Schneider Electric Altivar 58 VW3-A58101 Manual de usuario descargar pdf (Pagina 88)

ALTIVAR



58 Keypad Display VVDED397047US R8/01

Chapter 3 — Diagnostics and Troubleshooting 08/01

To measure the DC bus capacitor voltage:

1. Disconnect all power from the drive controller including external

control power that may be present on the control board and the option

board terminals.

2. Wait three minutes for the DC bus capacitors to discharge.

3. Read the model number of the drive controller from the nameplate

and identify the corresponding (+) and (–) measurement points from

Table 24 and Figure 25.

4. Open the door or cover of the drive controller.

5. Set the voltmeter to the 1000 Vdc scale. Measure the voltage

between the (+) and (–) measurement points identified in step 3.

Verify that the DC bus voltage has discharged below 45 V before

servicing the drive controller.

6. If the DC bus capacitors will not discharge below 45 V, contact your

local Square D representative. Do not operate the drive controller.

7. Replace all of the covers after servicing the drive controller.

Table 24: ATV58 Type H(+) and (–) Measurement Points

Drive Controller

ATV58H••••••

(+) Measurement Point (–) Measurement Point

Terminal

Block or

Connector

Terminal

Designation

Terminal

Block or

Connector

Terminal

Designation

U09M2• and U18M2• J2 (+) J2 (–)

U29M2• to D12M2•

J2 PA J18 7

U18N4• to D23N4•

D16M2• to D46M2•

J2 (+) J2 (–)

D28N4• to D79N4•

1 2 ... 83 84 85 86 87 88 89 90 91 92 93 ... 111 112

Sin comentarios

Schneider Electric Altivar 58 VW3-A58101 Manual de usuario Pagina 88