de Gier GW series Installation Manual page 14

INSTALLATION MANUAL
Potentiometer
14
4.6 Potentiometer (optioneel)
Application
The potentiometer kit is only intended to be used with GW motor gearboxes from De Gier
• The potentiometer has a maximum range of 10 turns and is available with the following resistance values: 0.5
kΩ, 1.0 kΩ, 2.0 kΩ, 5.0 kΩ and 10 kΩ;
• Operating temperature range: +1°C to +60°C.
Operation
The switch shaft (A) of the limit switch mechanism is driven by a toothed belt from the output shaft of the
motor gearbox. A gear set reduces the number of turns of the switch shaft to a maximum of nine turns of the
potentiometer shaft. Depending on the gear ratio, this gear set consists of two or three gears (if there are only two
gears, the bracket (G) and gear TW5 are not included).
Mounting
Use the following procedure to retrofit the potentiometer kit:
1. Remove the black plastic protective cover and the side plate of the motor gearbox to reveal the limit switch
mechanism and toothed belt;
2. Slide the toothed belt (B) off the plastic gear wheel (TW2);
3. Remove the retaining rings and the gear wheel (TW2) from the switch shaft (A);
4. Fit the gear wheel (TW3) on the switch shaft (A);
5. Loosen the two screws on the limit switch (C) and remove the limit switch;
6. Slide the terminal block (E) over the plastic bracket (F) and click them together under the limit switch (C);
7. Fit the potentiometer (D) and refit the limit switch (C), taking care to ensure it is fitted correctly;
8. Slide the gear wheel (TW4) onto the potentiometer shaft (D). Do not tighten this gear wheel yet.
9. Fit the gear wheel (TW5), if included, on the bracket (G); otherwise continue with step 12;
10. Fit the bracket (G) in place with the bolt (H) and lock washer (I), but do not tighten the bolt;
11. Fit the gear wheel (TW5) on the bracket (G) between the gear wheels (TW3 and TW4) and tighten the bracket.
The gear wheel (TW5) should be pressed very lightly against the other gear wheels. The gears should turn
smoothly and easily;
12. Refit the retaining rings and the gear wheel (TW2) on the switch shaft (A);
13. Slide the toothed belt (B) over the gear wheel (TW2);
14. Adjust the limit switch mechanism (see adjustment instructions in Section 4.5);
15. Adjust the potentiometer and secure the gear wheel (TW4) on the potentiometer shaft;
16. Fit the side plate and the black plastic protective cover.
4.7 I-DE Intelligent digital encoder (optional)
Application
The intelligent digital encoder (I-DE) is a multifunction position encoder which provides extremely accurate
information about the position of the GW motor gearbox. It has digital and analogue outputs. This position encoder
can easily be fitted in place of a conventional potentiometer.
More information about fitting, connecting and adjusting the I-DE can be found in the specific manual for the I-DE.
De Gier B.V., Westlandseweg 9, 2291 PG WATERINGEN, THE NETHERLANDS, Tel. +31 (0)174 292089, Fax +31 (0)174 295644, E-mail: sales@degier.nl
www.degier.eu
Version 1 – 2014 / 06 / 11