OMRON H8PS

Cam Positioner
H8PS
Counters
Cam Positioner
Economical Electronic Cam Switch with
High-performance Eight-cam Control
• Easy replacement of mechanical cam switches.
• Easy setting with single-function keys (each key has one function).
• Accepts 330-rpm input for compatibility with a variety of automatic units for operation timing control.
• Equipped with useful functions for switching encoder rotation direction, designating the encoder origin, etc.
• Bright LCD backlight display.
• Up to 16-cam control possible using parallel input adapter and
two H8PSs.
• Conforms to EMC standards (EN61326).
• Approved by UL and CSA.
• Six-language instruction manual provided.
Rotary Encoder
• This encoder works in combination with the H8PS Cam Positioner to detect the operation timing of various automatic machines at high precision.
• The E6CP is a low-cost money-saving encoder.
• The E6F is compatible with high shaft-tolerance applications as
well as environments subjected to water and oil.
Model Number Structure
■ Model Number Legend
H8PS-8B @ @
1
2
3
1. Front panel language
B:
English
2. Mounting method
None: Flush mounting
F:
Surface/Track mounting
3. Output configuration
None: NPN transistor output
F:
PNP transistor output
Cam Positioner
H8PS
C-155
Ordering Information
■ Cam Positioner
Mounting method
Output configuration
NPN transistor output
Flush
Surface/Track
Model
H8PS-8B
PNP transistor output
H8PS-8BP
NPN transistor output
H8PS-8BF
PNP transistor output
H8PS-8BFP
■ Rotary Encoder
Type
Cable
length
2m
Economy
Model
E6CP-AG5C-C
E6F-AG5C-C
Rigid
■ Accessories (Order Separately)
Item
Specification
Model
Protective Cover
---
Y92A-96B
Shaft Coupling for E6CP
Axis dia.: 6 mm
E69-C06B
Shaft Coupling for E6F
Axis dia.: 10 mm
E69-C10B
Extension Cable (see note)
5 m (same for E6CP and E6F)
E69-DF5
Parallel Input Adapter
---
Y92C-30
Mounting Base
For [email protected]
Y92F-91
DIN Track
Length: 50 cm
PFP-50N
Length: 100 cm
PFP-100N(2)
Spacer
---
PFP-S
End Plate
---
PFP-M
Note: Please inquire about the availability of non-standard lengths.
C-156
Cam Positioner H8PS
Specifications
■ Ratings/Characteristics
Cam Positioner
H8PS-8B(P): Flush mounting
H8PS-8PF(P): Surface/Track mounting
Rated supply voltage
24 VDC
Operating voltage range
85% to 110% of rated voltage
Power consumption
Approx. 4 W
Setting unit
1° Increments (cam control precision, however, is within 2°: 256° rotational increments)
Up to 2 output signals can be set per cam
Inputs
Encoder input: connections to a special absolute encoder (OMRON E6CP/E6F)
Response rotation speed:
Run mode: 330 min−1 max.
Switchable between high speed (60 to 330 min−1) and low speed (60 min−1 max.)
Test mode: 60 min−1 max.
Includes malfunction data detection
Outputs
Open-collector transistor output
NPN: H8PS-8B(F)
PNP: H8PS-8B(F)P
Cam outputs: 8 lines (Output No.1 to 8)
30 VDC max., 100 mA max. (residual voltage: 2 V max.)
RUN OUT:
Turns ON in Run and Test modes, OFF in Program mode in case of error
30 VDC max., 100 mA max. (residual voltage: 2 V max.)
TACHOMETER:60-ppr signal output for rpm meter
30 VDC max., 30 mA max. (residual voltage: 0.5 V max. for NPN models, 2 V max. for PNP
models)
Encoder cable extension distance
100 m max.
Output response time
Run mode: 0.5 ms max. under high speed designation
2.5 ms max. under low speed designation
Test mode: 5 ms max.
