Bernard Controls Range EZ Serie Instructions De Mise En Service page 11

INPUT POSITION SIGNAL FOR POSITIONNER (EZxxxx KL XX 123 A0 only)
EZ LOGIC actuators with reference EZxxxx KL XX 123 A0 can perform control functions in response
to a control signal (e.g. 4 – 20 mA). No prior set-up is required as the signal is automatically adjusted
to the 0 to 100% positions.
Impedance of 15/16 input:
• On 0/4-20mA signal : 162 Ohms
• On 0-10VDC signal : 4052 Ohms
POSITION FEEDBACK (EZxxxx KL XX 123 A0 only)
EZ LOGIC actuators with reference EZxxxx KL XX 123 A0 can incorporate an analog position signal.
No prior set up is required as the signal is automatically adjusted to the 0 to 100% positions. The
default signal is in 4-20 mA (4 mA at 0% and 20 mA at 100%)
The external supply of the current loop can be in series (2-wire connection allowing 4/20mA signal
only) or in parallel (3-wire connection allowing 4/20 or 0/20mA)
17
18
A
19
20
Position signal 4/20 mA
To obtain a 0-10VDC position signal, set the position signal (according to chapter 5.4) into 0-20mA
and put a 500 Ohms resistor in series. The voltage has to be read on both sides of the resistor.
-
17
500
18
Ohms
19
+
20
Position signal 0/10 VDC
Max total impedance of the current loop: 750 Ohms with 24VDC supply
-
15
+
16
-
12 - 30V
+
-
0-10V
24 - 30V
+
4 - 20 mA
0 - 20 mA
0 - 10 V
17
18
19
20
Position signal 0/20 or 4/20 mA
English
-
A
12 - 30V
+
11