Control Connections; Installation Check - Siemens Sikostart 3RW34 Instruction Manual

Table 4 3-Lead Connections for Dual Voltage 9-Lead Wye Motor
High Voltage Wiring
Controller Motor
Terminal Terminal
T1 T1
T2 T2
T3 T3
T4-T7*
T5-T8*
T6-T9*
* Jumper
4. 6-lead delta motor connection is shown in figures 16 and 17 .
Connections from controller to motor are one on one, i.e. T1
to T1, T2 to T2, etc.
5. For a dual voltage 12-lead delta motor (represented in fig-
ures 16 and 175), the 6-lead controller-to-motor connections
are listed in Table 5.
Table 5 6-Lead Connections for Dual Voltage 12-Lead Delta Motor
High Voltage Wiring
Controller Motor
Connection Terminal
T1 T1
T2 T2
T3 T3
T6 T12
T4 T10
T5 T11
T4-T7*
T5-T8*
T6-T9*
* Jumper
18
Low Voltage Wiring
Controller Motor
Terminal Terminal
T1 T1 & T7
T2 T2 & T8
T3 T3 & T9
T4-T5-T6*
* Jumper
Low Voltage Wiring
Controller Motor
Connection Terminal
T1 T1 & T7
T2 T2 & T8
T3 T3 & T9
T6 T6 & T12
T4 T4 & T10
T5 T5 & T11
6. For multispeed application, the SIKOSTART controller can be
used with an electromechanical starter to provide soft start.
The controller output must be connected to the line input of
the multispeed starter. Individual motor overload protection
should be supplied for each motor speed separately. During
speed transitions, control input (A1, A2) must be "off" for a
minimum of 200 milliseconds.
7 . When using the controller with part winding motors, these
motors must be connected in their full voltage run winding
configuration, and the three motor leads connected to the
controller output terminals.
8. The motor frame should be connected to the earth ground
terminal.

4.6 Control Connections

1. Connect the control power supply (Us) specified on the con-
troller label to the X1 and X2 terminals; see figure 11.
2. Connect control circuit pilot devices in accordance with the
application. Section 5 provides examples of several typical
arrangements; section 6 describes the dip switch (SW-1)
settings.

4.7 Installation Check

1. Check that all wiring and power connections are secure and
that mounting bolts are tight.
2. Remove all wire cuttings, installation particles, metal chips
and debris before energizing.
3. Shut enclosure doors to protect equipment from dust and
personnel from hazardous voltage.
Siemens Energy & Automation, Inc.