Life expectancy of memory
back-up battery
10 years (at 25°C)
Insulation resistance
100 MΩ min. (at 500 VDC) between current-carrying terminal and exposed, non-current-carrying metal part
Dielectric strength
1,000 VAC, 50/60 Hz for 1 min between current-carrying terminal and exposed, non-current-carrying metal part
Impulse withstand voltage
1 kV between power terminals, 1.5 kV between current-carrying terminal and non-current-carrying metal part
Noise immunity
±480 V between power terminals for square-wave noise from noise simulator (pulse width: 100 ns/1 µs, 1 ns at
startup)
Static immunity
Destruction: 15 kV
Malfunction: 8 kV
Vibration resistance
Destruction: 10 to 55 Hz 0.75-mm single amplitude each in X, Y, and Z directions
Malfunction: 10 to 55 Hz 0.5-mm single amplitude each in X, Y, and Z directions
Shock resistance
Destruction: 300 m/s2
Malfunction: 200 m/s2
Display method
LCD with back light
EMC
(EMI)
Emission Enclosure:
Emission AC mains:
(EMS)
Immunity ESD:
EN61326
EN55011 Group 1 class A
EN55011 Group 1 class A
EN61326
EN61000-4-2: 4 kV contact discharge (level 2)
8 kV air discharge (level 3)
Immunity RF-interference:
EN61000-4-3: 10 V/m (Amplitude-modulated, 80 MHz to 1 GHz) (level 3)
10 V/m (Pulse-modulated, 900 MHz ±5 MHz) (level 3)
Immunity Conducted Disturbance: EN61000-4-6: 10 V (0.15 to 80 MHz) (according to EN61000-6-2)
Immunity Burst:
EN61000-4-4: 2 kV power-line (level 3);
2 kV I/O signal-line (level 4)
Immunity Surge:
EN61000-4-5: 1 kV line to lines (power and output lines) (level 2);
2 kV line to ground (power and output lines) (level 3)
Approved standards
UL508, CSA C22.2 No.14
Ambient temperature
Operating: -10°C to 55°C (with no icing)
Storage: -25°C to 65°C (with no icing)
Ambient humidity
Operating: 35% to 85%
Weight
Approx. 300 g
Counters
Mounting method
Cam Positioner
H8PS
C-157
Rotary Encoder
Item
E6CP-AG5C-C
F6F-AG5C-C
Rated supply voltage
12 VDC -10% to 24 VDC +15%, ripple (p-p) 5% max.
Current consumption
70 mA max.
Resolution (per revolution)
256 (8-bit)
Output code
Grey binary
Output method
Open collector output
Output capacity
Applied voltage: 28 VDC max.
Sink current:
16 mA max.
Residual voltage: 0.4 V max.
(sink current at 16 mA)
Logic
Negative logic (H = 0, L = 1)
Applied voltage: 30 VDC max.
Sink current:
35 mA max.
Residual voltage: 0.4 V max.
(sink current at 35 mA)
Precision
Within ±1°
Rotation direction
Clockwise (viewing from the shaft) for output code increment
Rise and fall times of output
1 µs max. (control output voltage: 16 V; load resis- 1 µs max. (control output voltage: 5 V; load resistance: 1 kΩ; output cord: 2 m max.)
tance: 470 Ω; output cord: 2 m max.)
2 µs max. (control output voltage: 5 V; load resistance: 1 kΩ; output cord: 2 m max.)
Startup torque
0.98 × 10-3 N·m max.
9.8 × 10-3 N·m max.
Moment of inertia
1.0 × 10 kg·m max.
1.5 × 10-6 kg·m2 max.
