Basic Inspection. Vertiv NetSure 801 CAA

4. Faults maintenance. Overhaul and maintenance of other equipment shall be conducted in accordance with the requirements and methods provided by the manufacturer. But, during the routine maintenance, be sure to write down the fault causes and the maintenance results in the

“equipment calendar” . An equipment calendar shall be kept for each piece of equipment in the equipment room.

Basic Inspection

Handling Controller Fault

When the faults of the controller affect the DC power supply, turn off the controller.

Handling Rectifier Fault

NOTE!

If a rectifier is pulled out or there is faulty rectifier, users should reset the controller.

Or else the batteries cannot be boost charged

Fault phenomenon and handling method

Rectifier faults include power indicator off (green), protection indicator on (yellow), protection indicator flashing (yellow), fault indicator on (red) and fault indicator flashing (red).

The indicators positions are shown in Figure 106 .

Figure 106: Rectifier indicator position

Power indicator

Protection indicator

Fault indicator

Change the position of the abnormal and normal rectifiers upon abnormity. If the abnormal rectifier still cannot work normally, refer to Table 29 to dispose the faults.

Table 29: Disposal methods for rectifier faults

FAULT

RELATED

ALARM

FAULT CAUSE

Power indicator off (green)

No alarm No input or output voltage

Fan is blocked

Protection indicator on

(yellow)

Rectifier over temperatur e

Main causes of overhe at protect ion for rectifie r

The vent duct is expedited: there are some blockages at air intake or air outlet

High temperature or pyrotoxin is near to the air intake of rectifier

The rectifier isn ’ t absolutely inserted into

Vertiv | NetSure 801 CAA Series Power Supply System Instruction Manual

PROPOSAL

Ensure having input and output voltage

Remove the object which blocks the fan operation

Remove the blockage at air intake and air outlet

Decrease ambient temperature or remove the pyrotoxin

Reinsert rectifier

108

FAULT

RELATED

ALARM

FAULT CAUSE PROPOSAL

Rectifier protection the frame

No current sharing

PFC output overvoltage protection

AC input voltage exceeding the normal range

Check the rectifier communication whether normal or not. If not, continue to check the connection of communication lines. Replace the fault rectifier when it works normally

Change the position of the abnormal and normal rectifiers. Replace the abnormal rectifier if it cannot work normally all the same

Ensure the AC input voltage whether in normal range or not

Protection indicator flashing

(yellow)

Rectifier communic ation failure

Rectifier communication failure

Check the communication lines connection whether well or not

Fault indicator on

(red)

Rectifier failure

Overvoltage

Remove the abnormal rectifier and restart. Replace the rectifier if it occurs overvoltage again

Fault indicator flashing (red)

Rectifier fan fault

Fan fault

Fault description

1. Internal short-circuit of rectifier

Replace new fan

The rectifier will automatically exit the system in case of internal short-circuit.

2. Damage to partial rectifier

In case of damage to partial rectifiers, if the remaining undamaged rectifiers are able to meet the power supply requirements of loads, just turn off the AC input switches of the damaged rectifiers.

3. Rectifier output overvoltage

The overvoltage of a single rectifier will not cause the overvoltage protection of all rectifiers.

However, if overvoltage protection occurs to all rectifiers, the system cannot recover automatically.

Treatment: turn off the AC input switches of all rectifiers and remover the rectifier to disconnect it.

At this time, the system voltage should be below 56.4V. Then insert rectifier one by one and turn on the AC input switches to observe the output current of it. When the AC input MCB of a certain rectifier is switched on, its output current is obviously bigger than that of the others. When the system voltage is higher than 56.4V, the rectifier with bigger output must be faulty Replace it. If all the rectifiers show the same symptom, you must turn off the monitoring and rectifiers and then restart the rectifiers.

NOTE!

During the treatment of rectifier fault, delete the address code of the closed rectifier in the rectifier parameters setting through the controller. Refer to M831D Controller User

Manual for deleting method.

Vertiv | NetSure 801 CAA Series Power Supply System Instruction Manual 109