Intel SERVER CHASSIS SR2500 SR2500 사용자 설명서
제품 코드
SR2500
Intel® Server System SR2500AL Power
Sub-System
Revision – 1.00
Intel order number D31980-004
17
2.8.5 AC
Inrush
AC line inrush current shall not exceed 40A peak for up to one-quarter of the AC cycle, after
which, the input current should be no more than the specified maximum input current. The peak
inrush current shall be less than the ratings of its critical components (including input fuse, bulk
rectifiers, and surge limiting device).
which, the input current should be no more than the specified maximum input current. The peak
inrush current shall be less than the ratings of its critical components (including input fuse, bulk
rectifiers, and surge limiting device).
The power supply must meet the inrush requirements for any rated AC voltage, during turn on at
any phase of AC voltage, during a single cycle AC dropout condition as well as upon recovery
after AC dropout of any duration, and over the specified temperature range (T
any phase of AC voltage, during a single cycle AC dropout condition as well as upon recovery
after AC dropout of any duration, and over the specified temperature range (T
op
). It is
acceptable that AC line inrush current may reach up to 60A peak for up to 1 msec.
2.9 Protection
Circuits
Protection circuits inside the PDB and the power supply shall cause the power supply’s main
+12V output to shut down, or shall cause a shut down of any of the three outputs on the PDB.
Either of these shutdowns will result in shutting down the entire power supply / PDB
combination. If the power supply latches off due to a protection circuit tripping, an AC cycle
OFF for 15 seconds shall be able to reset the power supply and the PDB.
+12V output to shut down, or shall cause a shut down of any of the three outputs on the PDB.
Either of these shutdowns will result in shutting down the entire power supply / PDB
combination. If the power supply latches off due to a protection circuit tripping, an AC cycle
OFF for 15 seconds shall be able to reset the power supply and the PDB.
2.9.1
Over-Current Protection (OCP)
Each DC/DC converter output on the PDB shall have individual OCP protection circuits. The
power supply and power distribution board (PS and PDB) shall shutdown and latch off after an
over-current condition occurs. This latch shall be cleared by an AC power interruption. The
following table provides the over-current limits. The values are measured at the PDB harness
connectors. The DC/DC converters shall not be damaged from repeated power cycling in this
condition. The +12V output from the power supply is divided on the PDB into four channels
and each is limited to 240VA of power. There shall be current sensors and limit circuits to shut
down the entire PS and PDB if the limit is exceeded. The limits are listed below.
power supply and power distribution board (PS and PDB) shall shutdown and latch off after an
over-current condition occurs. This latch shall be cleared by an AC power interruption. The
following table provides the over-current limits. The values are measured at the PDB harness
connectors. The DC/DC converters shall not be damaged from repeated power cycling in this
condition. The +12V output from the power supply is divided on the PDB into four channels
and each is limited to 240VA of power. There shall be current sensors and limit circuits to shut
down the entire PS and PDB if the limit is exceeded. The limits are listed below.
Table 10. Over-Current Protection Limits / 240VA Protection
Output Voltage
MIN OCP TRIP LIMITS
MAX OCP TRIP LIMITS
+3.3V
110% min (= 26.4A min)
150% max (= 36A max)
+5V
110% min (= 33A min)
150% max (= 45A max)
-12V
125% min (= 0.625A min)
400% max (= 2.0A max)
+12V1
112.5% min (= 18.0A min)
20A max
+12V2
112.5% min (= 18.0A min)
20A max
+12V3
112.5% min (= 18.0A min)
20A max
+12V4
112.5% min (= 18.0A min)
20A max
2.9.2
Over-Voltage Protection (OVP)
Each DC/DC converter output on the PDB shall have individual OVP circuits built in and they
shall be locally sensed. The PS and PDB shall shutdown and latch off after an over-voltage
condition occurs. This latch shall be cleared by an AC power interruption. The following table
provides the over-voltage limits. The values are measured at the PDB harness connectors. The
voltage shall never exceed the maximum levels when measured at the power pins of the output
harness connector during any single point of fail. The voltage shall never trip any lower than the
minimum levels when measured at the power pins of the PDB connector.
shall be locally sensed. The PS and PDB shall shutdown and latch off after an over-voltage
condition occurs. This latch shall be cleared by an AC power interruption. The following table
provides the over-voltage limits. The values are measured at the PDB harness connectors. The
voltage shall never exceed the maximum levels when measured at the power pins of the output
harness connector during any single point of fail. The voltage shall never trip any lower than the
minimum levels when measured at the power pins of the PDB connector.
Table 11. Over-Voltage Protection (OVP) Limits