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User Manual:
Micha Solar
Power Generation Display Unit
www.micha-solar.com
1. Introduction
The Power Generation Display Unit is designed to display the power generated by any Power Generation system but is
usually used on a renewable energy generation site, e.g. Photovoltaic (PV) or Wind. For a PV system, PV panels would
typically be installed on a building and provide power directly to the mains grid via inverters. Energy meters provide pulses
to the Power Generation Display Unit to enable the energy generated to be counted and displayed.
The Power Generation Display Unit is available in two sizes as described in the following table:
Micha Part Number
Description
Graphic Size
101 820
Power Generation Display Unit
420mm wide x 300mm high (A3 Graphic Size)
101 640
Power Generation Display Unit
600mm wide x 500mm high
MF/2nd October 2012/Issue 7
Page 1 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
2. General Arrangement
The unit comprises a back-box which houses the Power Supply PCB, Control PCB and Display PCB Assemblies. The
back-box is covered with two sheets of clear acrylic (420 x 300mm or 600 x 500mm) which are designed to trap a fixed
graphic of the end users choice. The backlit LCD graphics display is visible through an aperture in the graphic. The sheets
of acrylic are held together by the surrounding bezel and M8 fixings.
605mm
4 x M8 DOME NUTS
REAR PERSPEX - WITH CUT-OUT FOR LCD GRAPHICS DISPLAY
FRONT PERSPEX - NO CUT-OUT
8 x M16 BLANKING PLUGS
4 x BACK BOX FIXINGS
POWER SUPPLY PCB
EARTH STUD
POWER GENERATION DISPLAY UNITPCB ASSEMBLY MDC 401 221
TB1
R1
LE D1
EARTH
P OW E R
TB2
TB3
0V
+5V
TB4
0V
+5V
NEUTRAL
LIVE
3
IC4
TP5
1
SW3
D3
R20
R21
R23
2
LE D3
3
TR3
IC5
TP6
LE D4
2
D4
R25
R26
R22
1
SW4
C10
X TAL1
C11
IC7
C12
IC8
SW6
RN 3
UP
MENU
3
IC6
TP7
RUN
PN: 401195 ISSUE
POWER GENERATION CONTROL PCB ASSEMBLY
1
J2
CO NTR A S T
LCD
GRAPHICS
DISPLAY
PCB
505mm
SW9
S W 10
J3
C4
SW7
SW8
SET
TR4
LCD RE D +V E
B A CK
LIGH T W HT -V E
C8
+
C6
C9
TESTED
R8
R13
R14
RN 2
R17
C13
CO UN TRY OF
OR IGIN : U.K. Micha
2
D2
R18
R19
R16
1
TR2
R3
R5
J1
C7
LE D2
RN 4
R2
R4
RN 1
C14
SERIAL NO.
TP4
R24
3
IC3
IC2
IC9
LE D1
SW2
TB4
TB5
LE D5
R10
D1
R11
R12
R15
2
TR1
TB3
P RO GR A M P OR T
J4
C3
+
TP2
P OW E R
SW1
TESTED
R6
TB6
C2
TP1
0V
1
SP NO CO M SP NO CO M SP NO CO M SP NO CO M
IN PU T 2
IN PU T 3
IN PU T 4
INPUT 1
BEZEL
TB2
SERIAL NO.
R27
TB1
+5V
POWER
P S U1
VR1
F1
SELECT
DOWN
CONTROL PCB
BACK BOX
4 HOLES FOR POSSIBLE
CABLE ENTRY
8 x REAR ACRYLIC FIXINGS
EXTERNAL SET-UP CONTROL UNIT
CONNECTOR
2.1. NOTE: LCD Display
When fully assembled, the LCD Display sits slightly proud of the metal back-box. For this reason the unit is
supplied in parts which are typically assembled at installation time. The LCD Display should not be fitted to the four
nylon pillars provided until the back-box has been fitted to the supporting wall – see section 3.4
MF/22nd July 2010/Issue 6
Page 2 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
3. Installation
3.1. Disassembly
Carefully remove the four M8 fixings in the four corners of the bezel and remove the bezel.. If this is an existing
installation, remove the tape which is applied to the edge of the two sheets of acrylic (this should be done carefully to
avoid dropping the front sheet of acrylic). Remove the front sheet of acrylic and any graphic that is installed.
