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PAC3000S12-T1 PSU
1. If the INSTALLED signal is at high level, the OPOK signal is at low level.
2. MV12 output mode
●
If the output voltage is greater than 11.5 V, OPOK is at high level.
●
If the output voltage is lower than 11.4 V, OPOK is at low level.
●
The time from when OPOK drops to 1.43 V to when the 12 V busbar voltage drops to 9.5 V is greater
than 200 μs (this is required in the case of input power failure, input overvoltage/undervoltage, fan
fault, overtemperature, and output undervoltage, and is not required in the case of OPOK alarms
caused by output overcurrent/short-circuit and output overvoltage).
3. MV6 output mode
●
If the output voltage is greater than 5.9 V, OPOK is at high level.
●
If the output voltage is lower than 5.8 V, OPOK is at low level.
4. The PSU can report the OPOK fault in advance if the fault can be predicted by the PSU (such as input power
failure, input overvoltage/undervoltage, fan fault, overtemperature, or output undervoltage).
9.7 IPOK
The IPOK signal is used to detect whether the PSU input is normal.
interconnect diagram of the IPOK signal.
Figure 9-5 Interconnect diagram of the IPOK signal
Table 9-8 IPOK signal characteristics
Signal Characteristics
Signal type: detect whether the PSU
input is normal
IPOK = High
Technical Manual
PSU side: The power is output after RC filtering.
System side: Pulled down to GND by a 100-kilohm
resistor and connected to the system CPLD over a 100-
ohm series resistor.
The input is normal (90 V AC < V
< V
< 300 V DC).
in
9 Control Functions
Figure 9-5
shows the
< 264 V AC; 180 V DC
in
41
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