IX34510a_e.doc / Apr-11
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1.1.
Power Supply
The unit accepts DC supply from 17 V to 30 V when using terminals 1 and 2. The consumption
depends on the level of the supply voltage
(typical 130mA at 30V or 190mA at 17V, plus current taken from aux. output).
For AC supply the terminals 0 VAC, 115 VAC or 230 VAC can be used.
The total AC power is 7.5 VA.
The diagrams below show a dotted line for grounding to PE.
This connection is not really necessary, neither for safety nor for EMC. However, for some
applications, it may be desirable to ground the common potential of all signal lines.
When using this earthing option, please observe:
All terminals and potentials marked “GND“ will be earthed.
Please avoid multiple earthing, i.e. when you use a DC power supply where
the Minus is already connected to earth etc.
1.2.
Aux. Voltage Output
Terminal 7 provides an auxiliary output of 24 VDC / 120 mA max. for supply of sensors and
encoders.
1.3.
Control Inputs A, B and C
With models , input A is used to activate a serial transmission (rising edge, see 4.5.2).
Input B is not in use.
Input C operates as a Set / Reset input (static function, active "HIGH", see 5.3).
In the basic setup menu, the inputs can be configured to PNP (signal must switch to +) or to
NPN (signal must switch to -). This configuration is valid for all three inputs at a time.
The factory setting is always PNP.
Where NPN setting is used, please observe:
Open NPN inputs will always represent a logical HIGH state
Consequently, Input C has to be connected to GND externally to allow normal
operation. If unconnected, the unit would be kept in a continuous Reset state.
With models IX 348, also Input A must be tied to GND, and opening this connection will
generate a rising edge to start a serial transmission
Where your use 2-wire NAMUR type sensors, please select NPN, connect the negative
wire of the sensor to GND and the positive wire to the corresponding input.
DA6-SSI/A-U