-6
2
Radial
29.4 N
98 N
Thrust
19.6 N
29.4 N
Max. rpm threshold
1,000 min−1
5,000 min−1
Ambient temperature
Operating: -10°C to 55°C (with no icing)
Storage: -25°C to 85°C (with no icing)
Operating: -10°C to 60°C (with no icing)
Storage: -25°C to 80°C (with no icing)
Ambient humidity
35% to 85% (with no condensation)
Degree of protection
IEC standard IP50
Insulation resistance
50 MΩ max. (at 500 VDC) between charged parts 10 MΩ max. (at 500 VDC) between charged parts
and the case
and the case
Dielectric strength
500 VAC, 50/60 Hz for 1 min between charged parts and the case
Vibration resistance
Malfunction: 10 to 55 Hz, 1.5-mm double amplitude each in X, Y, and Z directions for 2 hrs
Shaft-load tolerance
IEC standard IP52F
Shock resistance
Malfunction: 1,000 m/s2 for 3 times each in X, Y, and Z directions
Weight
Approx. 200 g (with 2-m cord)
C-158
Cam Positioner H8PS
Approx. 500 g (with 2-m cord)
Connections
■ Terminal Arrangement
H8PS-8BF
Counters
H8PS-8B
Output Circuit
*When using an inductive load, connect a
reverse surge-absorbing diode.
H8PS-8BP
H8PS-8BFP
Output Circuit
(Rated voltage: 24 VDC)
Item
H8PS-8B/-8BF
RUN OUT Output 1 to 8
TACHOMETER
H8PS-8BP/-8BFP
RUN OUT Output 1 to 8
Output method
NPN open collector
Dielectric strength
30 V
Rated current
100 mA
30 mA
100 mA
Residual voltage
2 V max.
0.5 V max
2 V max.
Leak current
100 µA max.
5 µA max.
100 µA max.
TACHOMETER
PNP open collector
30 V
30 mA
Note: Internal circuit damage can result from a short circuit in the load.
Cam Positioner
H8PS
C-159
Multiple outputs (OUTPUT 1 to 8) can be connected to operate a load as shown below.
H8PS-8B/8BF
H8PS-8BP/8BFP
Load
Timing Chart
Output 1
Output 2
Output 3
Load
ON
OFF
ON
OFF
ON
OFF
ON
OFF
■ Connection Examples
TACHOMETER Connection
Since the rotational output consists of 60 pulses per revolution,
select an appropriate rpm meter.
H8PS-8B, -8BF
Tachometer output (9)
H7ER-N
1
2
3
4
−(13)
RUN OUT Connection
The output is ON during run and test modes and can be used as a
status signal by connecting to the Input Unit of a Programmable Controller (SYSMAC) or similar device.
C-160
Cam Positioner H8PS
Counters
Nomenclature
−1
FAST: 60 to 330 min
−1
SLOW: 60 min or less
Cam Positioner
H8PS
C-161
Dimensions
Note: 1. All units are in millimeters unless otherwise indicated.
2. @ denotes square dimensions.
■ Cam Positioner
Flush Mounting Models
H8PS-8B
H8PS-8BP
Flush Mount
CHECK
OUT No.
STEP
11 dia.
Two mounting screws
M4 × 12 sems
Surface-mounting/Track-mounting Models
H8PS-8BF
H8PS-8BFP
Surface Mount
CHECK
OUT No.
STEP
17.8
C-162
Cam Positioner H8PS
Track Mount
H8PS-8BF/-8BFP with Y92F-91
Counters
Y92-F91 (order separately) mounting base
■ Accessories (Order Separately)
Protective Cover
Track Mounting Base
Y92A-96B
Y92F-91
Adapter for Parallel Operation
This Adapter enables two H8PS Cam Positioners to share a signal
from an Encoder.
Use the cable marked with triangle mark when connecting only one
H8PS Cam Positioner to the adapter.
Panel Surface Mounting
Surface
M4 screw
(included)
Two, M4 tap holes
Panel Back Mounting
Back
M4 nut (included)
M4 screw
(included)
Two, 4.3 holes
Cam Positioner
H8PS
C-163
■ Rotary Encoder
E6CP-AG5C-C
Note: 1. Round, vinyl-insulated cord. External dia.: 6 mm;
10/7/0.18-mm dia.; standard: 2 m.
