Emerson NetSure 211 C23 Manuel d'utilisateur télécharger pdf (Page 17)

Chapter 4 Alarm Handling 11

NetSure 211 C23 Embedded Power Supply System User Manual

No.

Alarm

Handling method

LVD2

1. Check if there is a mains failure, and the battery voltage is lower than the ‘BLVD’ value, or the battery

discharge time is more than the ‘BLVD Time’.

2. Check if someone manually disconnected the battery from the system

Rect Failure

The red indicator on the rectifier will turn on.

1. Reset the rectifier by powering it off and then on again.

2. If the alarm persists, replace the rectifier

Rect Protect

Check if the mains voltage is outside the range of 80V (AC under-voltage point) ~ 295V (AC over-voltage

point).

If the power supply is often outside this range, consult with the power grid maintenance personnel to

improve it

Rect Fan Fails

1. Check whether the rectifier fan is still working.

2. If the fan stands still, check whether the fan is blocked or not. If yes, clean it; if not, or if the fault

persists after the fan is cleaned, replace it (see 4.2 Handling Rectifier Fault)

Rect Not Respond

Check if the communication between rectifier and monitoring module failed. If the communication is

normal, restart the rectifier by pulling it out and pushing back in. If the alarm persists, replace the rectifier

Batt Over Temp

1. Check if there is a battery internal fault. If yes, replace the battery.

2. Check if the battery room temperature is too high. If yes, cool down the battery room

4.2 Handling Rectifier Fault

Handling indicator fault

The symptoms of usual rectifier faults include: green indicator (run indicator) off, yellow indicator (protection indicator)

on, yellow indicator blink, red indicator (fault indicator) on and red indicator blink.

The indicators are shown in Figure 4-1 and handling methods of the rectifier faults are given in Table 4-2.

R48-1000

Run indicator

Protection indicator

Fault indicator

Figure 4-1 Rectifier indicator

Table 4-2 Handling methods of the rectifier faults

Symptom

Monitoring

module alarms

Causes

Handling methods

Run indicator off

No alarm

No input/output voltage

Make sure there is input/output voltage

Assistant power source of the rectifier fails

Change the position of the faulty module with

normal module. If the faulty module cannot

work normally, replace it

Run indicator

blinks

No alarm

The monitoring module performs operations

upon the rectifier

Yellow

indicator on

Rect over temp

AC input voltage abnormal

Make sure the AC input voltage is normal

Over-

temperature

protection due

to:

Fan blocked

Remove the object that blocks the fan

Ventilation path blocked at

the inlet or vent

Remove the object at the inlet or vent

Ambient temperature too

high or the inlet too close to

a heat source

Decrease the ambient temperature or remove

the heat source

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Emerson NetSure 211 C23 Manuel d'utilisateur Page 17

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