Pneumatic Connections; Electrical Connections; Initialisation And Commissioning - GEM 1434 mPos Installation, Operating And Maintenance Instructions

4

Pneumatic connections

3
2
1
Connec-
Designation
tion
Air supply connection P (max.
1
10 bar)
Working connection for
2
process valve A1
Venting connection R with
3
integrated check valve
Housing ventilation with
E
integrated check valve
* only relevant for exhaust air duct and/or increase of
protection class
Max. air supply 8/10 bar!
5

Electrical connections

2
X1
3 5
1
4
Connection Pin Signal name
1 U , 24 V DC supply voltage
v
I+ / U+, 4-20 mA/0-20 mA/0-10 V
2
(set value input)
X1
3 I- / U- GND
A-coded
I+ / U+, 4-20 mA/0-20 mA/0-10 V
M12 plug
4
(actual value output – optional)
U , initialisation 24 V DC,
V
5 initialisation is started by an impulse
signal t ≥ 100 ms
For connection cables >30 m,
take precautionary measures
against surge voltage.
1434 µPos
E
Connection
size
M5
M5
M6 x 0.75*
M6 x 0.75*
2
X3
1 5 3
4
X1
X3
In the version with external travel
sensor:
X3 is only required in
combination with an external
travel sensor system.
Connection Pin Signal name
1
2
X3
A-coded
3
M12 socket
4
5
Earth the positioner housing
(using mounting bracket).
Take ESD protective
measures when mounting the
potentiometer.
Risk of cable break!
® Damage to the device.
Turn electrical connections
max. 360°.
X1
6 Initialisation and
commissioning
If the GEMÜ 1434 Pos is delivered
X3
fully mounted to a valve ex works,
it is already preset at the factory
(at a control pressure of 5.5 – 6 bar
without operating pressure) and
is therefore ready for operation.
Reinitialisation (see chapter 7.2)
is recommended if the system is
operated under a diff erent control
pressure or if the mechanical end
positions have been changed (e.g.
seal replacement on the valve
or actuator replacement). The
initialisation is retained even in the
event of voltage cutoff .
24 / 32
UP+, output potentiometer supply
voltage (+)
UP, input potentiometer wiper
voltage
UP-, output potentiometer supply
voltage (-)
n. c.
n. c.
CAUTION
2
3 5
1
4
max. 360°