2. Connector to H8PS (Hirose Electric: RP13A-12PD-13SC)
With Mounting Bracket
Mounting Bracket
(included)
E6F-AG5C-C
16.9 dia.
Note: 1. Round, vinyl-insulated and shielded cord (oil resistant).
External dia.: 6 mm; 12/7/0.18-mm dia.; standard: 2 m.
2. Connector to H8PS (Hirose Electric: RP13A-12PD-13SC)
C-164
Cam Positioner H8PS
With Mounting Bracket
Counters
Mounting Bracket
(included)
■ Accessories for Rotary Encoder
Shaft Coupling (for E6CP)
E69-C06B
Shaft Coupling (for E6F)
E69-C10B
Note: The material is polyacetal resin with glass fibers (GC-25).
Extension Cable
E69-DF5
Note 1
Note 2
Note: 1. Connector for H8PS (E6F-AB3C-C, E6F-AG5C-C)
2. Round, vinyl-insulated and shielded cord (oil resistant).
External dia.: 6 mm; 12/7/0.18-mm dia.; 5 m.
3. Connected to H8PS.
4. The maximum cable length for connection to the H8PS is
100 m (including the cable provided).
Cam Positioner
H8PS
C-165
Precautions
■ Cam Positioner
Error Displays and Cancelling
When an error occurs, perform the following cancellation operation. (When the following errors occur, all outputs turn OFF except for the TACHOMETER output.)
Display
Description
Cancellation method
Set origin data error
Reset the origin in the Programming Mode and return to the
previous mode.
Memory error, when settings have been modified
Switch to the Programming Mode and confirm all settings. After correcting the settings, return to the previous mode.
1. The back-up battery has expired.
2. The contents of memory have changed due to noise or
another factor.
Encoder input data error
1. The Encoder is malfunctioning or a connector is disconnected.
2. The Encoder rotation speed exceeds the response limit.
3. The Encoder output data became scrambled because of
noise.
4. A line to the Encoder is cut.
After turning on the power, it takes approximately two seconds until
normal operation,
When the ON angle and OFF angle are the same value, no output
will occur.
Handling
Turn the operation power on or off instantaneously via a contact such
as a switch or relay.
Avoid operation in the following environments:
1.
2.
3.
4.
5.
6.
7.
An ambient temperature below -10°C or above 55°C.
Very dusty locations.
Very humid locations.
Locations where corrosive gasses are generated.
Locations with heavy vibrations or shock.
Locations prone to water or oil.
Locations with direct sunlight.
For operation in environments with excessive electrical noise generation, separate the Encoder cords and the main unit of the H8PS from
high-power cables that have noise or noise-generating sources.
Angle Data Table
The H8PS uses an absolute Encoder with 256 divisions per revolution. To assist with programming, displays and settings may be done
by conversion to 360 degrees by a switch on the front panel. The following table shows the conversions.
How to Use the Table
0
1
256 display (Encoder output data)
0°
1°
360 display (360° converted data)
C-166
Cam Positioner H8PS
Switch to the Programming Mode and check the following
items. Return to the previous mode after corrections.
1.
2.
3.
4.
Encoder abnormality
Faulty Encoder connector contacts
Encoder rotation speed and response speed settings
Noise and surge protection
The external finish of the main unit is prone to organic solvents (thinner, benzene, etc.), strong alkali (ammonia, sodium hydroxide), and
strong acid. Please avoid contact with theses chemicals.
Store the devices between -25°C and 65°C. For storage below
−10°C, power the unit up after letting it stand at room temperature for
three hours.
To perform dielectric testing, impulse-voltage testing, and insulationresistance measuring between the electrical circuitry and the
uncharged metal parts when the unit is mounted in a control panel,
first disconnect the wiring of the unit from the circuitry. (This prevents
degradation of damage of internal circuitry in the event that part of
the control-panel equipment has faulty voltage resistance or faulty
insulation. The test voltage might go to the power-supply terminals of
the main unit.)
