Technical Data; General Data - Pepperl+Fuchs Zahler KC-LCD-24-24VDC Manual De Instrucciones

3 Description
3.1 General
Pulse counter, fast and slow (bounce-free) input,
electronic or manual Reset possible.
Scale factor, factory-programmed
7 digit LCD display, height 8 mm
Counting range 0 ... 9999999, no decimal point
Data retention: EEPROM
DIN housing 48 x 24, dark grey
Power supply 10 ... 30 V DC, max. 25 mA
3.2 Connection and functions
Terminal assignment
Function and terminal assignment
(the bold indications correspond to the text on the device)
Ter- Function
minal
1 10 – 30 V DC, Supply voltage +Ub
2 GND, 0 V DC
3 GND, 0 V DC
4 INP PNP, fast counting input: the counter
increments the value by one at each
bounce-free voltage pulse > 3,5 V at ter-
minal 4
5 INP NPN, slow counting input: the counter
increments the value by one at each volt-
age drop to < 2 V at terminal 5
6 RESET MANUEL ENABLE
Reset key enable input: when terminal 6 is
connected to GND or to 0 V (< 2 V), the
key allows resetting the counter to 0
7 RESET, Reset input, when terminal 7 is
connected to GND or to 0 V (< 2V), the
counter is reset to 0 (electronic Reset)
8 n. c. is not used with the standard counter
3.3 Function of the front key
Pressing the red front side key resets the counter to
0. This function is only active when input 6 is set to
0 V or connected to GND.
4

Technical data

4.1 General data

Display: 7 digit LCD display,
height 8 mm
Supply voltage:
10 ... 30 V DC, max. 25 mA
Undervoltage: Message for Ub< 8 V: PO-FAIL
and data back-up
Switching-on delay:
500 ms
Inputs: PNP counting input: fast input, PNP
switching
(max. 8 kHz)
NPN counting input: slow input,
NPN switching (mechanical contact)
(max. 48 Hz)
Reset key enable input: static NPN
input,
Reset by edge-triggered NPN input
(min. 20 ms)
The maximal frequency/pulse frequency is only
reached with a pulse-pause ratio of
1:1.
Switching level:
Low 0 ... 2 V DC
High 3.5 ... 30 V DC
switching threshold approx. 2.7 V
Input resistance:
10 kOhm
Scale factor: 1 ... 4095 (factory-set)
Switching-on delay:
500 ms
Data retention: EEPROM
Operating temperature:
-20 ... +65 °C
Storage temperature:
-25 ... +75 °C
Weight: 40 g
EMC: Noise emission EN55011 Class B
Noise immunity EN61000-6-2
Connections: 8 screw terminals, pitch 5.08 mm
Housing: Front panel mounting housing
DIN 43700, 48 x 24, dark grey,
Ral 7021
Protection: IP65 on the front, IP20 on the rear
Cleaning: Clean the front side only with a soft
cloth moistened with water
Shock resistance:
EN60068-2-27 (device switched off)
100 g /XYZ
EN600068-2-29 (device in opera-
tion) 10 g /XYZ
Vibration resistance:
EN60068-2-6
10 ... 55 Hz/ 1 min / XYZ
30 min in each direction