Beckwith Electronics

Hamburg, Illinois 62045
(618) 232-1139

(618) 232-1172 fax

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Hurst Manufacturing


Discontinued for reference only

MODEL EPC-015
FEATURES:
4 Decade frequency/count display
Operation from a single 6 to 24 VDC supply
All control features of EPC-016
1 Amp per phase motor drive capability
Compact size: 1 " x 3.5" x 6"
Hand-Held Controller with Step Speed/Count Display

General Description

This is a general purpose hand held controller with user selectable step frequency or step count display. It operates from a single external 6-24 VDC power supply to drive four phase stepping motors requiring up to 1.0 amp per phase.

Application Information

Motor Connections
Motor phases 1 thru 4 are connected to the terminal block locations 1 thru 4 in sequence and the motor phase common leads are connected to terminals 5 and 6. The standard Hurst color code and switching sequence is:

PhaseColorTerminal
Switching Sequence
CW
Rotation
Ø4
White
Ø3
Black
Ø2
Blue
Ø1
Red
CCW
Rotation
1 0 1 0
1 0 0 1
0 1 0 1
0 1 1 0
1 = on, 0 = off
1red1
2blue2
3black3
4white4
commonblue/white5
commonblack/white6
 
 
 
 

Power Supply Connections
The D.C. supply is connected to terminals 7 and 8. Terminal 7 is the circuit common and terminal 8 is the positive voltage.

Switch Operations
ON/OFFDisconnects the incomming D.C. Supply voltage.
ENABLE/DISABLE    Disables the output drivers.
CD/CCWDetermines the direction of rotation.
RUN/HOLD/JOGThis three position switch determines the controller's mode of operation. In the center position the motor remains in the holding mode with two phases energized. In the run position the motor steps continiously. The jog position is a monemtary contact which generates one step with each operation.
DISPLAYSelects either the speed (step frequency in pulses per second) or step count to be displayed.
RESETResets the step counter to zero.
SPEED ADJUSTSpeed adjustment from aproximately 5 to 400 pulsed per second.

Specifications
SUPPLY VOLTAGE6-24 VDC filtered supply
SUPPLY CURRENT100 mA plus motor current
PHASE DRIVERS1.0 A @ 24 VDC
STEP FREQUENCY ACCURACY    + (0.5% plus one digit)
STEP COUNT ACCURACY+ 1 count
DISPLAY4 digit led multiplexed
DIMENSIONS1" x 3.5" x 6"