Zippy RHI-6460P - Manual (Page 8)

1.4 FEATURES
8
REDUNDANCY Redundant function of the power system will take place in a zero
transfer time and back up the module output for each other,
HOT-SWAP
FUNCTION The power system provides a Hot-Swap function. You can easily
replace the defective unit without any interference to the system
when either one of the redundant power supply module fails or
breaks down
BUZZER
A buzzer alarm will sound up whenever one of the power supply
units fails. The alarm can be reset by a reset switch either located
on the front control panel or from the rear of units. Remote control
function is also available.
POWER
DEFECTIVE
SIGNAL The power supply system provides a power defective signal through
a power monitor card (PMC-21 / 22) to acknowledge the system.
LED'S The 2 green LED lights (on/off) either on the control panel or from
the rear of the power system indicate if any one of the two power
modules is failed.
AC IN
DETECTION
(AC/PS1, 2) FOR
EACH POWER
MODULE This signal output is a " LOW" level, at normal AC input for each
power module.
(It's not provided for RHH series)
EACH POWER
MODULE IS IN
(PD1, 2)
As the power module is plugged - in, we have a "LOW" level signal
output.
(It's not provided for RHH series)
POWER GOOD
(PG1, 2) SIGNAL
FOR EACH
MODULE
As normal voltages output from the power module, we have a
"LOW" level signal output.
DUAL OVP
OVER VOLTAGE PROTECTION circuit is available basically in
each module, now one more OVP circuit after the ORING DIODE
is provided additionally, they are used to protect unit failure due to
any mistakes in connection at terminal blocks by user.