Remove the eight M4 countersunk screws that hold the rear sheet of acrylic to the back box.
3.2. Installation of Back Box
Using the back box as a template, mark the position of the four mounting holes onto the desired location. Drill and
fit rawl plugs or other suitable fixings to hold the back box to the wall. Fix the back box to the wall.
The unit requires mains power and the signal for the energy meter. These cables may be brought into the enclosure
using the large holes on the back wall of the enclosure, or through any of the eight cable gland holes provided
(remove the blanking plug and fit M16 glands as required).
Connect the mains to the Power Supply PCB Assembly using the cable clamp arrangement provided and ensuring the
connections are tight. Note: with Version 1 PSU, the Earth cable should be connected to the pcb terminal, on
Version 2 PSU, the Earth cable should be connected directly to the earth stud on the back-box.
Connect the Volt-Free Pulse Output from up to four Energy Meters to the inputs marked Input 1-4 on the Control
PCB Assembly. See diagram below and Section 3.4.
PSU Ver.2
UP TO 4 ENERGY METERS MAY BE CONNECTED
POWER SUPPLY PCB
POWER GENERATION DISPLAYUNIT PCBASSEMBLYMDC 401 221
TB1
R1
LED1
EARTH
ENERGY
METER 4
ENERGY
METER 3
ENERGY
METER 2
ENERGY
METER 1
MAINS
CABLE
POWER
TB2
TB3
0V
+5V
TB4
0V
+5V
NEUTRAL
LIVE
F1
PSU1
SERIAL NO.
PSU Ver.1
TESTED
VOLT-FREE PULSE OUTPUT
VOLT-FREE PULSE OUTPUT
Control PCB Assembly
See Section 3.4
VOLT-FREE PULSE OUTPUT
VOLT-FREE PULSE OUTPUT
3.3. Energy Meter Pulse Output
The Unit is capable of sensing pulses that have an on and off time of at least 100ms. See diagram below.
ENERGY METER VOLT-FREE PULSE OUTPUT
100mS
MIN
ON
100mS
MIN
OFF
MF/22nd July 2010/Issue 6
Page 3 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
3.4. Control PCB Versions
The Control PCB may be one of two types which can handle different types of input signals:
Control PCB Issue 1 – 3:
Connect any of the following to any Input 1, 2, 3 or 4:
ENERGY
METER
OUTPUT
Connect to Terminal 1
ENERGY
METER
OUTPUT
Connect to Terminal 1
ENERGY
METER
OUTPUT
Connect to Terminal 1
Connect to Terminal 2
Connect to Terminal 2
Connect to Terminal 2
Control PCB Issue 4:
Connect any of the following to any Input 1, 2, 3 or 4:
ENERGY
METER
OUTPUT
Connect to Terminal 2 (NO)
ENERGY
METER
OUTPUT
Connect to Terminal 2 (NO)
ENERGY
METER
OUTPUT
Connect to Terminal 2 (NO)
Connect to Terminal 3 (COM)
Connect to Terminal 3 (COM)
Connect to Terminal 3 (COM)
SWITCHED
POSITIVE
OUTPUT
Connect to Terminal 1 (SP)
5-12V
0V
MF/22nd July 2010/Issue 6
Connect to Terminal 3 (COM)
Page 4 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
3.5. LCD Display Installation
After the back-box has been securely fitted to the supporting wall, unpack and carefully fit the LCD Display to the
four nylon pillars using a pozi-screw and nylon washer (provided) on each corner of the LCD Display (do not overtighten).
Plug the ribbon cable into the corresponding connector (J2) on the Control PCB and plug the back-light connector
into its corresponding connector (J1).
