PowerTech MP-3735, Руководство по эксплуатации

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11
Maintenance
The controller is maintenance-free. We strongly suggest that all components of the PV system are checked at
least annually,
Ensure adequate ventilation of the cooling element or body of the controller.
Check any cable strain reliefs
Check that all cable connections are secure
Tighten screws if necessary
Check and remove any terminal corrosion
Error Messages
Caution! Please do not open the controller or attempt to replace components when troubleshooting. Improper
maintenance can be hazardous to the user and the system.
If the controller detects errors or unauthorized operating states, it shows error codes on the display. Error codes
can generally be differentiated, whether there is a temporary malfunction, e.g. regulator overload or a more
serious system error that can be remedied by appropriate external measures.
Since not all errors can be simultaneously displayed, the error with the highest error number (priority) is
displayed. If several errors are present, the second error code is displayed after remedying the more significant
error.
The following meaning is assigned to the different error codes:
1.
Meaning: Battery polarities reverse warning
Remedy: Reconnect cable of battery in proper way.
2.
Meaning: Battery is wrong.
Remedy: Check battery voltage it might be too low or too high. Recharge battery manually if necessary. If battery
can’t be recharged, it might be deeply discharged. Replace battery if necessary.
3.
Meaning: Module current too high.
Remedy: Reduce the load current or module power.
4.
Meaning: Over current at the load output.
Remedy: Reduce load current.
If reducing load current does not work, one of the two situations occurred:
1) No load connected, press “Enter” button, LCD showing E4.
2) If the load is over 50W, press “Enter” button, load current showing 0.00A.
Reset: Remove all connections in Reverse sequence from 6 to 1(as advised on page 6), then follow the reset
procedure:
i. While holding down the “Menu” button, connect the Battery terminals
ii. Release the “Menu” button; this will prompt the LCD to show “FFFF”
iii. First connect the PV then the Load terminals
NOTE: Always connect the Negative first, then the Positive for all connections