Sma Sunny Boy Control User Manual Page 142
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Sunny Boy Control SMA Technologie AG
User Manual SUNBC-14:NE0206 138
Phase Coupling
When the communication path spans several phases, strong signal damping or a loss
of communication range should be expected. If a string inverter is connected to a
different phase (e.g., L2) than the Sunny Boy Control (e.g., L1), which we do not
recommend, data transmission will be possible only if the phases are coupled at suffi-
ciently high frequency. In many households, this is taken care of by three-phase ap-
pliances such as ranges, ACs, and heaters.
Although the transmission may be improved by installing a phase coupler in the
power distribution, communication over several phases remains a problem due to the
following:
• The detour via the phase coupler results in a longer transmission path.
• High-frequency coupling of phases boosts the damping effect of electrical
devices connected to the different phases.
L1
L3
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House distribution
Sub-distribution
Phase coupler
Phase coupler
L1
L2
L3
Connection
to utility
Sunny Boy
Control
Fig. 9.10: Interference suppression in case of phase coupling
- Overview Main Menu 2
- Overview Menu Setup I 3
- Overview Menu Setup II 4
- History of Manual Revisions 6
- Contents 8
- 1 Introduction 12
- 1.1 Operation Requirements 13
- 1.3 Safety Precautions 14
- [ MAIN MENU ] 15
- Total PV-Plant 15
- Realtime Data 15
- Daily Yield 15
- 20
- 20
- 20
- 3 Making Connections 23
- • Analog Modem 24
- • ISDN 24
- • Ethernet 24
- • GSM (mobile) 24
- Flexible PVC 27
- Shielding 27
- Twisted pair 2 (2 x 0.25 mm) 27
- Twisted pair 1 (2 x 0.25 mm) 27
- 3.2 Connection to a PC 31
- DB9 socket 33
- DB25 socket 34
- Control 35
- Insert RS485 36
- Piggy-Back here 36
- RS485 / RS232 38
- 3.3 Modem Connection 40
- • HvG’s PV system display 42
- 3.5 “Relay Out” Connection 44
- 3.5.1 Alarm Contact 45
- Sunny Boy Control 46
- 3.5.2 Switching Contact 47
- 4.1 Startup Screen 49
- 49
- 49
- 49
- 49
- ↓ENTER ↑ESC 50
- 4.2 Online Info 51
- 51
- 51
- 51
- 4.3.3 “Daily Yield” Function 55
- Device ID…device model 56
- 5 “Diagnostics” Function 58
- 63
- 63
- 63
- 63
- 5.4 System 66
- 66
- 66
- 66
- 6.2.2 Timing 71
- 6.2.3 Online Info 71
- 6.2.4 Tolerances 73
- 6.3.1 Communication 75
- 6.3.3 Relais Out 77
- 6.4.1 Registration 81
- • Managing a large system 83
- 6.4.2 Detection 84
- 85
- 85
- 85
- 85
- 6.4.3 Parameter 86
- 6.4.4 Adding a New Device 87
- • Install the device 87
- 6.4.5 Removing a Device 87
- 6.6.1 Modem 90
- 91
- 91
- 91
- 91
- 6.6.2 Remote Info 92
- Sample Plant Info Fax 96
- 6.7 NET/E-mail 97
- 7 Sunny Boy Control Plus 98
- Not mounted 100
- 7.2 “ANALOG IN” Connector 102
- ANALOG INANALOG IN 103
- O = Dl - (G * Ml) 104
- “DIGITAL IN/OUT” connector 109
- 7.3.1 24 V Power Supply 110
- DIGITAL IN/OUT 111
- Software-Based Configuration 113
- DIGITAL IN/OUTDIGITAL IN/OUT 115
- 7.4 Variables (VAR-1–VAR-16) 116
- Formulas 117
- 7.6 “Profile 2” Application 125
- Analog In1 10 V +Gi W/m 127
- Low High Low High 128
- Sunny Boy 129
- Configuring “Plus” Functions 133
- 9 Failures 135
- 138
- 138
- 138
- 138
- Gridvoltage(e.g.230V/50Hz) 139
- Resulting digital signal 139
- 9.2.1 Transmission Failures 140
- 9.2.3 Communication 148
- 10.1 Technical Data 149
- 10.2 Storage Capacity 153
- 10.4 AT Commands 159
- 11 Appendix 161
- 11.3 Suppliers 165
- 11.4 Contact Information 167
- CE Declaration of Conformity 168
- SMA Technologie AG 169
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