Figure 8-16: Position Of The Terminals And The Potentiometers For Adjustment; Table 8-14: 3Rw30/31 Event Messages - Siemens sirius System Manual

3RW3 semiconductor motor control unit
Position of the termi-
nals
Line length of the con-
trol cable
8.3.6 Event messages and diagnostics
8-32
3RW30
The following graphic illustrates the position of the terminals and the poten-
tiometers for adjustment.
Frame size S00
3RW301.
1 L1 3 L2 5 L3 IN1 A1
5
10
0 20s
min max
5
10
0 20s
2 T1 4 T2 6 T3 A2

Figure 8-16: Position of the terminals and the potentiometers for adjustment

3RW31
The 3RW31 soft starters are available in frame size S0. Outwardly, they dif-
fer from the 3RW30 in the labeling of the contacts and the terminals:
• There is no BYPASSED auxiliary contact. The free contact is used to
enable the necessary drive contact IN2 to switch between the ramp
times t and t .
R1 R2
• The 3RW31 does not have a coasting-down ramp. The potentiometer with
which the coasting-down time is adjusted on the 3RW30 is used here to
set the second ramp time t
• There is no ON auxiliary contact.
To eliminate problems with the cable coupler capacitances, the control cable
should be shorter than 15 m. (This is based on devices with a rated control
supply voltage of UC 24 V to 50 m.)
To eliminate problems in control cables that are fed out of the cubicle, cou-
pling links must be used.
Event messages
READY LED
BYPASSED LED

Table 8-14: 3RW30/31 event messages

Frame size S0 to S3
3RW302./303./304.
1 L1 3 L2
A2 A1 1
min
13 14/23 24
2 T1 4 T2
.
R2
Continuous
while starting up or coasting
Flashing
Continuous
5 L3
3RW
5
10
0 20s
max
5
10
0 20s
6 T3
Ready for operation
down
Bypassed
SIRIUS System Manual
GWA 4NEB 430 0999-02b