Manual
40 Input Circuits
Switch Settings
The following switch settings are recommended for different input signal types.
Input Signal Type Input Terminals Switch Settings
CH1
+
-
1234567 8
a. Logic Signal, CMOS,
Pulse
9 8 off off off off on off off off
b. Open Collector or
Reed switch
9 8 off off off off on off on off
c. Namur Proximity
(set DC out to 8 volts)
11 9 off off on on on off off off
d. Switch or Reed Switch
with debounce circuit
(200Hz max)
9 8 off off off off on off on on
e. Coil (20mV P-P
minimum)
9 8 off on off off off off off off
f. Coil (low impedance)
22mV pp minimum
9 8 on on off off off off off off
General Specification
Switching Threshold: 2.5 Volts (except for input type c, e and f)
Maximum Input Voltage: 50V peak
Input Impedance
Input type a: 100K
Input types b & d: 10K
Input type c: 1K
Input type e: 100K
Input type f: 2.4K