The Encoder consists of precision parts. Exercise care in handling,
and make sure no excessive shock or pressure is applied to the
Encoder. Especially make sure that the Encoder’s rotating shaft is
not subjected to excessive force.
The connections for the main unit connectors should have no undue
stress applied. Wire cables accordingly.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0°
1°
3°
4°
6°
7°
8°
10°
11°
13°
14°
15°
17°
18°
20°
21°
31
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
23°
24°
25°
27°
28°
30°
31°
32°
34°
35°
37°
38°
39°
41°
42°
44°
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
45°
46°
48°
49°
51°
52°
53°
55°
56°
58°
59°
60°
62°
63°
65°
66°
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208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
293°
294°
295°
297°
298°
300°
301°
302°
304°
305°
307°
308°
309°
311°
312°
314°
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
315°
316°
318°
319°
321°
322°
323°
325°
326°
328°
329°
330°
332°
333°
335°
336°
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
338°
339°
340°
342°
343°
345°
346°
347°
349°
350°
352°
353°
354°
356°
357°
359°
!WARNING
1. The H8PS has a built-in lithium battery. Be sure to dispose of
the old H8PS properly, as lithium batteries are likely to explode
if incinerated.
2. Electrical shock hazard
Never touch the input terminals of any H8PS Cam Positioner
when power is being applied to the Cam Positioner.
■ Rotary Encoder
Make sure that the E6CP Encoder is not subjected to oil or water. If
oil or water enters the interior, malfunctions may occur. For use in
environments subject to water drops or oil, use the E6F.
If you insert a coupling on the shaft, do not hammer on the coupling
or otherwise subject it to shock.
Make sure that there is no foreign matter in the Connector before
connecting the Encoder.
Mounting Procedure
Rotary Encoders consist of precision parts. Their operation may be
damaged if the Encoder is dropped. Be very careful with handling.
When joining to a chain, timing belt, or gears, interpose a coupling
and bearings before the Encoder.
Chain sprocket
Bearing
1. Place a coupling on the shaft.
Do not screw the coupling and shaft tight.
2. Fasten the Encoder.
Do not insert the shaft to the coupling more than the length shown
below.
Shaft coupling
Coupling
Rotary Encoder
Length of insertion
E69-C06B
5.5 mm
E69-C10B
7.1 mm
3. Fasten the coupling.
Shaft coupling
Large mounting deviations (eccentric centers or angles) may cause
an excessive load on the Encoder’s shaft, resulting in damage or
drastically reduced life expectancy. Take care not to place excessive
loads on the shaft.
Keep the tightening torque around 0.49 N·m when fastening the
rotary Encoder.
Tightening torque
E69-C06B
0.25 N·m
E69-C10B
0.44 N·m
4. Connect power supply and input/output lines.
Make sure you turn off the power supply when wiring.
5. Turn on the power and check outputs.
Do not pull the wiring at a force greater than 29.4 N when the main
unit is fastened and wired.
Main unit
29.4 N max.
Fastening
plate
Cord
Cam Positioner
H8PS
C-167
Counters
0
Operating Procedures
■ Functions
Classifications
Functions
Encoder data revolutions can be set to clockwise or counterclockwise.
Encoder rotational direction switch
Encoder origin designation
The process display angle can be set to the origin as 0° at the press of a button.
Angle display switch
The unit can convert the display of absolute encoder values 256 divisions/revolution to 360°/revolution.
Rotation display monitor
Graphic display of encoder rotational angle position.
Teaching
The unit can set the ON/OFF angle from actual operation of the machine.
Monitor contents
Process value display (character height: 11 mm), output display, settings display, set cam number display, mode display, revolution display, operation step display, and error message display.
■ Operation
The H8PS Cam Positioner receives angle signal inputs from the Encoder, and outputs the preset ON/OFF angles as control signals (cams number
1 to 8).
