Pss - The Flexible Range Description - ABB PSR Manual

PSS – The flexible range
Description
Product description
• Rated operational voltage 208 − 690 V AC
• Rated control supply voltage 110 − 120 V AC
or 220 − 240 V AC
• Rated operational current 18 − 300 A (Up to 515 A
Inside Delta)
• Wide ambient temperature range, -25 to +60 ºC
• Settings done by rotating switches
• Designed for continuous operation without by-pass
• By-pass signal relay allowing easy control of external
by-pass contactor
• Fault signal relay (NO or NC)
• Current limit function as an option
14 Softstarters | 1SFC132005C0201, rev.F
The PSS softstarter allows both in line and inside delta
connection making it a very flexible option. It is the ideal
solution when looking for a robust solid state starting solution
when for instance many starts per hour are required.
Flexible connection
The PSS softstarter can be connected both in line and inside
delta. The inside delta connection makes it possible to select
a smaller size softstarter matching the inside delta current. All
functionality will still remain the same.
Replacement for star delta starters
As the PSS can be connected inside delta, it is very cost
efficient for replacing existing star delta starters, by reusing the
two sets of motor cables as well as the contactors and thermal
overload.
Solid state starting solution
The robust design of the PSS softstarter has no mechanical
moving parts and it is dimensioned to handle many starts per
hour, which can be required in for instance elevator applications.
Few settings
The set-up of the PSS softstarter is easily done using the
three rotating switches to adjust the start and stop and the dip
switch to select between in line or inside delta connection. This
will also give a quick and easy overview of the used settings.
Possible to use current limit
Using an external current transformer will make it possible to
activate the current limit function. This will allow you to keep
the current at a pre-set level also when starting heavy duty
applications.