Omron H8PS User Manual

Troubleshooting
A-9
APPENDICES
The speed/angle display
cannot be switched between
Main display and Sub-dis-
play.
The all protection function is
enabled.
( symbol lights or
flashes at the upper right
area of the LCD screen.)
The all protection function is enabled to prevent
erroneous operation.
Refer to "3.11 All Protection Function"
The operation mode does
not change from Run Mode
to Programming or Test
Mode although the mode
switch setting is changed.
Program check is not possi-
ble while running.
symbol lights or flashes
at the upper right area of the
LCD screen.
The all protection function is
enabled.
A program check is not pos-
sible although the [CHECK]
key is pressed in the RUN
mode.
No program has been set. If the [CHECK] key is pressed while running, only
the registered programs are displayed, in
sequence.
The cams described below
operate differently from the
programmed operation.
8-output model:
cam No. 7 or 8
16-output model:
cam No. 15 or 16
32-output model:
cam No. 31 or 32
Speed alarm (upper or lower
limit) is allocated.
If Speed alarm is allocated, it has priority over the
cam program.
Refer to "4.5 Speed Alarm (F3/F4)"
Cancel the allocation of Speed alarm, or use other
cams.
The RUN output does not
turn on.
(16-/32-output models)
The start input is not turned
on.
The H8PS Cam Positioner is in the output prohib-
ited state (Refer to "4.3 Prohibiting Outputs")
unless the start input is turned on.
Turn on the start input.
Output does not turn on
although a program is set.
(16-/32-output models)
The bank input designation
is incorrect.
Check if the active bank number is the one of the
programmed (desired) bank.
The active bank does not
change when the bank input
is changed.
(16-/32-output models)
Bank input is disabled. Enable the bank function using the F7 menu (bank
enable/disable) in the function setting mode.
Refer to "4.8.5 Enabling the Bank (F7)"
The start input timing is not
controlled.
Bank input is switched at the rising edge of the
start input.
Refer to "4.8.4 Bank Switching Timing"
Also, check the timing of start input.
Refer to "Appendix D Operation Timing Chart"
Bank switching method is set
at [BANK] key.
To switch the bank with the bank input set so using
the F8 menu (selecting the bank switching
method) in the function setting mode.
Refer to "4.8.6 Selecting the Bank Switching
Method (F8)"
The E24 error message does
not appear although an
encoder is disconnected.
The present mode setting is
PRGM/MAN.
In the PRGM/MAN mode setting, programming is
allowed without connecting an encoder.
The E24 detection function is
disabled.
Enable the function using the F10 menu (E24
detection enable/disable) in the function setting
mode.
Refer to "4.9 E24 Detection Enable/Disable (F10)"
Symptom Probable cause Corrective action

Omron H8PS Specifications

General

Brand	Omron
Model	H8PS
Category	Valve Positioners
Language	English