Remove the protective plastic covering the LCD Display at this point (three strips of plastic).
3.6. Set up
At this point, apply mains power to the unit. Set the Set/Run switch on the Control PCB Assembly to SET.
Use the Menu switch to advance through the following parameters in sequence (see photo below):
When a parameter is flashing, use the Up and Down switches to adjust.
When the unit is set to RUN, all parameters will be stored in non-volatile memory.
See section 3.8 regarding the External Set-up Control Unit.
3.6.1.
Set Pulse Value
The energy meters produce pulses which represent Watt-hours (Wh) being generated. The unit needs to be
programmed to set the Pulse Value in Wh. Also, if a number of identical systems are in place but only one
of the systems has energy meters fitted, then the Pulse Value can be multiplied by 1 to 9 to enable the
display to show the energy for the entire arrangement.
First set the number of systems (1 to 9) using the Up and Down switches. Then press Menu. Now set the
Pulse Value (1Wh, 10Wh, 100Wh, 1kWh, 10kWh per pulse). Press Menu.
MF/22nd July 2010/Issue 6
Page 5 of 12
The Micha Design Company Ltd
Micha Design
3.6.2.
Power Generation Display Unit
User Manual
801309-7.doc
Set Instant Power Time
The instantaneous power being generated is calculated by counting the number of pulses received over a
period of time. This parameter should be set for a time that allows a number of pulses to be received (which
depends on the size of the system and the pulses sent out by the energy meter).
The Instant Power Time interval can be set to 1, 2, 3, 5, 10, 12, 15, 20, 30 and 60 minutes. The
instantaneous power generated will appear on the display after the time selected and then remain unchanged
until the next update.
3.6.3.
Set Total Energy
If a display unit is being installed after the system is up and running or as a replacement, it may be desired to
enter the energy in Watt-hours (Wh) that has already been generated.
The installer may set the Total Energy as any 10-digit number representing Total Energy in Wh.
How to set Total Energy: When any digit of this parameter is flashing, use the Up and Down switches to
change the digit. Use the Menu switch to advance through all the digits. Press the Select switch to transfer
the number to the Total Power parameter.
When the unit is set to RUN, all parameters will be stored in non-volatile memory.
3.6.4.
Testing the unit
Each of the Pulse Inputs has a test switch associated with the input terminal connector. By pressing the test
switches the installer may simulate pulses being received and see the results on the display.
3.7. Installation of Acrylic Sheets
Using the eight M4 countersunk screws, fix the rear sheet of acrylic to the back box.
Place the graphic and the front sheet of acrylic onto the rear sheet of acrylic and temporarily fix them together using
the top two M8 fixings.
Apply clear self-adhesive tape all the way round the edges of the two acrylic sheets to seal the two together. This is
important as it can prevent small insects or moisture getting between the two sheets and affecting the appearance of
the graphic and display.
Using the four M8 fixings, fix the bezel in place (note that the front sheet will only be held in place by the adhesive
tape if the top two fixings are removed and the sheet is not supported). The four M8 fixings should be inserted from
the rear and the dome top nut used to secure the front.
MF/22nd July 2010/Issue 6
Page 6 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
3.8. External Set-up Control Unit
Units produced after June 2010 have the facility to connect an External Set-up Control Unit via a 9-way D-type
connector on the bottom side surface of the unit. The External Set-up Control Unit has the same switches as the
Main Control PCB and works in the same way. It allows changes to be made without disassembling the unit.
External Set-up Control Unit:
MF/22nd July 2010/Issue 6
Page 7 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
4. Drawings
4.1. Power Generation Display Unit - 42 x 30cm (A3) – General Arrangement
426mm
70mm
12
4 x M6 DOME NUTS
6 x REAR ACRYLIC FIXINGS
REAR PERSPEX - WITH CUT-OUT FOR LCD GRAPHICS DISPLAY
EARTH STUD
4 x BACK BOX FIXINGS
FRONT PERSPEX - NO CUT-OUT
POWER GENERATION DISPLAY UNIT PCB ASSEMBLY MDC 401 221
TB1
R1
LED1
EART H
1 HOLE FOR POSSIBLE
CABLE ENTRY
POWER
TB2
TB3
0V
+5V
TB4
0V
+5V
NEUTRAL
LIVE
F1
PSU1
SERIAL NO.
