Quick Check; Operation; Manually Changing The Stem Position - Samson TROVIS 5724-3 Mounting And Operating Instructions

5.5 Quick check

To test the electric actuator's ability to func-
tion, the following quick checks can be per-
formed:
Î Apply the maximum and minimum con-
trol signals (e.g. over the manual level in
TROVIS-VIEW).
Î Check the end positions of the valve.
Î Check the travel indication on the scale.
TROVIS 5725-3
Î Disconnect the power supply and check
whether the valve moves to the fail-safe
position.
EB 5724 EN

6 Operation

Immediately after completing mounting and
start-up, the valve with electric actuator is
ready for use.
WARNING
!
Form-fit version: crush hazard arising from
moving parts (actuator and plug stem).
Do not insert hands or finger into the yoke
while the valve is in operation.
NOTICE
!
Form-fit version: operation disturbed by a
blocked actuator or plug stem.
Do not impede the movement of the actuator
or plug stem by inserting objects into their
path.
6.1 Manually changing the
stem position
TROVIS 5724-3 only
A manual adjustment of the stem position
only makes sense when the power supply is
switched off as the stem position is deter-
mined by the actuator in closed-loop opera-
tion, meaning any manual adjustment would
be automatically corrected by the actuator.
The stem position is changed at the hand-
wheel:
Î Switch off the power supply.
Î Turn clockwise to extend the actuator
stem (approx. 4 turns for 1 mm travel).
Operation
27