Eaton DS7 - Page 155

8 SmartWire-DT
8.9 Programming
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com 151
8.9.2.1 Local – State diagram for sizes 1 and 2
If a size 1 or 2 DS7-SWD soft starter is used with PNU 928.0 = 0, the state
diagram shown below will apply. The transition from S3 to S4 is automatic.
Figure 115: State diagram: Local (sizes 1 and 2)
8.9.2.2 Local – State diagram for sizes 3 and 4
If a size 3 or 4 DS7-SWD soft starter is used with PNU 928.0 = 0, the state
diagram shown below will apply. The transition from S3 to S4 takes place
when the EN control signal terminal is switched.
Figure 116: State diagram: Local (sizes 3 and 4)
8.9.2.3 Local – S4: Operation
If a DS7-SWD of any size is used with PNU 928.0 = 0, the state diagram
shown below will apply. The transitions take place when the A1 control
signal terminal is switched.
Figure 117: State diagram: Local – S4
S3: Switched On
S4: Operation
EN_Op = 1
(Auto)
EN_Op = 0
(Auto)
S3: Switched On
S4: Operation
EN_Op = 1
EN_Op = 0
S4.1: Idle Operation
S4.2 Ramping Up Operation
S4.3: Ramping Down Operation
S4.4: TOR Operation
Bottom
of Ramp
Ramp Down
EN_Set = 0
Ramp Up
EN_Set = 1
Top of Ramp
Ramp Up
EN_Set = 1