Dynamatic 15-539-14 Instructieblad - Pagina 7

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Torque Limit Modification PCB 15-444-2

If you have purchased a complete controller this section may be passed over and you may proceed to

1. Place the Main PCB in front of you with the long dimension in a horizontal position and the

terminal strip to the left.

2. Remove the DIP switch by pulling it straight out of the receptacle, RECP 1. Then, peel the adhesive-

backed label off the other half of RECP 1.

3. Insert the arrow type locking head of the four nylon stand-offs supplied into the four 0.188"

diameter holes in the main PCB and press in. The tabs will snap out to lock the stand-offs

permanently in position.

4. Hold the modification PCB assembly over the stand-offs with the ribbon connector toward you

and insert the ribbon connector plug into RECP 1. Be careful to see that all 16 pins are started

properly into the receptacle before pressing the plug in.

5. Align the holes in the modification PCB assembly over the stand-offs and press over the tapered

posts until the locking flanges snap out to lock the board in position.

General Description

For some variable speed drive application, it is necessary to limit the torque available to a machine in

order to prevent damage to the machine itself or its process. The Torque Limit modification provides an

"override" feedback signal which indirectly limits the induction motor torque (current) to a preset