Autonics LA8N Series User manual

J-4
Specications
Features
DIN W48×H24mm, Indication only, LCD counter
● Upgraded features
Voltage input and backlight model,
subtraction and decimal point setting functions
● No additional power due to internal battery
● Singal input method: No-voltage input, voltage input, free voltage input
● Screw terminal type(attaching terminal cover)
● LCD display
● IP66 protection structure
Input type
Backlight
Power supply
Size
Digit
Item
Ordering information
N No-voltage(Small signal) input
V voltage input
F Free voltage input
No mark None
L Backlight function
B Internal lithium battery
N DIN W48×H24mm
8 99999999(8digit)
LA LCD Counter
Please read “Caution for your safety” in operation
manual before using.
Model LA8N-BN LA8N-BN-L LA8N-BV LA8N-BV-L LA8N-BF
Digit 8digit(Count up, down: -9999999 to 99999999 / Count up mode: 0 to 99999999)
Digit size W3.4 × H8.7mm
Display method LCD Zero Blanking type(Character height size: 8.7mm)
Operation method Count up, down mode Count up mode Count up, down mode Count up mode Count up mode
Power supply
Built-in battery
Battery life cycle Approx. over 7 years at 20℃
Backlight power supply - 24VDC±10% - 24VDC±10% -
Input method No-voltage input Voltage input Free voltage input
Count input
Residual voltage: Max. 0.5VDC
Short-circuit impedance: Max. 10kΩ
Open-circuit impedance: Min. 750kΩ
"H" level voltage: 4.5-30VDC
"L" level voltage: 0-2VDC
"H" level voltage: 24-240VAC
/6-240VDC
"L" level voltage:0-2VAC/0-2.4VDC
RESET input No-voltage input Voltage input No-voltage input
Min. signal width UP/DOWN, RESET input:
Min. 20ms
RESET input:
Min. 20ms
UP/DOWN,
RESET input:
Min. 20ms
RESET input:
Min. 20ms RESET input: Min. 20ms
Max. counting speed 1cps / 30cps / 1kcps 20cps
External set switch SW1
※1
, SW2
※2
, SW3
※3
SW1
※1
, SW3
※3
Insulation resistance Min. 100MΩ(at 500VDC megger)
Dielectric strength
※4
2,000VAC 60Hz for 1minute
Vibra-
tion
Mechanical 0.75mm amplitude at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 1 hour
Malfunction 0.3mm amplitude at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 10 minutes
Shock Mechanical 300m/s2(Approx. 30G) in each of X, Y, Z directions for 3 times
Malfunction 100m/s2(Approx. 10G) in each of X, Y, Z directions for 3 times
Enviro-
nment
Ambient
temperature -10 to 55℃, storage: -25 to 65℃
Ambient
humidity 35 to 85%RH, storage: 35 to 85%RH
Protection IP66(When using waterproof rubber for front panel)
Accessory Mounting bracket, Rubber waterproof ring
Approval
Weight
※5
Approx. 96g(Approx. 50g)
※1. SW1 is the front panel RESET key enable/disable set switch. ※2. SW2 is the max. counting speed set switch.
※3. SW3 is the decimal point set switch.
※4. No-voltage input, voltage input: between terminals and the case / Free voltage input: between the free voltage input
terminal and the RESET input terminal, between terminals and the case.
※Environment resistance is rated at no freezing or condensation.
※5. This weight is with packaging and the weight in parentheses is only unit weight.
LA8N Series
※A shaded ( ) part is upgraded or added function.
LA B N 8 N - - L
Upgrade

J-5
(A)
Photo
electric
sensor
(B)
Fiber
optic
sensor
(C)
Door/Area
sensor
(D)
Proximity
sensor
(E)
Pressure
sensor
(F)
Rotary
encoder
(G)
Connector/
Socket
(H)
Temp.
controller
(I)
SSR/
Power
controller
(J)
Counter
(K)
Timer
(L)
Panel
meter
(M)
Tacho/
Speed/ Pulse
meter
(N)
Display
unit
(O)
Sensor
controller
(P)
Switching
power
supply
(Q)
Stepping
motor&
Driver&Controller
(R)
Graphic/
Logic
panel
(S)
Field
network
device
(T)
Software
(U)
Other
※1: Terminal 2 and 5 are connected inside. (Non-isolated)
※Use reliable contacts enough to flow 5㎂ current.
Input type No-backlight Backlight
No-voltage
input
type
●LA8N-BN※1●LA8N-BN-L
※Terminal (1, 2, 3) and (4, 5) are insulated inside.
Voltage
input
type
●LA8N-BV※1●LA8N-BV-L
Free voltage
input type
●LA8N-BF
※Terminal (1, 2) and (4, 5) are insulated inside.
-
123 4 5
SIGNAL
INPUT
RESETUP/DOWN
123 4 5
RESET
+ -
24VDC
BACKLIGHT
SIGNAL
INPUT
+ -
123 4 5
4.5-30VDC
SIGNAL
INPUT RESET
UP/DOWN
+
-
+
-
123 4 5
SIGNAL
INPUT RESET
4.5-30VDC 24VDC
BACKLIGHT
123 4 5
6-240VDC
SIGNAL INPUT
RESET
24-240VAC 50/60Hz
+ -
~
!
!
Compact LCD Counter
Connections
● Bracket ● Panel cut-out
48
24
36
Min. 37
Min. 55
45 +0.6
0
22.2 +0.3
0
22
544
Dimensions (unit: mm)
● Solid-state input ● Contact input
※
When power is applied to terminal No and , input terminal
circuit can be broken and a malfunction can occur.
(NPN output, PNP output, PNP open collector output type
sensor cannot be used.)
※ and are connected inside.
※ Please use reliable contacts enough to ow
3VDC 5㎂ of current.
Input connections
No-voltage input (Standard sensor: NPN open collector output type sensor)
SIG. INPUT
RESET
3V
1.2㏀1.2㏀
560㏀
0V
[Counter]
Main circuit
SIG.
INPUT
RESET
+V
12-24VDC +
-
3V
1.2㏀1.2㏀
560㏀
OUT
0V
[Counter][Sensor]
Main circuit
※ For backlight function model, the input terminals are no. , and the GND terminal is no. .

