12
Personal notes 13
TABLE OF CONTENTS

Warning indication e control unit must be in perfect technical condition
before use.
Damage that can aect safety must be remedied
immediately.
Maintenance/Repairs e function of the control unit should be checked
regularly.
Troubleshooting and repairs may only be performed by
trained personnel.
Electrical safety regulations must be met.
Disposal and
recycling When replacing components or when the control unit in
its entirety need replacing, please follow the advice below:
e aim should always be maximum possible recycling
of raw materials, with minimum possible environmental
impact.
Never dispose of electrical components with ordinary
waste, always use the designated collection points.
Disposal should be as environment-friendly as the
technology allows in terms of environmental protection
and recycling.
INSTALLATION INSTRUCTIONS
MOUNTING
2
Installations hole 5 ø
Installations hole 5 ø

SAFETY INSTRUCTIONS
“Safety instructions” refers to instructions whose specic
intent is to avoid the risk of personal injury and to prevent
damage to equipment.
Danger! Electrical current to electrical components!
Note: Switch o main power 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 residual voltage even aer
the main current has been switched o.
e following symbols and references will be used in this description. ese
important instructions apply to personal protection and technical safety during
operation.
3

4
MANUFACTURER´S DECLARATION
DECLARATION OF CONFORMITY
Manufacturer IBC control AB
Brännerigatan 5 A
SE-263 37 Höganäs
Sweden
Tel: [phone]
Product Control unit for rotary heat exchanger
Type designation MicroMax750
Applicable
EU Directives
EMC Directive 2014/30/EU
Low Voltage Directive 2014/35/EU
RoHS Directive 2011/65/EU including Delegated Directive EU2015/863
Applicable
UK Directives
e Electromagnetic Compatibility Regulations 2016
e Electrical Equipment (Safety) Regulations 2016
e Restriction of the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment Regulations 2012
Harmonizing
standards for
EU/UK Directives
BS EN 61800-3:2004/A1:2012 - Emission kategori C1, Immunitet second
environment
BS EN 61800-5-1:2007/A1:2017 - e control unit is intended for installation
in environments with a pollution rating of 2 (Pollution degree 2)
is declaration of conformity is issued under the full responsibility of the
manufacturer
Höganäs 2021-09-01
IBC control AB
Christer Persson
MD

• e MicroMax750 is part of a range of control units adapted, with the necessary
additional functions, for optimum control of rotary heat exchangers.
e series consists of ve sizes, MicroMax, MicroMax180, MicroMax370,
MicroMax750 and MicroMax1500.
All of the control units drive three-phase asynchronous motors with associated
gearing, the control unit designation denotes motor output. All control units
have an input signal of 0-10 V.
• MicroMax750 is designed for rotors up to 5000 mm with a rotor speed of
max 12 rpm.
If a faster rotor speed is necessary, rotor diameter should be reduced.
• Heat exchanger rpm and thus thermal eciency are governed by the control unit
so that rotor speed is proportional to the input signal from the control centre.
• MicroMax750 a adjustable threshold value of 0-2 V.
• MicroMax750 has adjustable boost function.
• MicroMax750 has a rotation monitor (magnet mounted on the rotor with
associated magnetic sensor) and built-in cleaning function.
e functions can be disconnected via DIP switches.
• MicroMax750 starts automatically following voltage
drop-out and resets all alarms on restart.
• e motor should not be disconnected from the control unit while under load.
DESCRIPTION OF FUNCTIONS
5

Ambient temperature,
non condensing
-25 - +45 OC
Protection form IP54
Weight 1.2 kg
Dimensions, HxWxD 223x165x60 mm
Connection voltage 1x230-240 V +/-15 %
50/60 Hz
Power input, max. 1100 W
Input current, max. 5 A
External 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**) 6.3 AT
Acceleration time
Retardation time
(Fixed) 30 sec
(Fixed) 60 sec
* Exact value cannot be obtained with a digital measuring
instrument
** e fuse protects both motor and electronics
TECHNICAL DATA
FUNCTIONS
6

DIP SWITCH
Cleaning function Cleaning function connected in ON position.
When the rotor has stopped for 30 minutes, the cleaning function is acti-
vated and the rotor rotates at minimum rpm for 10 seconds.
Rotation monitor Rotation monitor set to ON position.
High speed*) e rotor rotates at the set maximum rpm when the switch is set to ON.
Aer a test run, make sure the DIP switch is set to OFF.
Low speed*) e rotor rotates at the xed minimum rpm when the switch is set to ON.
Aer a test run, make sure the DIP switch is set to OFF.
*) Manual operation (test mode)
OPERATIONAL INDICATIONS
On/alarm Lit with xed light
It ashes when the control unit has tripped.
Run Comes on when the motor is to rotate, i.e. when the input signal exceeds
the threshold value.
Rotation Flashes when the magnet passes the magnetic sensor, regardless of the
“Rotation monitor” DIP switch setting.
Flashes even if the input signal is lower than the threshold value.
7

