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Installation - 3
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FLT Output
INH Input
B) FLT Example with Multiple Units
FLT Output
INH Input
Switch
(Normally
Open)
INH Common
INH Input
A) INH Example with One Unit
+ - +
FLT
INH
. . . .
FLT
INH
NOTE: Connectors
are removable
1 2 3 4
1 2 3 4
1 2 3 4
. . . .
+ - +
Figure 3-4. FLT/INH Examples
B) Digital Interface Circuits
A) Relay Circuits
FLT INH
. . . .
NOTE: Connectors
are removable
+ - +
Digital Input
Port 2
Relay Driver
Ports 0, 1, 2
(contains internal
clamp diodes for
inductive flyback)
Digital Output
Ports 0, 1, 2
TTL, AS, CMOS, HC
+16.5V Max.
Coil Current
0.25A Max.
1 2 3 4
Figure 3-5. Digital I/O Examples