Val Controls IHP24 - Adjustment of Positioning Speed; Adjustment of Acceleration and Deceleration Times; Adjustment of Slow Open and Slow Close Dist

DHP-UM-028
Val Controls A/S • Sallingsundvej 5 • DK-6715 Esbjerg N • Tel. +45 7547 0600
vc@valcontrols.com • www.valcontrols.com
Revision: 1
8/9
1. Go to the advanced menu on the left side of the screen on the home tab in ValConnect.
2. Go to the Proportional regulator and set speed to:
a. Speed open: 15%
b. Speed close: 15%
3. Press write at the top of the screen.
4. Now test the opening and closing time.
5. If the speed is to slow increase the speed and if the speed is to fast reduce the speed.
6. Continue to the correct speed is reached.
3.2 Adjustment of positioning speed
7. Go to the advanced menu on the left side of the screen on the home tab in ValConnect.
8. Go to the Proportional regulator and set to:
a. Slow open dist: 20%
b. Slow close dist: 20%
c. Slow speed open: Set to half of Speed open found above
d. Slow speed close: Set to half of Speed close found above
9. Press write at the top of the screen.
10. The valve is now opened from 0 to 50%, from 30% the valve will now move slowly towards
50%, this is the speed at which the valve is positioned precisely when opening, if it is too
slow, the Slow speed open % value is increased, if it is too fast, the % value is reduced.
11. The valve is now closed from 100% to 50% from 70% the valve will now move slowly
towards 50% this is the speed at which the valve is positioned precisely when closing if it is
too slow the Slow speed open % value is increased if it is too fast the % value is reduced.
3.3 Adjustment of acceleration and deceleration times.
As a starting point, these are set low as it provides a more precise valve regulation.
1. Acceleration open is increased if you want a softer start to the valve movement when
opening.
2. Acceleration close is increased if you want a softer start to the valve movement when
closing.
3. deceleration open is increased if you want a softer braking of the valve movement when
opening.
4. deceleration close is increased if you want a softer braking of the valve movement when
closing.
Note: Increasing these times results in a slower valve and on fast systems these times should be kept
to a minimum.
3.4 Adjustment of Slow open and Slow close dist.
1. Go to the advanced menu on the left side of the screen on the home tab in ValConnect.
2. Go to the Proportional regulator and set to:
a. Slow open dist: 2%
b. Slow close dist: 2%