Ac Input Power & Motor Connections - Baldor 22H series Installation & Operating Manual

Section 1
General Information
AC Input Power & Motor Connections
3-16 Receiving & Installation
AC power and motor connections are different for controls that have a model number
suffix of "EL" and "EK". Be sure to use the correct procedure for your control.
Caution: Do not use power factor correction capacitors at the input power
lines to the 22H Line Regen control. Installing power factor
correction capacitors may damage the control.
Note: "EK" Controls are input phase sensitive. Be sure all connections are correct.
"EL" suffix
The AC power and motor connections are shown in Figure 3-4. Overloads are not
required. The 22H control has an electronic I
overloads are desired, they should be sized according to the manufacturers specifications
and installed between the motor and the T1, T2 and T3 terminals of the control.
Caution: Do not connect AC power to the Motor terminals T1, T2 and T3.
Connecting AC power to these terminals may result in damage to
the control.
Caution: Baldor recommends not using "Grounded Leg Delta" transformer
power leads that may create ground loops and degrade system
performance. Instead, we recommend using a four wire Wye.
1. Connect the incoming AC power wires from the protection devices to terminals
A1, B1 and C1 at the 3% line reactor.
2. Connect A2, B2 and C2 3% line reactor terminals to the L1, L2 and L3 power
input terminals of the control.
3. * Connect earth ground to the " " of the control. Be sure to comply with local
codes.
4. Connect the three phase power leads of the AC motor to terminals T1, T2, and
T3 of the control.
5. * Connect motor ground wire to the " " of the control. Be sure to comply with
all applicable codes.
* Grounding by using conduit or panel connection is not adequate. A separate
conductor of the proper size must be used as a ground conductor.
2 t motor overload protection. If motor
MN722