Dungs EMP-5 Скачать руководство пользователя страница 7

7 … 9

6 … 9

MC • Karl Dungs

, Inc.

 • EMP-5 • Edition 2017.05 • P/N 261483

Side Box Test #1: 

Connect the drive’s leads to the cor-

responding lead of a suitable current signal source (current 

calibrator). Apply power to the actuator, then turn on the 

current signal source (current calibrator). Adjust the current 

signal source (current calibrator) until the mA meter reading 

equals the desired zero point current (2 to 16 mA). Adjust 

the current signal source (current calibrator) until the mA 

meter reading equals the finish point current. With the de

-

sired finish point current applied, the actuator shaft should 

drive to the finish point. If the actuator fails this test, repeat 

the CP-9302-702 adjustment on page 4. Short the Violet/

White wire to the Violet wire; the actuator shaft should turn 

counterclockwise. Short the Violet/White wire to the Bluewire; 

the actuator shaft should turn clockwise. When you break the 

connection between the Violet/White and Violet wires, the 

shaft should return fully clockwise. If the side box fails this 

test, perform Test 2.

Actuator Test #2: 

If the side box test passes, then the actua-

tor can be tested. Disconnect the wires at terminals X, 2 and 

3. Jumper actuator terminal “X” to terminal 2; the actuator 

shaft should turn clockwise (CCW for reverese configuration). 

When the connection between terminals “X” and 2 is broken, 

the shaft should remain stationary. Then jumper terminal “X” 

to terminal 3; the shaft should turn counterclockwise (CW for 

reverese configuration).

Conclusion: 

1) If the side box test #1 fails but the actuator test #2 passes, 

then the side box is defective.  

2) If the actuator test #2 fails, then the actuator is defective.

3) If both tests fail, then the actuator is defective.  The side 

box must be tested on a functional actuator in order to 

determine whether or not it is defective.

Tech Tip #1:  There is no rectified circuit in the actuator’s 

shading windings. The voltage on the shading windings 

is about 30 VAC, and the voltage on the main windings is 

120 VAC. 

Tech Tip #2: 

 Maximum voltage to terminals 7 and 8 is 

24 VAC. During operation, the voltage at these terminals is 

about 12 VAC. 

Tech Tip #3: 

 For 0 - 10 VDC input control, the resistance 

and - leads is 10,000 ohms.

Tech Tip #4: 

 For 4 - 20 mA input control, the resistance 

and - leads is 250 ohms. 

Tech Tip #5: 

For 4 - 20 mA input control, the input control 

voltage on the + and - leads should be 1.0 VDC at 4 mA, 2.5 

VDC at 12 mA, and 5 VDC at 20 mA.

Tech Tip #6: 

 Across terminals 2 to X and 3 to X, the voltage 

should be 24 - 30 VAC and about 0.9 amps when actuator 

is powered.

Tech Tip #7: 

The black converter (side box) operates on 

24 VDC, and pulls its voltage from the shading windings.

Tech Tip #8: 

 The EMP has internal impedence protection. 

There is no need to electrically protect it with a fuse.

Tech Tip #9: 

 The amperage draw under locked rotor is the 

same.

Tech Tip #10: 

 The torque is the same at low temperatures, 

but the timing might be longer. 

Problem

#1: 

The actuator will not modulate; it will only remain at 0 deg, 

and then at some input the actuator will drive completely 

to 90 deg.  

#2: 

The actuator will not modulate, or modulation will be erratic.  

#3: 

The actuator will actuate on the opposite direction; with 

4 mA in, the actuator goes to high fire, and with 20 mA, it 

goes to low fire. Or, when the designated wires for HIGH 

fire override are made, it drives to LOW fire.

Possible Solution

#1: This problem can occur if the factory configuration (CCW 

rotation for 0 - 90 deg) is switched to REVERSE configura

-

tion (CW rotation for 0 - 90 deg), but only one set, rather 

than both sets, of terminals were not changed. Terminals 

7 and 8  AND 2 and 3 need to be reversed. 

#2: 

Verify that the low voltage input wires are not in the same 

conduit at the high voltage wires. Check jumper under 

side box and adjust pots if needed. 

#3: 

Verify that the input wires (the - and the +) are not reversed 

at the meter, the side box, or at the temperature controller. 

Testing

Technical Tips and Data

Troubelshooting

Содержание EMP-5

Страница 1: ...n be foreinstallingoroperating Keep theinstructioninasafeplace You find the instruction also at www dungs com If these instructions are not heeded the result may be personal injury or damage to proper...

Страница 2: ...ning 34 8 A locked rotor Grounded Input Grounding either or both input wires will not cause Fuse There is no internal fuse The EMP is impedence protected Model No Order No Travel Description Timing se...

Страница 3: ...e them off and safely stow away Replacing EMP 3 or EMP 4 with EMP 5 When replacing an EMP 3 or EMP 4 with an EMP 5 and if the high fire override is not used then follow the wiring schematic EMP 4 to E...

Страница 4: ...oltage to terminals input leads or to X 2 3 4 7 or 8 will permanently damage the motor Field Wiring Terminal Block Internal Wiring Low Voltage Leads for Driving Actuator 4 20 mAdc Controller Input Sli...

Страница 5: ...wise end of actuator rotation Each click of the cam represents about 3 change in operating point NOTE After turning the disc remove back plate and reposition the wiper it will need to be repositioned...

Страница 6: ...e mA input equals the desired finish point maximum position This is typically 20 mA 3 With the desired current input for maximum position typi cally 20mA the actuator will drive towards 90 degrees Onc...

Страница 7: ...ading windings The voltage on the shading windings is about 30 VAC and the voltage on the main windings is 120 VAC Tech Tip 2 Maximum voltage to terminals 7 and 8 is 24 VAC During operation the voltag...

Страница 8: ...7 05 P N 261483 Mounting holes 3 17 64 6 7 mm Dia 3 1 4 83 mm 4 3 4 121 mm 4 102 mm Shaft Dia 1 2 13 mm 2 1 4 57 mm 1 5 8 41 mm 2 1 4 57 mm 4 102 mm 2 51 mm 1 8 3 mm 7 1 4 184 mm 2 3 4 70 mm 2 1 4 57...

Страница 9: ...267191 AE 504 Paralleling Relay for driving up to 3 actuators with one input signal 269237 AM 132 5 16 hole ball joint linkage swivel connector for non parallel linking 269232 AM 122 5 16 hole straigh...

Отзывы: