PREVENTIVE AND CORRECTIVE MAINTENANCE
PRODUCT
ACS1000W
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS213400 E01
REV.
J
LANG.
en
PAGE
155/166
IMPORTANT!
When the checklist is completed, carefully try to turn the grounding
switch to the grounded position. If you cannot turn the grounding switch but
doors of medium voltage compartments have to be opened, call the ABB service
organization.
11.6.6. Visual checks on the drive
Check the drive and its immediate vicinity visually at the intervals stated in the
maintenance schedule and pay attention to the following items:
–
Humidity inside the drive
–
Permitted range of ambient air temperature and humidity of the drive
–
Dust built-up inside the drive
–
Appropriate fastening of cables and wires and connections of cable screens
–
Integrity of cable insulation
–
Signs for overheated components, wires, cables or busbars
–
Corrosion on circuit boards, connectors or busbars
–
Correct type of signal and power cables
For more information, see the applicable cable specifications.
–
If digital output DO04 of the I/O module is not energized, check the I/O module
-A5191 (-A1).
To do this, check if the auxiliary voltage is present at the supply terminals
of the I/O module.
•
X6:1.....24 V (DC)
•
X6:2.....0 V
□
–
Check that LED V726 and LED V740 of the I/O module -A5191 are lit.
The LEDs monitor the control voltages of the I/O module (Fig. 11
3).
When the LEDs are lit, the I/O module functions properly.
•
LED V726.....24 V (DC)
•
LED V740.....5 V (DC)
□
–
If digital output DO04 I/O module -A5191 is energized, check that the control
voltage is present at the terminals of the lamp GROUNDING SWITCH
UNLOCKED.
•
If the control voltage is present but the lamp is not lit, the lamp is
burnt out and must be replaced.
•
If the control voltage is not present, check the wiring of the lamp.
Correct the wiring if necessary.
□
5) Check that hazardous voltages from the motor cannot be fed
into the drive.
□
