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Chapter 4 ZXD030 S480 Rectifier Specifications
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PFC output over/under-voltage protection
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DC Output over-Voltage Protection
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DC Output over-current protection
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Over-temperature protection and fan speed control
AC Input Over/Under-Voltage Protection
The operational status of rectifiers varies as the AC input voltage varies, refer to
.
If the AC input voltage is not within the range of 85 V to 295 V, the AC input protection
circuit takes effect.
Table 4-2 Relationships Between AC input voltage and Operational Status
AC Input Voltage
Operational Status
Description
< 75 V
Shutdown
The rectifiers shut down, they will start working
automatically after the AC input voltage recovers.
75 V to 85 V
Low-voltage
protected
The rectifiers provide no output, the Power indicator is
off while the Alarm indicator is on. The rectifiers will
start working automatically after the AC input voltage
recovers.
85 V to 295 V
Operating normally
The rectifiers provide 48 V DC output, the Power
indicator is on while the Alarm indicator is off.
> 295 V
Over-voltage
protected
The rectifiers provide no output, the Power indicator is
off while the Alarm indicator is on. The rectifiers will
start working automatically after the AC input voltage
recovers.
The different operational status are implemented by internal monitoring components (the
voltage precision is ±5 V AC), see
.
Figure 4-1 AC Input Over/Under-Voltage Protection
4-3
SJ-20121116145308-001|2012-12-05 (R1.0)
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