12
LINEARIS
5.3.2
2-wire-current output 4-20 mA
Electrical connection
Connect terminal 54 and 55 according to the wiring diagram (see page 10). Use separate (shielded) wire with minimum diameter
of 0.5 mm² and a max. length of 1000 m.
Setup
Operate the current output via buttons „4“ and „20“. Assigning arbitrary positions for 4 mA and 20 mA is possible at any time. The
lower and upper current limit (4/20 mA) is programmed steady.
a) Assignment of end position 4 mA:
•
Approach end position;
•
press button „4“ more than 2 sec.;
•
release button „4“;
•
the end position is programmed and active at once.
b) Assignment of end position 20 mA:
•
Approach end position;
•
press button „20“ more than 2 sec.;
•
release button „20“;
•
the end position is programmed and active at once.
5.3.3
Gear disengagement
Vor Betätigen der Getriebeausrastung muss die Gewindespindel gegen selbstständiges
Verdrehen gesichert werden.
1. Switch off operating voltage of actuator.
2. Move lever (Auto/Manual) to position »Manual«. Flow of power between motor and
output shaft is interrupted.
3. This position serves for quick adjustments of the output shaft during adjustment work.
4. Turn the fi tting to the desired position (no need to disengage output and fi ttingshafts).
(Control cams of the position limit/auxiliary position switches and potentiometer turn
with it. Set positions are retained.)
5. Move lever (Auto/Manual) back to position »Auto«. Power fl ow between motor and
fi tting is restored.
6. Switch-on operating voltage of actuator.
To avoid the risk of overrunning the limit stop switches during manual operation, set the
limit positions of the fi tting mechanically. The actuator must not be electrically activated
when disengaged!
5.3.4
Hand wheel (option)
In the event of a power failure the actuator can be operated with the help of a hand wheel.
24V +
4....20mA
55
54
–
AUTO
HAND
ADVICE
!
CAUTION
