Alicat EPC Series Bedieningshandleiding - Pagina 5

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INPUT SIGNALS

Analog Input Signal

Standard 0-5 Vdc : Apply analog input to Pin 6 as shown on page 4.
0-5 Vdc is the standard analog input signal. Apply the 0-5 Vdc input signal to pin
6, with common ground on pin 3.
Optional 0-10 Vdc: If specified at time of order, a 0-10 Vdc input signal can be
applied to pin 6, with common ground on pin 3.
Optional 4-20 mA: If specified at time of order, a 4-20 mA input signal can be
applied to pin 6, with common ground on pin 3.
NOTE: This is a current sinking device. The receiving circuit is essentially a
250ohm resistor to ground.
CAUTION! Do not connect this device to "loop powered'" systems,
as this will destroy portions of the circuitry and void the
warranty. If you must interface with existing loop powered
systems, always use a signal isolator and a separate power supply.
Wiring your EPC Cable into a DB9 RS-232 or RS-485 adaptor
To use the RS-232 or RS-485 input signal, connect the RS-232 / RS-485 Output
Signal (Pin 5), the RS-232 / RS-485 Input Signal (Pin 3), and Ground (Pin 8) to
your computer serial port as shown below. (See page 7 for details on accessing
RS-232 / RS-485 input.)


9 Pin Serial Connection
Pin

6
5

4
DB9 to Micro-Fit Connection for RS-232 / RS-485 Signals
Please Note: DB9 adaptor drawings shown represent the face of the cable,
wiring ports at the back of the adaptor will be mirrored.
 
 
 
 
  
 
 
5
4
3
2
1
9
8
7
6
Serial Cable End
Function
Ground
Transmit
Receive
1
2
3
6
7
PC Serial Port
6 Pin Micro-Fit Connection
Function
Ground
Receive
Transmit
5
4
5
8
9
Pin
1
2
3