GE Industrial Solutions GPS 4848_100 Users Guide (dual rectifier shelf) - Manual (Page 36)

Galaxy Power System 4848/100 with Dual Rectifier Shelf
4 - 2 Rectifiers Issue 5 September 2011
Front Panel Display
Power Switch This three-position switch has two functions:
• It controls the on/standby state of the rectifier.
• It is used to set the rectifier ID.
Status Indicators In addition to the ON and STBY LEDs, four other LEDs on the
rectifier’s faceplate indicate the rectifier’s condition.
• The ALM LED is red and lights when a thermal alarm occurs or a
rectifier fail condition occurs. This LED blinks when
communication with the plant controller is not active.
• The LIM LED is yellow lights when the unit is in current limit.
• The FAN ALM LED is red and lights when the fan inside the
rectifier is not functioning properly.
• The EQL LED is yellow and lights when the rectifier is in equalize
mode.
Current Display This display indicates the current of the rectifier. Upon specific
no-power conditions, the 3-digit display will show informative
messages.
Lamp Test To test the LEDs on the rectifier front panel, use the Lamp Test feature
of the controller.
Illustration
Figure 4-1: Rectifier Front Panel
ABC12345678
Model: 595LTA
480V 48V RECTIFIER KZO41234567 SX:X DC
220A/48V
ON
STBY ALM LIM FAN
ALM BST