ABB PSTX720 - Page 94

94 Functions | Installation and commissioning manual | 1SFC132081M0201
7.14.3 Relay outputs
The Softstarter has 3 relay outputs. The relay outputs are
K4, K5 and K6. The relays outputs are: 30VDC/250VAC
Ith = 5A , Ie= 1,5Amp (AC-15).
You can set the function of these relay output signals
Functions or an event group can be related to the
physical signal through a drop down menu on the HMI.
The programmable options for each relays are:
• None – No function on the relay output.
• Run – Indicates when the Softstarter gives voltage to
the motor.
• Top of ramp (TOR) – Indicates that motor runs on full
voltage.
• Event group (0-6) – Faults, protections, warning are
all selectable by customer.
• Sequence 1-3 Run – Used to control the line
contactors during sequence start.
• Sequence 1-3 TOR – Used to control the bypass
contactors during sequence start.
• Run reverse – Used to close the reversing contactor.
As default K4 is set to function Run, K5 to Top of ramp
and K6 to Eventgroup 0.
Description of the relay terminals
Each relay has 3 terminals: 1 common terminal (COM),
1 normally open terminal (NO) and 1 normally closed
terminal (NC). . See Figure 7.8 .
Normally open – Circuit is open in normal mode (circuit is
not shorted to common).
Normally closed – Circuit is closed in normal mode (the
circuit is continuously shorted to common).
Internal relay outputs (internal I/O) have these parameters:
Parameter Description Setting range Default value
10.04 K4 function Function of programmable output relay K4,
K5, K6.
None, Run, Top of ramp,
Eventgroup 0 -6, Sequence 1-3
Run, Sequence 1-3 TOR, Run
reverse
Run
10.05 K5 function Same as K4 function Same as K4 function Top of ramp
10.06 K6 function Same as K4 function Same as K4 function Event group 0
External relay outputs (extension I/O) have these
parameters:
Parameter Description Setting range Default value
11.09 1DO0 function Function of programmable output relay
1DO0 (extension IO).
None, Run, Top of ramp,
Eventgroup 0 -6, Sequence 1-3
Run, Sequence 1-3 TOR, Run
reverse
Run
11.10 1DO1 function Same as 1DO0 Same as 1DO0 Top of ramp
11.11 2DO2 function Same as 1DO0 Same as 1DO0 Event group 0
11.12 2DO3 function Same as 1DO0 Same as 1DO0 Motor Current, A
Figure 7.8
A contactor may for example be connected (230 volts)
1SFC132081M0201
Normally
open
Common
230V
Contactor
Normally
Closed
7