Rotation monitor
Probable fault cause on
installation
Probable fault cause in
operation
Alarms and trips if a pulse is not received every 5 minutes.
- Magnet turned the wrong way
- Rotation monitor incorrectly connected (wrong polarity),
refer to “Connections” on page 10
- Too wide a gap between the magnetic sensor and magnet, max 15 mm
-Broken belt
- Belt slipping
- Stuck rotor
- Magnetic sensor or magnet not intact
Overtemperature motor
Probable fault cause
Alarms and trips if motor winding temperature is too high.
e thermal contact in 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 and trips if the connection voltage drops below 195 V
for more than 4-5 seconds.
Short circuit/overcurrent
Probable fault cause
Alarms and trips in the event of a phase-to-phase or phase-to-earth
short circuit and overcurrent.
Short circuit phase-phase orphase-earth (earth fault)
MicroMax750 trips immediately.
- Motor winding fault
Measure motor resistance, it should be identical on all phases.
- Short circuit between phases in the cable
- Earth fault in the motor or cable
ALARMS
All alarms remain in state.
Continued on next page
8

Continued from previous page
Probable fault cause
Overcurrent
MicroMax750 limits the current at 7 A and trips then aer 4-5 s.
- e motor is too small in relation to rotor diameter
- Rotor rotation sluggish
- Damaged motor, e.g. bearing fault
Measure current.
NOTE! Precise voltages and amperages can only be obtained with a
moving-iron instrument.
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SETTINGS VIA POTENTIOMETER
Boost Torque boost at low rpm.
May be increased if necessary, but motor temperature will increase.
Factory setting at 9 o’clock.
reshold value e control unit will start when the input signal exceeds the threshold
value, adjustable between 0-2 V.
Factory setting, min.
Max rpm Potentiometer for adjusting maximum rpm.
Adjust between 40-100 Hz.
Factory setting, min.
RESET
Reset Reset button for resetting the control unit.
e control unit also resets in the event of voltage drop-out.
In both cases, all alarms reset.
Automatic restart takes place aer a voltage drop-out.
9

CONNECTIONS
Switch o power before starting work on the equipment.
Recommended tightening torque on terminals 0.5 Nm, max tightening torque 0.8 Nm.
Connection voltage
(L-N-PE)
1x230-240 V +/-15 %, 50/60 Hz.
NOTE! Protective earth must always be connected.
Motor
(U-V-W)
ree-phase asynchronous motor wired for 3x230 V (Delta).
Max 750 W.
Direction of rotation is changed by switching two of the phases.
ermal contact
(T-T)
e thermal contact in the motor should be used to protect the motor
from 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 speed
(A1-A2)
Provides set max rpm when closed, regardless of input signal value.
Input signal
(2-3)
0-10 V.
Plus connected to terminal 2, minus to terminal 3.
Rotation monitor
(9-10)
White cable connected to terminal 9, brown to terminal 10.
e magnet is installed with south side (S) towards the sensor.
Max. gap 15 mm.
CONNECTION DIAGRAM
10
Manual
speed
T T 2 3
+
0-10 V
9 10
Rotation
monitor
3~
L N U V W
M
1x230 V 3x230 V Thermal
contact
13 14 15
Alarm
reay
A1 A2
w
S
br
1 2 3 4 5
(Max 2 A / 250 V AC)

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).
Aer 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.
e minimum rpm is preset.
Aer a test run, set the DIP switch to OFF.
Checking the
cleaning function
Switch o 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
e yellow “Rotation” LED will ash 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

Rotation monitor, LiYCY 2x0.34
Shielded
Input signal, LiYCY 2x0.34/0.5
Shielded
EMC INSTALLATION
EMC GLAND
Motor
Ölex Classic 110 CY/7G0.75
Shielded
Connection voltage 3G1.5
Not shielded
EMC glands must be used for shielded cables.
e above cables or equivalent must be used to comply with the EMC Directive.
NOTE!
When connecting the shield to the EMC gland, it is important to do so as shown above.
12

PERSONAL NOTES
13

IBC control AB
Brännerigatan 5 A
SE-263 37 Höganäs
Sweden
Tel. [phone]
www.ibccontrol.se
[email protected]
IBCcontrol
F21075902GB Version 1.0.1 2021-10-01