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Input specification and terminal assignment
Screw terminal
No 1
Designation
INP A
Model
CXL221VHX
07 kHz
CXL221VJX
12 kHz
Table 2
Screw terminal 1:
Fast frequency input
NPN:
active for negative edge
Input resistance:
approximately 1 MOhm
Max. frequency:
7 kHz (pulse/pause: 1:1)
Low level:
0 ... 0,7 V DC
High level:
3 ... 30 V DC
PNP:
active for positive edge
Input resistance:
approximately 100 kOhm
max. frequency:
7 kHz (pulse/pause: 1:1)
Low level:
0 ... 0,7 V DC
High level:
4 ... 30 V DC
Screw terminal 2:
Slow frequency input
NPN:
active for negative edge
Input resistance:
approximately 1 MOhm
Max. frequency:
30 Hz (pulse/pause: 1:1)
Low level:
0 ... 0,7 V DC
High level:
3 ... 30 V DC
PNP:
active for positive edge
Input resistance:
approximately 100 kOhm
max. frequency:
30 Hz (pulse/pause: 1:1)
Low level:
0 ... 0,7 V DC
High level:
4 ... 30 V DC
Screw terminal 3, 4 and 5:
no function
Screw terminal 6:
Common GND connection for all inputs
Screw terminal 7:
(–) external power supply for the backlight option
Screw terminal 8:
(+) external power supply for the backlight option
(24 V DC ±20 %, 50 mA)
No 2
No 3 No 4 No 5 No 6
INP B
NPN
30 Hz
NPN
PNP
PNP
No 7
–
GND
BL
–
–
0 V DC
Backlighting(–)
Scope of delivery:
Digital display
Clamp
Front frame for screw mounting,
Panel cut-out 50 x 25 mm
Front frame for clamp mounting,
Panel cut-out 50 x 25 mm
Seal
Operating instructions
Installation:s
Use shielded wires for the frequency inputs so as to
obtain the maximum EMC resistance.
Note:
This product includes a lithium battery. Do not
open it by force, do not throw it in the fire.
Avoid temperatures below –20 °C and above
70 °C!
No. 8
BL
+
Backlighting (+)
5
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