(continued)
4. Adjust the ACCEL trimpot to achieve the desired soft start time. CW rotation will increase accel time.
5. Rotate the CURRENT LIMIT trimpot fully CCW until the motor begins to stall. Apply a full load to the motor. While motor
is stalled adjust the CURRENT LIMIT trimpot CW until a desired current setting is obtained.
6. Adjust I.R. trimpot CW 1/2 way. If motor RPM is inconsistent (jumpy), rotate I.R. trimpot CCW until rotation is stable.
If a newly installed control will not operate, it is likely that a terminal or connection is loose. Check to make sure connections are
secure and correct. If the control is still inoperative, refer to the following chart for reference:
PROBLEM
Motor doesn't run
Motor "hunts"
Motor runs at "full speed"
uncontrollable
Motor rotates in wrong direction
Motor stalls under a light load
INPUT VOLTAGE
12 VDC ± 15%
12 VDC ± 15%
12 VDC ± 15%
24 VDC ± 15%
24 VDC ± 15%
24 VDC ± 15%
36 VDC ± 15%
36 VDC ± 15%
36 VDC ± 15%
* 24 volt and 36 volt units with the same current ratings are interchangeable (ie. 24 volt unit will operate with 36 volt input and
a 36 volt unit will operate with 24 volt input, same current rating).
Load current (continuous)
Speed adjustment
Speed range
Overload capacity
Current limit
Acceleration
Deceleration
Maximum speed
Minimum speed
Connections
Speed regulation
Operating temperature
Package configuration
Internal operating frequency
Thermal protection
IN CASE OF DIFFICULTY
POSSIBLE CAUSE(S)
• Incorrect or no power
• Speedpot set at zero
• Worn motor brushes
• Current limit set too low
• Max trimpot set too high
• I.R. Comp. trimpot set too high
• Loose speedpot connections
• Min. or Max. trimpots not properly adjusted
• Possible control failure
• Motor armature hooked up backwards
• Current limit trimpot improperly adjusted
MODEL SELECTION
OUTPUT VOLTAGE
0 - 12 VDC
0 - 12 VDC
0 - 12 VDC
0 - 24 VDC
0 - 24 VDC
0 - 24 VDC
0 - 36 VDC
0 - 36 VDC
0 - 36 VDC
SPECIFICATIONS
65E20
20 amps
5K Ω Ω Ω Ω Ω potentiometer or 0 to +10VDC input signal
200% for 10 seconds; 150% for one minute
adjustable100% to 200% of full motor load, up to continuous current rating (page 4)
barrier terminal block (12Ga. to a maximum 6 Ga.)
1% of base speed via adjustable I.R. Compensation trimpot
N/A
CONTINUOUS CURRENT
20 amps D.C.
40 amps D.C.
60 amps D.C.
20 amps D.C.
40 amps D.C.
60 amps D.C.
20 amps D.C.
40 amps D.C.
60 amps D.C.
65E40
40 amps
30 : 1
adjustable - 0 to 10 seconds
non-adjustable - 0.5 seconds
adjustable - 50 to 100% of base speed
adjustable - 30% of max speed
-10°C to +45°C (14°F to 113°F)
black anodized aluminum extrusion
approximately 1.6K Hertz
Current foldback at 80
4
CORRECTIVE ACTION
Install proper service
Rotate speedpot fully CW
Replace motor brushes
Adjust current limit trimpot CW
See "Trimpot Adjustments" - page 3-4
See "Trimpot Adjustments" - page 3-4
Secure all connections
See "Trimpot Adjustments" - page 3-4
Send to Dart Controls, Inc.
Reverse armature + and - leads
See "Trimpot Adjustments" - page 3-4
MODEL NUMBER
65E20-12
65E40-12
65E60-12
65E20*
65E40*
65E60*
65E20*
65E40*
65E60*
65E60
60 amps
o
C. heatsink temperature