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Rockwell Automation 1325L DC Motors, Frames C210ATZ - C440ATZ User Manual

Page 7

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DC Motors

7

Important: If motor is supplied with dual voltage shunt fields,

connections must be made for appropriate voltage.

Figure 2
DC Motor with Dual Voltage Field

Thermostat (Thermal Protector)

Important: When motors are provided with thermal protection

(typically thermostats), it is important to properly connect
and apply the devices. This will ensure that the motor is
properly protected from being operated if thermal limits
are reached and/or exceeded. The control system must be
configured to reduce the motor load and/or shut down the
motor control system to allow the motor to cool to a level
within acceptable operating ranges. If the motor is
operated with the thermal protective devices tripped
(indicating an over temperature condition), the motor
insulation could be damaged and complete failure of the
motor insulation is possible. In the event of motor failure
due to an over temperature condition, Rockwell
Automation requires that motor thermal protective devices
(when supplied) be adequately monitored and
incorporated into the motor control system to maintain
warranty. Failure on the part of the individual installing
this equipment to take these steps will result in the factory
warranty being voided.

Important: Motors may have one or more thermostats (leads marked

P1, P2, etc.) to indicate motor overheating. Thermostat
contacts must be connected in the motor control or
indicating circuit. Failure to connect the thermostat leads
will void the motor warranty. Thermostat contact ratings
are listed below. Motors having thermistors or resistance
temperature detectors to indicate motor over temperature
must have these devices connected in the proper control
circuit to protect the motor.

+A1

High
Voltage

Low
Voltage

Field
Connection

CCW

Rotation Facing Commutator End

CW

A2

S1

+F1

F2

F11

A1

+A2

S1

+F

F

F

+A1

A2

S1

–S2

+F1

–F2

F11

A1

+A2

S1

+F

–F

F

–S2

–F22

–S2

–F

F22

–S2

F

Maximum Voltage

250V, 60 Hz

Rated Current

6.3 amps

Maximum Breaking Current

20 amps