H8PS

19

■ Precautions for Correct Use

• A cam output will remain ON if the set angles for two steps overlap

for the same cam number.

Step 1: 120

° ON → 170° OFF

Step 2: 150

° ON → 210° OFF

• A step will produce no output if the ON and OFF angle for the step

are the same.

• The RUN output does not turn ON during programming.

Note: The RUN 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 trial

operation.

• Input signals may be accepted, not accepted, or unstable for the

following times when the power supply is turned ON or OFF. Set the

system to allow leeway in the timing of input signals. Approx. 1

second is required from the time the power supply is turned ON

until outputs are made. Refer to the Operation Manual (Cat. No.

Z199) for information on other timing.

• When using 16-/32-output Modules, the operation timing of the

outputs will be as shown below in relation to the ON/OFF timing of

the start input. Refer to Bank Functions (F7/F8/F9) on page 29

when switching banks.

• Do not subject H8PS Connectors (outputs, Encoder) to more than

30 N of force.

• Confirm the waveform of the power supply circuit and install a

surge absorber. Surge or noise applied to the power supply may

destroy internal elements or cause malfunctions.

• Switch the power supply circuit with a device rated at 3.5 A or

higher.

• Inrush current of approximately 3.5 A will flow for a short period of

time when the power supply is turned ON. The H8PS may not start

if the capacity of the power supply is not sufficient. Be sure to use a

power supply with sufficient capacity.

• EEPROM is used as memory when the power is interrupted. The

write life of the EEPROM is 100000 writes. The EEPROM is written

when settings are changed or deleted or when the resolution is

changed.

• Make sure that all settings are appropriate for the application.

Unexpected operation resulting in property damage or accidents

may occur if the settings are not appropriate.

• Connect all negative (

−) terminals, COM terminals, and Vs

terminals.

• When using the Y92C-30 Parallel Input Adapter for parallel

operation, do not connect more than two H8PS Cam Positioners to

the same Encoder.

ON

OFF

120

°

150

° 170°

210

°

ON

OFF

RUN/TEST

PRGM

RUN output

Mode Switch

Unstable

Unstable

Not accepted

Accepted

Input status

Power

supply

0 to 1.3 s

ON

OFF

5 ms 0 to 1 s

225 ms max.

225 ms max.

Output OFF

Output OFF

Output possible

ON

OFF

Cam outputs

RUN output

Start input

Refer to the following manual for precautions in using the Cam Positioner and other information required for operation:

H8PS Cam Positioner Operation Manual (Cat. No. Z199)