7
2-2-3. Interfaces
ALARM Connector
Pin Assignment Table
Pin No.
Signal Name
Description
1
FAN ALARM OUT
Fan failure alarm. Normally open.
2
POWER ALARM OUT
Power supply failure alarm. Normally close.
3 N/C
Not
used
4 N/C
Not
used
5
RESET IN
External reset input. Active low initiate.
6
FAN ALARM COMMON
Fan alarm common.
7
POWER ALARM
COMMON
Power supply alarm common.
8 GND
Common
ground
9 GND
Common
ground
Cable Connectors
9-pin D-sub connector (male) with inch security lock screws needed for user cable
fabrication.
Fan alarm
Pins 1, 6 remain OPEN during normal operation. If fan failure occurs at HVS-1000HS side,
pins 1, 6 will short and fan alarm signal output occurs.
Power supply alarm
Pins 2, 7 remain OPEN during normal operation. If a power supply failure occurs, pins 2, 7
will short and power supply alarm signal output occurs.
External reset
External reset signal input to pin 5, shorts pin 5 to pin 9. MU reset occurs when short initiated.
*
Max. contact load of 0.5A DC.
Содержание HVS-1000EOU
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