Owners Manual

LCCs have individual soft-start switches that protect the drives and LCCs when they are installed while the expansion enclosure
is powered on. The enclosure cooling system includes two dual-blower modules.
Power supply and cooling module connectors and LEDs
The following figure shows an example of a 2U, 25-drive expansion enclosure AC power supply and cooling module with a
recessed power in plug and status LEDs.
1
2
3
4
56
Figure 13. 2U, 25-drive expansion enclosure AC power supply and cooling module
Table 12. 2U, 25-drive expansion enclosure descriptions
Location Description
1
Ejector latch handle
2
AC power LED (input)
3
DC power LED (input) - (not supported)
4
Power supply and cooling module fault LED
5
Grounding screw
6
Power supply AC power in (recessed plug)
Table 13. 2U, 25-drive expansion enclosure AC power supply and cooling module LED status
LED Location Color State Description
AC power LED (input)
2
Green On AC power on
— Off AC power off, verify source power
DC power LED (output)
3
Green On DC power on (not supported)
— Off DC power off, verify source power
Power supply and cooling module
fault LED
4
Amber On Fault
Blinking During power shutdown and during
overvoltage (OVP) and undervoltage
protection (UVP) fault
— Off No fault or power off
18 Expansion enclosure component descriptions