Program Example
Control output (cam number)
STEP 1
ON angle
1
45°
STEP 2
OFF angle
180°
ON angle
OFF angle
---
---
2
0°
90°
180°
270°
.
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.
.
.
.
.
8
135°
225°
315°
45°
Operation Example
315
Note: 1. When the setting angles for STEP 1 and STEP 2 of same output are overlapped, the operation is as follows:
2. The operating output RUN OUT" does not turn ON during programming. The operation output turns ON with the timing shown in
the diagram, but it remains OFF when an error occurs. Thus, you can use the output as a timing signal during operation, including
test runs.
C-168
Cam Positioner H8PS
Counters
■ Initializing
Set the rotation speed of the Encoder.
FAST: 60 to 330 min−1
SLOW: 60 min−1 max.
■ Actual Setting Example
1. Setting the Origin
d. Press the ORIGIN Key.
Any mode can be used to set the origin except for the Run Mode.
Ex. Set the process value of 180° to 0°.
a. Set the mode switch to PRGM.
b. Set the programming mode switch to TCH.
Mode
Programming Mode
PRGM
Initial Display
c. Adjust the machine (Encoder) to the position of the desired origin
(180° in the example).
Cam Positioner
H8PS
C-169
2. Setting of Modifying the ON or OFF
Angle
3. Setting or Modifying the ON/OFF
Angle Set or Modify by Teaching
Set or modify with the Angle Keys.
Ex. Set cam number 2 step 2 to turn ON at 30° and turn OFF at 41°.
Ex. Set the ON/OFF angle by teaching step 1 of cam number 3.
a. Set the mode switch to PRGM.
a. Set the mode switch to PRGM.
b. Set the programming mode switch to TCH.
b. Set the programming mode switch to MAN.
Mode
Programming Mode
Mode
Programming Mode
PRGM
PRGM
Initial Display
Initial Display
c. Press the OUT NO. Key and select “3” for cam number 3.
c. Press the OUT NO. Key and select “2” for cam number 2. Keep
pressing the key for automatic increment or decrement.
d. Press the STEP Key and select “STP1” for step 1.
d. Press the STEP Key and select “STP2” for step 2.
e. Press the ON/OFF Key to set the ON angle.
e. Press the ON/OFF Key to set the ON angle.
f. Adjust the machine (Encoder) and set it at the output ON position
(125° in the example).
f. Press the + or - Keys to set to “30.”
g. Press the WRITE Key.
g. Press the WRITE Key.
h. Press the ON/OFF Key to set the OFF angle.
h. Press the ON/OFF Key to set the OFF angle.
i. Press the + or - Keys to set to “41.”
i. Adjust the machine (Encoder) and set it at the output OFF position
(312° in the example).
j. Press the WRITE Key.
j. Press the WRITE Key.
Note: Pressing the + or - Key continually will automatically increment
or decrement the value. Pressing the other key during automatic increment or decrement will increase the speed.
Note: If the machine (Encoder) is operated at a speed greater than
permitted, an “E2” error will occur.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. M041-E1-04
C-170
In the interest of product improvement, specifications are subject to change without notice.
Cam Positioner H8PS
Glossary
Electrical life expectancy
The life expectancy of a counter when the control output is operated
to switch a specified voltage/current load connected to the control
output.
External reset
To reset the counter by a required signal applied from an external
source to the reset input signal terminals of the counter.
Add input
Holding output
The control output of the counter without a self-resetting function.
The output is continuously held as long as the counter is not reset by
the power, external, manual, or electromagnetic reset.
Count value
Ambient temperature (operating)
The ambient temperature at which a device can be used in the continuously operated state.
Ambient temperature (storage)
The ambient temperature at which a device without power applied,
may be stored safely.
Automatic reset
To automatically return the counter to the „0“ state after the lapse of a
given time.
Counting capacity
The maximum value up to which the counter can count. The counting
capacity is usually expressed in decimal digits.
Count-up
The point in time or the state in which the output section of the
counter operates when the number of counts reaches the preset
value.
