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BOOK 0958-B
COMPONENT
BRAKING TORQUE (%)
STOPS PER MINUTE
a.
HIGH INERTIA LOADS MAY EXTEND BRAKING TIME AND CAUSE THE WATTAGE
RATING OF THE DYNAMIC BRAKING RESISTORS TO BE EXCEEDED.
An antiplug feature is included with optional Armature Contactor Reversing With Dynamic Braking (Option 1004).
This feature prevents restarting the motor before the motor has braked to a stop.
SPEED CONTROL
Motor speed is directly proportional to the setting of the MOTOR SPEED potentiometer or the magnitude of an
external speed reference signal, as applicable. This potentiometer or the speed reference signal may be adjusted while
the motor is running or may be preset before the motor is started.
The rates of acceleration and deceleration are preset by the ACCEL and DECEL potentiometers, respectively,
located on the controller control board.
Maximum speed and minimum speed are preset by the MAX SPD and MIN SPD potentiometers, respectively,
located on the control board.
TORQUE CONTROL
Motor torque is directly proportional to the setting of the CURRENT LIMIT potentiometer or the magnitude of an
external torque reference signal, as selected by dip switch SW3, position 3. This potentiometer or the current reference
signal may be adjusted while the motor is running or may be preset before the motor is started. Note that if the process
demands less torque then the torque reference is commanding, motor speed will continue to increase up to maximum
speed.
JOG
If a RUN-STOP-JOG switch is used, place the switch in JOG position. Otherwise initiate a Jog command. Jog is
momentary, causing motor rotation only while the switch is held in JOG position or while a Jog command is active.
Release the switch to stop the motor.
Normally, jog speed is directly proportional to the setting of the MOTOR SPEED potentiometer. If a separate JOG
SPEED potentiometer is used, jog speed will be directly proportional to the setting of the JOG SPEED potentiometer.
TABLE 5. DYNAMIC BRAKING CHARACTERISTICS
RATED
MODEL
VOLTAGE
115V
2331
2335
230V
115V
2332
2336
230V
115V
2331
2335
230V
115V
2332
2336
230V
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RATED
HORSEPOWER
1/6
1/4
1/3
1/2
180
129
103
66
NA
NA
400
278
190
300
215
170
110
NA
NA
NA
400
320
15
12
11
8
NA
NA
12
8
9
6
5
5
NA
NA
NA
5
20
a
3/4
1
1-1/2
2
44
34
NA
NA
130
88
62
75
60
NA
NA
220
145
105
6
2
NA
NA
6
1
1
1
4
4
NA
NA
4
4
3
3
3
NA
NA
NA
85
NA
NA
NA
2
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