Electrical Connection - Samson 2488 N Mounting And Operating Instructions

Mounting and start-up

5.4 Electrical connection

Î See Fig. 5 and Fig. 2
WARNING
!
Upon installation of the electric cables, you
are required to observe the regulations con-
cerning power installations according to
DIN VDE 0100 as well as the regulations of
your local power supplier.
Use a suitable power supply which guaran-
tees that no dangerous voltages reach the
device in normal operation or in the event of
a fault in the system or any other system
parts.
Connect the actuator to the electrical network
L
only after the power supply is first switched
off. Make sure the power cannot be switched
Ce
on unintentionally.
A power supply of 230 V (10 %) or 24 V
N aL eL
(10 %), 50 Hz is required (u EB 5857 for
more details).
WH BN GN
Î Connect the electric actuator using the
three-wire connecting cable (see Fig. 5).
If voltage is applied to the white and
green wires, the actuator motor retracts
the actuator stem (18). The restriction
stem (12) is pushed upward by the
spring (15), causing the flow rate to rise.
In contrast, a control signal applied to
the white and brown wires causes the ac-
tuator stem to extend. The restriction stem
(12) is pushed downward by the spring
(15), causing a lower flow rate.
18
eL
aL
Ce
Three-step version
L
Ce
N aL eL
WH BN GN
Version with positioner
24 V, 50 Hz 0...10 V
_
L N
BN BK YE
eL Actuator stem retracts
aL Actuator stem extends
Note: The interference suppression capacitors
Ce in the output circuit of the connected control-
ler must not exceed a value of 2.5 nF to ensure
the proper functioning of the actuator.
Fig. 5: Electrical connection
eL
aL
Ce
0...10 V
_
+ +
GN RD OG
EB 3136 EN
24 V, 50 H
L N
BN BK