Dielectric strength
The maximum voltage a dielectric can withstand without being damaged.
Electromagnetic reset
To electromagnetically reset the counter by applying a reset signal.
Humidity
The ambient humidity at which a device can be used for continuous
operation.
Insulation resistance
The resistance offered by an insulating material to the flow of current
resulting from a DC voltage.
Life expectancy (mechanical)
The life expectancy of a counter when the control output of the
counter is operated without a load.
Manual reset
To mechanically reset the counter by manual means.
Maximum counting speed
The maximum counting speed at which the display or output section
of the counter operates accurately without miscounting. The maximum counting speed is expressed in units of counts per second
(cps).
Memory protective function during power failure
The function by which the number of counts at the time of a power
failure is memorized until power is again applied to the counter.
Operating mode
Control output patterns or display patterns that appear when counted
up to the value set by the preset counter.
Electromagnetic counter
A counter which performs counting by energizing or de-energizing
the built-in electromagnet.
N Mode
Electronic counter
A counter which mainly consists of transistors, ICs, micro-computers,
etc.
Count value display
Set value
Count value display:
Held
Control output: Held
Control output
C Mode
Set value
Count value display:
Instantaneous reset
Count value display
Control output: one shot
Control output
Operating voltage range
The allowable fluctuation range of the voltage required to operate a
device (e.g. control and signal voltage).
CPU
Memory
One-shot output
A counter control output of fixed duration which can be reset by a
self-reset.
C-171
Counters
Addition-type (Up/Incrementing) counter
A counter having an add input and thus capable of counting in an
ascending order.
Glossary
ON-OFF ratio
The ratio of the ON signal time of a given input signal to the OFF signal time of the same input signal. The maximum counting speed of
each counter is determined by a counting input signal with an ONOFF ratio of 1:1.
Power consumption
The maximum wattage used by a device within its operating range at
the specified temperature and humidity.
Depending on the internal power circuit system of the model, both
apparent power and active power are indicated for the AC power
supply. Refer to the apparent power when designing a transformer.
Stage
Number of preset values that correspond with the number of control
outputs.
Set 2
Set 1
Count value
Control output 1
Preset solid-state counter
A counter whose control output operates when it counts up to the set
value and which employs a semiconductor circuit for the counting
element.
Control output 2
Subtraction-type (Down/Decrementing) counter
A counter with a subtract input and thus capable of counting in
descending order.
Set value
Count value
Control input
Control output
Count value
Readout counter
A counter in which an output signal is normally generated corresponding to the count value.
Reset
To restore the counting, display and output sections of the counter, to
their initial states.
Control input
Reversible-type counter
A counter with the capability of counting in an ascending or descending order, depending on the up-down inputs. Also called an up-down
counter.
Addition
Subtraction
There are several
input modes for
addition or
subtraction.
Count value
Power reset
To reset the counter by cutting off the operating supply voltage.
Self-reset
To reset the counter by a signal generated by internal circuitry.
Shock resistance (destruction)
The threshold of shock beyond which an abnormality is expected to
occur in the appearance or function of a device.
Shock resistance (malfunction)
The threshold of shock beyond which a device can be longer operate
properly according to prescribed ratings
C-172
Totalizing counter
A counter which indicates the total value of the counting inputs and is
not provided with a control output.
Vibration resistance (destruction)
The threshold of vibration beyond which an abnormality is expected
to occur in the appearance or function of a device.
Vibration resistance (malfunction)
The threshold of shock beyond which a device can be longer operate
properly by satisfying the prescribed ratings.
Glossary
Counting Function
Refer to the following timing charts for the input modes of the incremental, decrementing, and up/down (or reversible-type) Counters.
Up/Down D Control Input
Counters
Up/Down
Up/Down A Control Input
Count
Count
Up/Down B Individual Input
Count
Up/Down C Phase-difference Input
Up/Down E Individual Input
Count
Up/Down F Phase-difference Input
Count
Count
C-173