Baldor 22H series, Installation & Operating Manual

Page: 28 / 140

Section 1
General Information
Receiving & Installation 3-17 MN722
Figure 3-4 “EL” Control 3 Phase AC Power and Motor Connections
Optional Connection of
Load Reactor and M-Contactor
L1 L2 L3
Alternate *
Fuse
Connection
Note 1
L1 L2 L3
L1 L2 L3
* Circuit
Breaker
Earth
*
Optional components not provided with 22H Control.
* AC Motor
See Recommended Tightening Torques in Section 7.
Note 2
Baldor
Series 22HXXX-EL
Control
Line
Reactor
Note 1
Note 2
Note 3
*Optional
Load
Reactor
Note 3
A1 B1 C1
A2 B2 C2
A1 B1 C1
A2 B2 C2
T1 T2 T3
Note 5
A1 B1 C1
Note 4
Note 3
*
Optional
Load
Reactor
Note 3
A1 B1 C1
A2 B2 C2
T1 T2 T3
Note 5
*
Optional
RC Device
Electrocube
RG1781-3
T1
T2 T3
G
T1
T2 T3
G
7
8
9
*
M Enable
J1
* Motor
M M M
*
M-Contactor
To Power Source
(Rated Coil
Voltage)
M=Contacts of optional M-Contactor
Note: Close “Enable”
after “M” contact closure.
Notes:
1. See “Protective Devices” described previously in this section.
2. Shield wires inside a metal conduit.
3. 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.
4. 3% Line Reactor is required at input.
5. See Load Reactors in this section.
6. 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.
Note 6