Type CXE/AV(E)
for 1 ~ 230 V and 2 ~ 400 V
Power from the mains is connected to terminals L1, N and PE.
Potential separation between the control voltage connections and line connection by internal trans-
formator.
Type CXG-24AV(E)
for 24 V DC
Connection for voltage supply to terminals (+) and (-).
Danger due to electric current
•
Only PELV current sources which ensure safe electrical isolation of the operating voltage in
accordance with IEC/DIN EN 60204-1 must be used.
•
No potential separation between voltage supply and control voltage connections!
5.4
Signal input or sensor connection (E1, E2)
The unit has two analog inputs: Analog In 1 =
“
E1
”
and Analog In 2 =
“
E2
”
The connection is independent of the programmed operating mode and from the sensor signal
employed.
•
When connecting
passive
temperature sensorsTF.. (KTY81-210) or PT1000 at terminals
“
E1
”
and
“
T
”
or
“
E2
”
und
“
T
”
must be paid attention to no polarity.
For a high interference immunity a capacitor must be connected directly to the sensor (1 nF
parallel). With temperature sensors type TF.. (KTY81-210) a capacitor is integrated.
•
When connecting
aktive
sensors at the terminals
“
E1
”
and
“
GND
”
or
“
E2
”
and
“
GND
”
attention must
be paid to correct polarity, a 24 V DC power supply is integrated.
•
For sensors in two-wire-technology (4 - 20 mA signal), the connection is made on the
“
E1
”
and
“
24 V
”
or
“
E2
”
and
“
24 V
”
,
“
GND
”
terminal is omitted.
Danger due to electric current
Never apply line voltage to analog inputs!
5.5
Control outputs 0 - 10 V (A1, A2)
The analogue outputs can be used to activate a speed controller with 0 - 10 V input for example. Fans
with integrated controller and 0 - 10 V input can be activated directly.
•
Analog output 1 (terminals A1 - GND)
–
Controlled 0 - 10 V output for control circuit 1 (factory setting function
|
2A
|
).
•
Analog output 2 (terminals A2 - GND)
–
For operation with one control circuit: constant v10 V e.g. for supply of an external
potentiometer (function factory setting
|
1 A
|
).
–
For operation with a second control circuit: controlled 0 - 10 V output for control circuit 2 (function
initial setting
|
8 A
|
).
Other functions can be assigned if necessary (
Operating Instructions / IO Setup).
Danger due to electric current
It is not permissible to connect outputs of several devices to each other!
5.6
Voltage supply for external devices (+ 24 V, GND)
A voltage supply is integrated for external devices e. g. a sensor (max. current load
technical data).
The tolerance of the output voltage is for 230 V and 400 V version -30 % - +20 %.
For the 24 V DC version directly depending on the supply voltage.
Incase of overload or short circuit (24 V - GND), the external power supply is shut down (multi-fuse).
The device performs a RESET and continues operation.
•
It is not permissible to connect voltage outputs of several devices to each other!
•
It is not permissible to connect voltage outputs in the device to each other!
Operating Instructions
UNIcon MODBUS Master
Electrical installation
L-BAL-E207-GB 1723 Index 003
Part.-No.
10/114