Commissioning The Battery Current Sensor - SMA Sunny Island 2012 Technical Description

SMA Solar Technology AG

9.3 Commissioning the Battery Current Sensor

When connecting a battery current sensor to the Sunny Island the internal offset must be calibrated.
Proceed as follows:
1. Place the Sunny Island in standby mode (see section 10.1.2 "Stopping" (Page 85)).
2.
NOTICE!
System error due to wrong parameter entry
All parameter settings which could affect the operating safety of the island grid
system are protected/locked by the installer password.
•
•
3. Remove the "BatCur+" wire from the terminall
clamp 1 of the battery current sensor.
4. Connect both the "BatCur+" and the "BatCur-"
wires to the terminal clamp 2.
5. Start the Sunny Island
6. Set the following parameters:
Choose the type of battery current sensor:
- "225.01 BatCurSnsTyp" (None / 50 mV /
60 mV). Only after activation of the
parameter with 50 mV or 60 mV will other
parameters (02, 03 and 04 in the menu
"225 Battery Current Sensor") be shown
and activated.
Set the maximal current for the battery current
sensor (e.g., 400 A / 60 mV):
- "225.02 BatCurGain60": (for a 60 mV
output (EU-Standard))
- "225.03 BatCurGain50": (for a 50 mV
output (US-Standard))
7. Start the self-calibration:
- "225.04 BatCurAutoCal" to "Start"
The Sunny Island conducts a self-calibration.
Technical Description
Only qualified personnel should change and set system parameters.
Enter the installer password (see chapter 10.3.2 "Setting the Installer
Password" (Page 102)).
Terminal clamps battery current sensor
SI2012_2224-TEN082311
(First) Commissioning
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