SMA SUNNY CENTRAL - Manual (Page 54)

Failures and Warnings SMA Solar Technology AG
54 SC-BEN092751 User Manual
217 Error text:
DC CB tripped or door switch open
Error type 2
Cause:
• The cabinet door was opened during operation.
• The DC circuit breaker was tripped due to an internal fault.
• The reverse current monitoring system on the DC side has switched off.
• The EVR resistor's current monitoring system has tripped.
Corrective measures:
• Close the cabinet doors.
• Check the function of the door switches.
• Check the function and activation of the emergency shut-off relay.
• Check reverse current monitoring system.
• Visually inspect the chopper module and the EVR resistors.
• Contact the Sunny Central Serviceline.
220 Error text:
Release or Reset Signal faulty
Error type 2
Cause:
The release signal or confirmation signal of the inverter bridge is defective.
Corrective measures:
If this error is always present, contact the Sunny Central Serviceline.
221 Error text:
CHOPPER overtemperature
Error type 3
Cause:
• EVR resistor overtemperature.
• Defective chopper module.
• After 90 minutes, a new startup attempt occurs.
Corrective measures:
• Check resistor for dirt.
• Ventilate resistor sufficiently.
• Contact the Sunny Central Serviceline.
No. Description