TEST ED
POWER SUPPLY PCB
R13
R14
C6
RN2
D2
R18
R19
R16
2
Micha
3
COUNTRY OF
ORIGIN: U.K.
2
D3
R20
R21
R23
1
LED3
3
TR3
IC5
TP6
LED4
2
D4
R25
R26
R22
1
SW4
C9
R17
1
IC4
SW3
TB5
C13
C10
XTAL1
C11
IC7
RN3
UP
C12
IC8
SW6
MENU
C4
C8
LCD
GRAPHICS
DISPLAY
PCB
1
J2
CONTRAST
SW7
SW8
3
SET
TR4
LCD RED +VE
BACK
LIGHT WHT -VE
+
3
C7
LED2
RN4
TP5
TR2
TB4
RN1
C14
SW2
TB3
250mm
R3
R5
J1
R24
2
TP4
R2
R4
IC9
LED1
IC3
IC2
R8
LED5
R10
D1
R11
R12
R15
1
SP NO COM SP NO COM SP NO COM SP NO COM
INPUT 1
INPUT 4
INPUT 3
INPUT 2
BACK BOX
TR1
303mm
PROGRAM PORT
J4
C3
+
TP2
POWER
SW1
TESTED
0V
TB2
SERIAL NO.
+5V
POWER
R6
TB6
C2
TP1
VR1
TB1
R27
BEZEL
SW9
IC6
TP7
RUN
PN: 401195 ISSUE
POWER GENERATION CONTROL PCBASSEMBLY
SELECT
SW10
J3
DOWN
CONTROL PCB
4 x M16 BLANKING PLUGS
EXTERNAL SET-UP CONTROL UNIT
CONNECTOR
15
4.2. Power Generation Display Unit - 42 x 30cm (A3) – Back Box Mounting Details
POWER GENERATION DISPLAY UNIT PCB ASSEMBLY MDC 401 221
TB1
R1
LED1
EARTH
POWER
TB2
TB3
0V
+5V
TB4
0V
+5V
NEUTRAL
LIVE
F1
PSU1
SERIAL NO.
TESTED
POWER SUPPLY PCB
TP5
2
D3
R20
R21
R23
1
LED3
3
IC5
TP6
LED4
2
D4
R25
R26
R22
1
SW4
R17
C10
XTAL1
C11
IC7
RN3
UP
C12
IC8
SW6
MENU
C4
C8
1
J2
CONTRAST
LCD
GRAPHICS
DISPLAY
PCB
SW7
SW8
3
SET
TR4
LCD RED +VE
BACK
LIGHT WHT -VE
VR1
3
IC4
TESTED
C6
RN2
C9
R24
2
D2
R18
R19
R16
1
TR3
TB5
C7
C13
LED2
RN4
SW3
R3
R5
J1
RN1
C14
SW2
TR2
TB4
R2
R4
+
3
IC3
IC2
IC9
LED1
TP4
TR1
TB3
LED5
R10
Micha
2
D1
R11
R12
R15
TB2
PROGRAM PORT
J4
C3
R27
1
SP NO COM SP NO COM SP NO COM SP NO COM
INPUT 1
INPUT 4
INPUT 3
INPUT 2
POWER
SW1
+
SERIAL NO.
TP2
R6
TB6
C2
TP1
0V
R8
+5V
R13
TB1
POWER
COUNTRY OF
ORIGIN: U.K.
250mm
R14
180mm
SW9
IC6
TP7
RUN
PN: 401195 ISSUE
POWER GENERATION CONTROL PCB ASSEMBLY
SW10
J3
SELECT
DOWN
CONTROL PCB
330mm
370mm
MF/22nd July 2010/Issue 6
Page 8 of 12
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
4.3. Power Generation Display Unit - 42 x 30cm (A3) – Graphic Design Detail (Overall)
13mm
8mm
A
A
134.0 mm
227.0 mm
303 mm
120.0 mm
261 mm
SEE DRAWING 501647
FOR DISPLAY DETAIL.
