Installation Instructions

Document No. DPD01375
Installation Instructions
August 24, 2018
Siemens Industry, Inc.
Page 11 of 36
Wiring Connections
1. Route shielded twisted pair (recommended
wire type) cable, 24-gauge minimum control
wiring in conduit, through knockout, and into
housing.
• For Electronic Bypass, see Figure 8
through Figure 15.
• For Conventional Bypass, see Figure 22
through Figure 29.
2. Connect control wiring per job-specific
drawings and Figure 20 (Electronic) and
Figure 34 (Conventional).
NOTE: Terminate shield at control device.
Control wiring is 12 to 24 AWG and
tightening torque is 5 lb-in.
3. If applicable, route communications wiring in
conduit, through knockout, and into housing.
• For Electronic Bypass, see Figure 8
through Figure 15.
• For Conventional Bypass, see Figure 22
through Figure 29.
4. Continue to route communications wiring to
the VFD and terminate as shown in the
BT300 VFD Application Manual
(DPD00149).
NOTE: Communication wiring should be
run with maximum separation
possible from all other wiring.
5. Route motor wiring in conduit, through
knockout, and into housing (see Figure 8
through Figure 14).
• See Figure 8 through Figure 15 for
Electronic Bypass.
• See Figure 22 through Figure 29 for
Conventional Bypass.
6. Connect motor wiring to motor overload and
ground lug. See Table 2 and for wire sizes
and tightening torques.
7. Route input power wiring in conduit, through
knockout, and into housing. See Figure 36
through Figure 42. In the two contactor
configuration, the M3 contactor is installed
and controlled by an internal rocker switch.
8. Connect input power wiring to the
disconnect switch and ground lug or to the
circuit breaker and ground lug. See Table 2
and for wire sizes and tightening torques.
WARNING/AVERTISSEMENT
Use only permanently-wired input power
connections.
N’utiliser que des connexions réseau
cablées.