ABB PST30 Installation And Maintenance Manual page 79

10
10.14
1SXU 132 021 M0201
Chapter 10
Functions
10:49 Programmable outputs – Relay K4, K5 and K6
Path in menu:
Menu/SETTINGS/Functional Settings/
Outputs/Relay K4 / K5 / K6
Switch over relays
The softstarter has three programmable output relays that can be used for different pur-
poses depending on the selected function, independently of each other.
Relay K4 has default setting Run, relay K5 has default setting Top of Ramp and relay K6
has default setting Event.
Run signal is given during start ramp, running, and stop ramp if used. Can be used to con-
trol an isolation contactor.
Top of Ramp signal is given when full voltage to the motor is applied. Can be used to control
an external by-pass contactor.
The event function has several alternatives that can be switched On/Off as required.
Each output relay can be programmed to any combination of events below:
• Motor Overload Protection
• Fault
• High Current Protection
• SCR Overload Protection
• Locked Rotor Protection
• Underload Protection
• Phase Imbalance Protection
Description
Fault group consists of:
• By-pass contactor does not close
• Phase loss fault
• Fieldbus fault
• Frequency fault
• Heat sink temp. fault
Shunt fault group consists of:
• By-pass contactor does not open
• Shorted thyristor
This signal can be used to trip an upstream breaker in case the softstarter is not able to
stop the motor.
Parameter text
Relay K4
Relay K5
Relay K6
10:50 Programmable software output V7
Path in menu:
Menu/SETTINGS/Functional Settings/
Outputs/SW Outp V7
If the softstarter is used with fieldbus communication, a fourth output is available. This is a
software output only and the signal can be taken only through the fieldbus interface.
(See 50 " Programmable outputs, Relay K4, K5 and K6" for further explanations.)
Parameter text
SW Outp V7
• Shunt fault
• Low current warning
• High current warning
• SCR Overload Warning
• Overload Warning
• Phase Reversal Protection
• PTC Protection
Default value Setting range
Run Run, TOR, Event
TOR Run, TOR, Event
Event Run, TOR, Event
Default value Setting range
Event Run, TOR, Event
Description
Function of program-
mable relay output K4
Function of program-
mable relay K5
Function of program-
mable relay output K6
Description
Function of program-
mable software output
V7
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