1st LINE TEXT AREA
2nd LINE TEXT AREA
ACRYLIC SHEET IS 422MM X 299MM
90.0 mm
3rd LINE TEXT AREA
8mm
A
A
13mm
13 8
384 mm
8 13
426 mm
4.4. Power Generation Display Unit - 42 x 30cm (A3) – Graphic Design Detail (Text)
HOLE IN GRAPHIC FOR DISPLAY
1st LINE TEXT AREA
3mm
23mm
6mm
90mm
2nd LINE TEXT AREA
23mm
6mm
3rd LINE TEXT AREA
120mm
MF/22nd July 2010/Issue 6
Page 9 of 12
23mm
6mm
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
4.5. Power Generation Display Unit - 60 x 50cm – General Arrangement
605 mm
73 mm
15 mm
4 x M8 DOMENUTS
REAR PERSPEX - WITH CUT-OUT FOR LCD GRAPHICS DISPLAY
FRONT PERSPEX - NO CUT-OUT
8 x M16 BLANKING PLUGS
4 x BACK BOX FIXINGS
POWER SUPPLY PCB
EARTH STUD
POWER GENERATION DISPLAY UNIT PCB ASSEMBLY MDC 401 221
TB1
R1
TB2
TB3
0V
+5V
TB4
0V
+5V
LED1
EARTH
POWER
NEUTR AL
LIVE
0V
C6
1
2
D3
R20
R21
R23
3
1
2
D4
R25
R26
R22
LED4
R17
Mich a
1
TP6
IC5
SW4
COUNTRY OF
ORIGIN: U.K.
3
LED3
C9
C10
XTAL 1
C11
IC7
R24
D2
R18
R19
R16
2
TP5
IC4
LCD
RED +VE
BACK
LI GHT WHT -V E
LCD
GRAPHICS
DISPLAY
PCB
C4
C8
+
3
RN2
C13
LED2
RN4
TR3
TB5
C7
SW3
R3
R5
J1
RN1
C14
SW2
TR2
TB4
TP4
R2
R4
IC9
R13
R14
D1
R11
R12
R15
2
1
J2
UP
C12
IC8
SW 6
MENU
505 mm
300 mm
CONTRAST
RN3
SW7
SW8
SE T
3
NO COM SP NO COM SP NO COM SP NO COM
INPUT 1
INPUT 4
INPUT 3
INPUT 2
TB3
LED5
R10
LED1
IC3
TR1
TESTED
IC2
R8
TP2
POWER
SW1
1
SP
TB2
SERIAL NO.
PROGRAM PORT
J4
C3
R27
P OW E R
BEZEL
+
TESTED
C2
TP1
SERIAL NO.
TB6
+5V
R6
TB1
PSU1
VR1
F1
SW9
IC6
TR4
TP7
RUN
PN: 401195 ISS UE
J3
POW ER GE NER ATION CONTROL PCB AS SE MBLY
SE LECT
SW1 0
DOWN
CONTROL PCB
BACK BOX
4 HOLES FOR POSSIBLE
CABLEENTRY
8 x REAR ACRYLIC FIXINGS
EXTERNAL SET-UPCONTROL UNIT
CONNECTOR
15 mm
4.6. Power Generation Display Unit - 60 x 50cm – Back Box Mounting Details
450.0 mm
420.0 mm
120.0 mm
15.0 mm
8 x 16.0 mm DIAMETER
GLAND HOLE
120.0 mm
4 x 5.0 mm DIAMETER
BACK BOX FIXING HOLE
120.0 mm
POWER SUPPLY PCB
POWER GENERATION DISPLAY UNIT PCB ASSEMBLY MDC 401 221
TB1
EARTH STUD
R1
LED1
EARTH
POWER
TB2
TB3
0V
+5V
TB4
0V
+5V
NEUTRAL
LIVE
2
D3
R20
R21
R23
1
3
TP6
1
2
D4
R25
R26
R22
LED4
C6
RN3
UP
C12
IC8
SW6
LCD
RED +VE
BACK
LIGHT WHT -VE
LCD
GRAPHICS
DISPLAY
PCB
C4
C8
+
XTAL1
3
SET
TR4
TESTED
R8
R14
R13
C9
C10
C11
IC7
SERIAL NO.
