AMETEK 2120 PLC Interface Module - Manual (Page 44)

40 Installation and Programming Manual
Chapter 4: Programming
B) Select voltage or current output
1. Select the function key.
The monitor displays “F-----”
2. Enter function number X04. Select the enter key.
The monitor displays the current function value.
0 = voltage output
1 = current output
3. Leave current value or change. Select enter key.
X04
Enter
0 or 1
C) Scaling analog output
The analog output is scaled by programming a minimum position or velocity value
followed by the analog output value required at that position or velocity. A maximum
position or velocity value is then programmed followed by the analog output required at
that position/velocity.
The analog output value specifi ed can be any value within the following allowable range:
Voltage -10 VDC to +10 VDC
Current 0mA to 20mA
The analog output will stop changing upon reaching the minimum and maximum values
programmed. This allows selection of a nonstandard output like 2 to 8 VDC or 10 to 20
mA.
The position/velocity range over which the analog output develops can be any portion of
the total change seen by the Interface Module. This allows selection of a 2 to 8 VDC
output of velocity scaled between 500 and 2000 RPM. The analog output will be 2 VDC
for any RPM value below 500 RPM and will rise from 2 VDC to 8 VDC as RPM
increases from 500 to 2000 RPM. The analog output will stay at 8 VDC if RPM increases
above 2000 RPM.
Example: Program analog output channel 1 for 2 to 8 VDC over 500 to 2000 RPM
velocity change.
1. Select Analog output of velocity as described earlier under step A.
2. Select Voltage output as described earlier under step B.
3. Select function key.
The monitor displays “F----”.
(F)
(F)