Chapter 2 Items Monitored By The Ras Feature; Fan Monitoring; Table 2-1 State Of The Equipment In Terms Of Fan Monitoring And State Of The Mcall - Hitachi HF-W7500 40 Manual

CHAPTER 2 ITEMS MONITORED BY THE RAS FEATURE

This chapter explains the items monitored by the RAS Feature.
For information about the hardware specifications of the RAS external contacts interface (optional)
described in this chapter and the usage of each contact, refer to "HF-W7500 Model 40
INSTRUCTION MANUAL (manual number WIN-62-0065)".

2.1 Fan Monitoring

The fan monitoring function monitors the multiple fans located in this equipment and notifies
in the following methods when one of the fans malfunctions.
(1) Hardware status window
(2) Event notification
(3) Popup notification
(4) Outputs on the status display digital LEDs
(5) Remote notification
(6) Automatic shutdown
(7) Alarm lamp
For details about (1) to (5), see "CHAPTER 4 CHECKING THE HARDWARE STATUS".
For details about (6), see "5.1 Automatic Shutdown of the Equipment".
If you use the MCALL contact of the RAS external contacts interface, the external hardware
connected to the RAS external contacts interface can detect malfunction of this equipment.
The following table shows how the state of the MCALL contact changes.
Table 2-1 State of the Equipment in Terms of Fan Monitoring and State of the MCALL Contact
During startup of the equipment or when the power is
off
When the fans operate normally or have recovered
from malfunction
During malfunction of the fans
The alarm lamp (as well as the MCALL contact of the RAS external contacts interface) is not
dedicated to fan monitoring, and therefore, it is not turned off (opened) when the system
recovers from fan malfunction as long as malfunction is detected for other monitored items.
Status of this equipment
2-1
2. ITEMS MONITORED BY THE RAS FEATURE
MCALL contact
Open
Open
Closed