3
LED3
IC5
SW4
Micha
2
D2
R18
R19
R16
1
TP5
RN2
R17
3
LED2
RN4
IC4
C13
R3
R5
J1
C14
C7
SW3
TR3
TB5
TP4
R2
R4
RN1
R24
D1
R11
R12
R15
2
IC3
IC2
IC9
SW2
TR2
TB4
PROGRAM PORT
J4
C3
LED5
R10
LED1
TR1
TB3
+
TP2
POWER
SW1
TESTED
MENU
1
J2
250.0 mm 300.0mm
CONTRAST
R6
TB6
C2
TP1
0V
1
SP NO COM SP NO COM SP NO COM SP NO COM
INPUT 1
INPUT 4
INPUT 3
INPUT 2
100.0 mm
TB2
SERIAL NO.
R27
TB1
+5V
POWER
COUNTRY OF
ORIGIN: U.K.
4 x 61.5 mm DIAMETER
CABLE ENTRY HOLE
PSU1
VR1
F1
SW7
SW8
SW9
IC6
TP7
RUN
PN: 401195 I SSUE
J3
POWER G ENERATI ON CONTRO L PCB ASSEMBLY
SW10
SELECT
DOW N
CONTROL PCB
50.0 mm
25.0mm
52.5mm
MF/22nd July 2010/Issue 6
32.5
140.0 mm
Page 10 of 12
140.0 mm
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
4.7. Power Generation Display Unit - 60 x 50cm – Graphic Design Details
BEZEL INNER OUTLINE
OUTLINE OF ACRYLIC SHEETS
16mm
HOLES:
4 OFF 9.0 mm DIAMETER
DIMENSIONS:
205 mm
500 mm
90mm
BEZEL OUTER:
505 x 605 mm
BEZEL INNER:
445 x 545 mm
ACRYLIC SHEET: 500 x 600 mm
HOLE IN GRAPHIC
FOR DISPLAY
468 mm
205 mm
16mm
16
568 mm
374 mm
16
120 mm
106 mm
600 mm
4.8. Power Generation Display Unit - 60 x 50cm – Graphic Design Detail (Text)
HOLE IN GRAPHIC FOR DISPLAY
1st LINE TEXT AREA
3mm
23mm
6mm
90mm
2nd LINE TEXT AREA
23mm
6mm
3rd LINE TEXT AREA
120mm
MF/22nd July 2010/Issue 6
Page 11 of 12
23mm
6mm
The Micha Design Company Ltd
Micha Design
Power Generation Display Unit
User Manual
801309-7.doc
5. Software
5.1. Software History
Software
Version
Date Released
Comments
801 264
22nd Aug 2006
First Production Software
23rd Aug 2007
Change CO2 factor from 0.43 to 0.568
9th Nov 2007
Modifications to Settings Screen Layout
Ver 1.0
801 264
Ver 1.1
801 264
Ver 1.2
801 264
Refresh screen every 5 seconds
th
19 Nov 2007
Ver 1.3
801 264
Settings Screen: Pulse Value now adjustable from 1-9 units
(For multiple building use – assuming all units producing same power)
th
24 June 2008
Default for Instant Power Update Time changed to 2 minutes
1st Oct 2009
Settings Screen: Pulse Value Units can now be adjusted from 1-40
Ver 1.4
801 264
Ver 1.5
MF/22nd July 2010/Issue 6
Page 12 of 12
The Micha Design Company Ltd