ABB PSTX30 Installation And Commissioning Manual page 130

This chapter describes basic maintenance for the PSTX
Softstarter.
CAUTION
Make sure that the softstarter is de-energized
before preforming maintenance.
Do not open the softstarter or touch any live parts
when the main and supply voltage is connected.
CAUTION
Hazardous voltage: Can cause death or serious
injury. Turn off and lock out all power that
supply this device before you start work on the
equipment.
INFORMATION
ABB personell have to obey the instructions in
ABB CISE 15.4.
Service and repair should be performed by
authorized personnel only. Note that unauthorized
repair affects saftey and warranty.
9.1 Regular maintenance
• CAUTION! Make sure that the softstarter is
de-energized before checking the connections.
• Check that all mounting bolts/screws are fastened.
9
• Check that all connections of main, control- and
supply circuits are fastened.
For tightening torques, see chapter 5.1.1.1
Tightening torques and cable dimensions.
• Tighten the terminal screws and bolts on the
connection bars, if needed.
For tightening torques, see chapter 5.1.1.1
Tightening torques and cable dimensions.
CAUTION! Make sure that the softstarter is
de-energized before tightening the bolts/screws.
• Check that the cooling airways are free from dirt and
dust.
CAUTION! Do not use pressurized air to clean.
• If the softstarter is mounted inside a cabinet, check
external filters. Clean, if needed.
• Check that the fan is working and rotating freely. The
blades shall rotate without any resistance. This can be
checked at voltage free
• Check the Real Time Clock and adjust if necessary.
• In case of a fault, or if a fault can not be reset, see
chapter 10.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
state.
9.2 Service and repair
In case the PSTX Softstarter has to be repaired,
contact your ABB reseller/Office or contact ABB via
Website.
CAUTION
Make sure that the softstarter is de-energized
before preforming maintenance.
Do not open the softstarter or touch any live parts
when the main and supply voltage is connected.
CAUTION
Hazardous voltage: Can cause death or serious
injury. Turn off and lock out all power that
supply this device before you start work on the
equipment.
INFORMATION
ABB personnel have to obey the instructions in
ABB CISE 15.4.
Service and repair should be performed by
authorized personnel only. Note that unauthorized
repair affects saftey and warranty.
CAUTION
In the event of a short circuit on the load side
of a softstarter, the device could be completely
destroyed and possibly cause danger to
personnel. By using a correctly rated short circuit
protection device, e.g. a fuse or a circuit breaker,
the damage will be limited to one of the two
categories, defined in IEC 60947-4-2 and EN
60947-4-2:
Type 1: The softstarter might be damaged and
some or all parts might need to be replaced.
Type 2: The device should be operable after the
event of a short circuit.
Type 2 coordination is achieved by using a
semiconductor fuse. A coordination table is
found in the catalogue and online via ABB
Website.
To be able to claim warranty for any damage on
the thyristors, the coordination type 2 must be
achieved.