Brochures and Data Sheets

User Instructions UM1R483500E
Spec. No. 1R483200 (Model R48-3200) Issue AG, November 20, 2012
Spec. No. 1R483200E (Model R48-3200E)
Spec. No. 1R483500E (Model R48-3500E)
Page 19
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TROUBLESHOOTING AND REPAIR
Troubleshooting
Rectifier Current Sharing Imbalance
When multiple Rectifiers are operating in parallel and the load is greater than 10%, if the
current sharing imbalance among them is greater than 3%, check if the Rectifier is
properly seated in the shelf.
If the current sharing imbalance still persists following the verification suggested above,
replace the Rectifier exhibiting the current imbalance.
Rectifier Fault Symptoms and Troubleshooting
The fault indicators that can be displayed by the Rectifier are as follows. Refer to Table 3
for a list of possible causes and corrective actions.
Power Indicator (Green) OFF
Protection Indicator (Yellow) ON
Protection Indicator (Yellow) Flashing
Alarm Indicator (Red) ON
Alarm Indicator (Red) Flashing