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LC4H-S Electronic Counters (with pre-scale function)

Electronic counters with pre-scale function connectable to an AC two-wire sensor

6-digit type
6-digit type
4-digit type
4-digit type
11 pin type
11 pin type
Screw terminal type
Screw terminal type
UL C-UL Recognaized CE Marking

UL/C-UL , CE Approved

Features

1.Bright and easy-to-read display (for 4-digit and 6-digit display types)

2-color backlight LCD display

2.Easy to use, simple operation, simple settings

  • Operation modes can be set using DIP switches on the side panel
  • Set values can be set using key switches on the front panel

3.Pre-scaling function provided

4.Built-in power supply for highcapacitance sensor (for AC power supply type)

5.Two-wire system DC sensor can be connected

6.Screw terminal type (M3.5) and Pin type are both standard models.

7.Replaceable panel cover

Panel design can be changed from standard (ash gray) to black (sold separately)


Setting the Operation Mode and Counter

1.Setting the operation mode (input mode and output mode)

Set the input and output modes with the DIP switches on the side of the counter.

2.Setting the set value

Set the set value with the UP and DOWN keys on the front of the counter.

Front display section

4-digit display type
  • 1.Counter display
  • 2.Set value display
  • 3.Controlled output indicator
  • 4.Reset indicator
  • 5.Lock indicator
  • 6.UP keys
    Changes the corresponding digit of the set value in the addition direction (upwards).
  • 7.DOWN keys
    Changes the corresponding digit of the set value in the subtraction direction (downwards)
  • 8.RESET switch
    Resets the counting value and the output
  • 9.SET/LOCK switch
    This is used to handle pre-scaling values, one-shot times, decimal point position settings, and key lock operations (to disable Up key, Down key, and Reset key operations).
6-digit display type
  • 1.Counter display
  • 2.Set value display
  • 3.Controlled output indicator
  • 4.Reset indicator
  • 5.Lock indicator
  • 6.UP keys
    Changes the corresponding digit of the set value in the addition direction (upwards).
  • 7.RESET switch
    Resets the counting value and the output
  • 8.SET/LOCK switch
    This is used to handle pre-scaling values, one-shot times, decimal point position settings, and key lock operations (to disable Up key, Down key, and Reset key operations).

3.Setting the input mode

The input mode is set using the key switch in the [Display] section on the front of the counter.

Decimal point position setting mode
  • 1.Holding down the [SET/LOCK] key, press the key for the second digit to access the decimal point position setting mode.
  • 2.When the setting mode has been accessed, release the [SET/LOCK] key.
  • 3.The decimal point is set using the [UP] and [DOWN] keys to specify the 2nd, 3rd, and 4th digits (this applies only to 4-digit models).
    (The 1st digit is set using the [UP] key or [DOWN] key in settings where there is no decimal point (this applies only to 4-digit models).)
  • 4.Press the [RESET] key to set the displayed decimal point position and return to normal operation.
Setting the pre-scaling value
  • 1.Holding down the [SET/LOCK] key, press the key for the first digit to access the pre-scaling value setting mode.
  • 2.When the setting mode has been accessed, release the [SET/LOCK] key.
  • 3.Use the [UP] or [DOWN] key to set the pre-scaling value (this applies only to 4-digit models).
    Select either: 0.001 to 9.999 (4-digit) or 0.001 to 99.999 (6-digit)
  • 4.Press the [RESET] key to set the displayed pre-scaling value and return to normal operation.
Setting the one-shot output time
  • 1.Holding down the [SET/LOCK] key, press the key for the third digit to access the one-shot output time setting mode.
  • 2.When the setting mode has been accessed, release the [SET/LOCK] key.
  • 3.Each time the 1st-digit [UP] key is pressed, the one-shot output time changes in the following sequence, moving to the right:
(With a 4-digit type, the [DOWN] key can also be used to move to the left.)
  • 4.Press the [RESET] key to set the displayed one-shot output time and return to normal operation.

