Baldor 22H series Installation & Operating Manual page 28

Section 1
General Information
Figure 3-4 "EL" Control 3 Phase AC Power and Motor Connections
L1
Note 1
* Circuit
Breaker
Note 2
A1 B1
Line
Note 4
Reactor
A2 B2
Note 2
L1
Series 22HXXX-EL
Control
T1
Note 3
A1 B1
*Optional
Note 5
Load
Reactor
A2 B2
Note 3
Note 3
*
Optional
Note 5
Load
Reactor
Note 3
M=Contacts of optional M-Contactor
MN722
L2 L3
Earth
C1
C2
Notes:
L2 L3
1.
2.
Baldor
3.
4.
T2 T3
5.
C1
6.
C2
T2 T3
T1 G
* AC Motor
Optional Connection of
Load Reactor and M-Contactor
T1 T2 T3
A1 B1 C1
A2 B2 C2
M M M
T2 T3
T1 G
* Motor
See Recommended Tightening Torques in Section 7.
L1 L2
Alternate *
Fuse
Connection
A1 B1
*
Optional components not provided with 22H Control.
See "Protective Devices" described previously in this section.
Shield wires inside a metal conduit.
Metal conduit should be used to shield output wires (between
control and motor). Connect conduits so the use of Load
Reactor or RC Device does not interrupt EMI/RFI shielding.
3% Line Reactor is required at input.
See Load Reactors in this section.
A motor circuit contactor is recommended to provide a positive
disconnect and prevent motor rotation which could pose a
safety hazard. Connect the M-Contactor as shown. The
contactor should open the enable input at J1-8 at least 20 msec
before the main M-contacts open to prevent arcing at contacts.
This greatly increases contactor life and allows use of IEC rated
contactors.
To Power Source
(Rated Coil
Voltage)
J1
*
M Enable
7
8
9
L3
Note 1
C1
Note 6
*
Optional
* RC Device
M-Contactor
Electrocube
RG1781-3
Note: Close "Enable"
after "M" contact closure.
Receiving & Installation 3-17