User Manual V 1-4.XX User guide

Using the L Option 5-15
Requirements for the
24V AC/DC Interface Board
Requirements (L8E)
Figure 5.8 shows the wiring diagram for the L8E Option board.
Figure 5.8
L8E Option Board Wiring Diagram
Circuits used with the L8E Option board must be able to operate with
high = true logic.
Both AC and DC external circuits in the high state must generate a
voltage of +20 to +26 volts and source a current of approximately 10
mA for each input.
Typical
TB3
Common
+24V
19
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
1.87k
280
140
1.0
User Supplied
24V AC/DC
ENC
RET
ENC
12V
Typical
12V
681
173
576
5V
J1/J2
Current
Limit
Feedback
0.5A
0.001
A
AB
B
2200p f
255
In the low state, this type
of external circuit:
Must generate a voltage
of no more than:
And, leakage current
must be less than:
DC 8V DC
1.5 mA into a 2.5K ohm
load
AC 10V AC
2.5 mA into a 2.5K ohm
load