4.Changing the set value

1.It is possible to change the set value with the up and down keys (4- digit type only) even during counting. However, be aware of the following points.
  • 1.If the set value is changed to less than the count value with counting set to the addition direction, counting will continue until it reaches full scale (9999 with the 4-digit type and 999999 with the 6-digit type), returns to zero, and then reaches the new set value. If the set value is changed to a value above the count value, counting will continue until the count value reaches the new set value.
  • 2.Suppose that the counter is preset to count down. Whether a preset countdown value is smaller or larger than the count value, the counter counts down to "0(Zero)".
2.If the set value is changed to "0," the unit will not complete count-up. It starts counting up when the counting value comes to "0 (Zero)" again.
  • 1.Up-count (addition) input when counting is set to the addition direction, counting will continue until full scale is reached (9999 with the 4-digit type and 999999 with the 6-digit type), return to zero, and then complete count-up.
  • 2.Down-count (subtraction) input when counting is set to the subtraction direction, counting will continue until full scale is reached (-999 with the 4-digit type and -99999 with the 6-digit type), and then the display will change to [- - - -] with the 4-digit type and [- - - - - -] with the 6-digit type. The counting value does not become "0" and so the counter does not count up.
  • 3.For directive, independent, and phase input, when the counting value increases or decreases from the value "0" and then returns back to the value "0," count-up is completed.

Operation Modes

1.Input mode

For the input mode, you can choose one of the following five modes

  • Addition [UP]
  • Subtraction [DOWN]
  • Directive [DIR]
  • Independent [IND]
  • Phase [PHASE]
Input mode Operation *Minimum input signal width 30 Hz: 16.7 ms; 5 kHz: 0.1 ms
Addition
[UP]
IN1 or IN2 works as an input block (gate) for the other input. Example where IN1 is the count counting and IN2 is the input block (gate).

Example where IN2 is the counting input and IN1 is the input block (gate).

*"A" must be more than the minimum input signal width.
Subtraction
[DOWN]
Directive
[DIR]
IIN1 is the counting input and IN2 is the addition or subtraction directive input. IN2 adds at L level and subtracts at H level.
* "A" must be more than the minimum input signal width.
Independent
[IND]
IN1 is addition input and IN2 is subtraction input.
IN1 and IN2 are completely independent, so there is no restriction on signal timing.
Phase
[PHASE]
Addition when the IN1 phase advances beyond IN2, and subtraction when the IN2 phase advances beyond IN1.
* "B" must be more than the minimum input signal width.

2.Output mode

For the output mode, you can choose one of the following seven modes

  • Maintain output/hold count [HOLD-A]
  • Maintain output/over count I [HOLD-B]
  • Maintain output/over count II [HOLD-C]
  • One shot/over count [SHOT-A]
  • One shot/recount I [SHOT-B]
  • One shot/recount II [SHOT-C]
  • One shot/hold count [SHOT-D]
Output mode Operation (Example when input mode is either addition or subtraction)
Maintain output
Hold count
[HOLD-A]
Output control is maintained after count-up completion and until resetting. During that time, the count display does not change from that at count-up completion.
* n: Set value
Maintain output
Over count I
[HOLD-B]
Output control is maintained after count-up completion and until resetting. However, counting is possible despite completion of count-up.
* n: Set value
Maintain output
Over count II
[HOLD-C]
Output control is maintained after count-up completion and until the next signal enters. However, counting is possible despite completion of countup.
* n: Set value
One shot
Over count
[SHOT-A]
Output control is maintained after count-up completion for a fixed time (approx. 1 sec). Counting is possible despite completion of count-up.
* n: Set value
One shot
Recount I
[SHOT-B]
Output control is maintained after count-up completion for a fixed time (approx. 1 sec). Counting is possible despite completion of count-up. However, reset occurs simultaneous with completion of count-up. While output is being maintained, restarting of the count is not possible
* n: Set value
One shot
Recount II
[SHOT-C]
Output control is maintained after count-up completion for a fixed time (approx. 1 sec). Counting is possible despite completion of count-up. However, reset occurs simultaneous with output OFF.
* n: Set value
One shot
Hold count
[SHOT-D]
Output control is maintained after count-up completion for a fixed time (approx. 1 sec). During that time, the count display does not change from that at count-up completion. Reset occurs simultaneous with output OFF.
* n: Set value

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