J-6
● Solid-state input ● Contact input
※ Please use reliable contacts enough to ow
3VDC 5㎂ of current.
※ For backlight function model, the input terminals are no. , and the GND terminal is no. .
※ AC type proximity sensor cannot be used as the source of
count input signals.
※ Input terminal( , )and reset terminal ( , )are insulated
inside.
※ It is not possible to reset with AC power or DC power.
※ When relay contact is used as the source of RESET signal,
please use reliable contacts enough to ow 3VDC 5㎂ of
current.
Voltage input (Standard sensor: PNP open collector output type sensor)
Free voltage input
SIG. INPUT
RESET
20㏀4.7㏀
[Counter]
Main circuit
[SIG. INPUT]
[RESET]
3V
3V
1.2㏀1.2㏀
1㏀
560㏀
560㏀
[Counter]
6-240VDC 24/240VAC
Main circuit
Set switch
1
Front panel
Enable Disable
2
Front panel
1cps
30cps1kcps
SW1(
1
Switch )
SW1 is a switch to Enable/Disable
the front panel RESET key.
※Factory default: Enable
SW2(
2
Switch )
SW2 is a switch for setting
max. counting speed.
※Factory default: 1cps
(Free voltage input type:
20cps is fixed)
1
2
3V
560㏀
4.5-30VDC
SIG.
INPUT
RESET
+V
12-24VDC +
-
OUT
0V
[Sensor]
20㏀4.7㏀
[Counter]
Main circuit
3V
560㏀
+ -
LA8N Series
1
SIGNAL INPUT
(Fig. 1)
RESET
AC type
proximity
234 5
~!
100-240VAC
<Example of wrong connection> <Example of correct connection>
SIGNAL INPUT RESET
1234 5
~
!
100-240VAC
(Fig. 2)
Relay
AC type proximity
Input from AC type proximity sensor
In case of free voltage input type, do not connect AC proximity sensors instead of a switch as shown in the gure 1.
It may cause malfunction due to sensor's leakage current. Connect a relay as shown in the gure 2.

J-7
(A)
Photo
electric
sensor
(B)
Fiber
optic
sensor
(C)
Door/Area
sensor
(D)
Proximity
sensor
(E)
Pressure
sensor
(F)
Rotary
encoder
(G)
Connector/
Socket
(H)
Temp.
controller
(I)
SSR/
Power
controller
(J)
Counter
(K)
Timer
(L)
Panel
meter
(M)
Tacho/
Speed/ Pulse
meter
(N)
Display
unit
(O)
Sensor
controller
(P)
Switching
power
supply
(Q)
Stepping
motor&
Driver&Controller
(R)
Graphic/
Logic
panel
(S)
Field
network
device
(T)
Software
(U)
Other
Counter operation mode
●LA8N-BN/LA8N-BV model
※SIGNAL INPUT: Counting input,
UP/DOWN: Counting instruction input
※UP/DOWN as "L" is count up (UP)
UP/DOWN as "H" is count down (DOWN)
※The meaning of "H" and "L"
●LA8N-BN-L/LA8N-BV-L/LA8N-BF model
※ should be over 20ms of min. signal width. If it is below 20ms, it may cause counting error.
RESET
SIGNAL
INPUT
Counting
value
0
1
0
1
2
3
4
99999998
99999999
H
L
H
L
0
1
2
1
0
-1 -2 -1
01
L
H
L
H
SIGNAL
INPUT
UP/
DOWN
Counting
value
Voltage input No-voltage input Free voltage input
H 4.5-30VDC Short 24-240VAC/6-240VDC
L 0-2VDC Open 0-2VAC/0-2.4VDC
※Change SW3 setting after removing the case.
※Supply RESET signal (front panel or terminal RESET), after setting SW2, SW3 during operation.
SW3 is a switch for decimal point position.(※Factory default:
No decimal point)
+
LITHUM BA
3V
2
ON
1
SW3 Decimal point
2
ON
1
Not use decimal point
2
ON
1
)0
2
ON
1
)00
2
ON
1
)000
SW3
Case detachment and battery replacement
①
● Case detachment ● Battery replacement
※ Hold up Lock part toward ①, ② of the product with
the tool and pull toward ③ to detach the case.
When using the tools, be careful not to be wounded.
①
③
③
②
1. Detach the case.
2. Push the battery and detach it toward ①.
3. Insert a new battery with correct alignment of polarity
pushing it toward opposite of ①.
※ The battery is sold separately. Please replace a battery
by yourself.
※ Do not burn up or disassemble the lithium battery.
Compact LCD Counter