User Manual

AC (24V) Output Module6
Publication 17715.41 - May 1996
Important: You can use an AC (24V) Output Module (cat. no.
1771-OND) to directly drive terminals on an AC (24V)
Input Module (cat. no. 1771-IND) (Figure 3). You can
also use a 1771-OND Output module to drive an AC
(24V) Input Module (cat. no. 1771-IN) but you must
connect a 250 ohm, 5W resistor between the output
terminal and L2 (common) as shown in Figure 3. Use
the same ac power source to power both modules to
ensure proper phasing and prevent module damage.
Figure 3
Driving
an Input Module with an Output Module
Note: 1771OND output voltage
range is 1060V ac. However, the
onstate voltage range of the
1771IND is 1929V ac.
L1
24V ac High
L2
ac Low
(Cat. No. 1771IN)
Note: 1771OND output voltage
range is 1060V ac. However, the
onstate voltage range of the
1771IN is 1228V ac.
L2
ac Low
250 ohm 5W
resistor
L1
24V ac High
L2
AC (24V)
Input Module
AC (24V)
Output Module
(Cat. No. 1771OND)
AC (24V)
Input Module
(Cat. No. 1771IND)
AC (24V)
Output Module
(Cat. No. 1771OND)