KEYENCE SJ-H Series - Manual (Page 8)

8
Timing Charts
This section explains the timing charts of the SJ-H* Series.
„ Control of Ion generation
z Static elimination ON/OFF Indicator
„ Input response
„ Ion level alarm output timing chart
„ Condition alarm output timing chart
„ Alarm output timing chart
Troubleshooting
Refer to the following list for troubleshooting and remedies before sending out the unit for repairs.
Warnings and Remedies
This section explains each type of warning, as well as the most common causes and best remedies
for each issue.
Normally
ON
Normally
OFF
Normally
ON
Forced
OFF
Normally
ON
Normally
OFF
Forced
ON
Normally
ON
Normally
OFF
Normally
ON
Forced
OFF
Normally
OFF
Normally
ON
Static elimination
interruption input
(SJ-H* Series) ON
OFF
Static elimination
ON/OFF Key
(Remote control) ON
OFF
Ion generation
condition
SJ-H* indicator
Yes
No
Alarm output
ON
OFF
Normal operation
Static charge or ion quantity Normal static elimination OFF
Flashing red
Forced static elimination ON
Flashing green Forced static elimination OFF
Flashing red
50 ms max.
ON
OFF
Yes
No
Static elimination
interruption input
(SJ-H* Series)
High voltage
output
Power supply
ON
OFF
Static elimination
interruption input ON
OFF
Alarm output
(N.C.) ON
OFF
Ion generation
Yes
No
ION/ALM/COND
indicator Flashing
OFF
ION LEVEL
alarm output
(N.O.) ON
OFF
After the ION LEVEL alarm is once
displayed, the SJ-H* Series will not
return to the previous state unless any
of the following items is performed.
1. Static elimination is interrupted.
2. Setting changes are made.
3. The SJ-H* Series is turned off and on.
Power supply
ON
OFF
Static elimination
interruption input ON
OFF
Alarm output
(N.C.) ON
OFF
Ion generation
Yes
No
ION/ALM/COND
indicator Flashing
OFF
Condition alarm
output (N.O.) ON
OFF
When the cause of the condition
alarm output is remedied after the
condition alarm is displayed once, the
SJ-H* Series will return to normal
mode.
Power supply
ON
OFF
Static elimination
interruption input ON
OFF
ION/ALM/COND
indicator Flashing
OFF
Alarm output
(N.C.) ON
OFF
Ion generation
Yes
No
After an alarm is once displayed,
the SJ-H* Series will not return to
the previous state unless any of
the following items is performed.
1. The SJ-H* Series is turned off
and on.
2. The alarm is cleared through
remote control.
Problem Inspection Remedy
No ION MONITOR indicators are
working.
Check that the power supply cable is
connected correctly. Connect the power supply cable
correctly.
Check that the power supply is within
the rated range. Use power supply within the rated
range.
No static elimination is performed.
Check that the electrode probes are
not worn out or dirty. Carry out maintenance work on the
electrode probes or replace them.
Check that static elimination is not
interrupted.
Cancel the static elimination
interruption input of the SJ-H* Series
and the static elimination interruption
setting in the Remote Control Console.
Check if the abnormal discharge
detection function is working. (Check if
the alarm is output) Eliminate conductive objects within 20
mm of the electrode probe and turn on
the SJ-H* Series again.
Check that the ground is connected.
Confirm that the ground is properly
connected.
Static elimination is not performed
properly.
Check that the correct frequency
setting is selected. Select the optimal frequency setting
according to the operating distance.
Check that there is no conductive
object or another Static Eliminator Unit
close to the SJ-H* Series. Keep the SJ-H* Series away from the
conductive object or the Static
Eliminator Unit.
Check that the ground is connected.
Confirm that the ground is properly
connected.
Ion level (ION LEVEL) alarm is
illuminated and output frequently. Check that the electrode probes are
not worn out or dirty. Carry out maintenance work on the
electrode probes or replace them.
The condition (COND) alarm is
illuminated and output frequently.
Check that there is no conductive
object or another Static Eliminator Unit
close to the SJ-H* Series. Keep the SJ-H* Series away from the
conductive object or the Static
Eliminator Unit.
The alarm (ALM) indicator is
illuminated.
Check that there is no conductive
object within 10 mm of the SJ-H*
Series.
Eliminate the conductive object within
10 mm of the SJ-H* Series and turn the
SJ-H* Series OFF and ON. The
abnormal discharge detection function
may have been turned ON.
Check that the SJ-C*H is connected.
The modular jack may not be inserted
properly or the cable may be
disconnected. Connect the modular
jack correctly and turn the SJ-H* Series
OFF and ON.
Control output is not output correctly.
Check that the cable is wired correctly.
Check the output circuit and make sure
that the wiring is correct.
Check if no sensitivity setting is made.
Make a sensitivity setting so that the
alarms will be output.
Check that the terminator switch is set
properly. Confirm the connection method and
make the correct settings.
Static elimination interrupt input is not
input properly.
Check that the cable is wired correctly.
Check the input circuit and make sure
that the wiring is correct.
Cannot understand the meaning of the
indicators
- See "Indicator specifications" (page 9).
It is not accepting remote controller
operation
-
Refer to the SJ-H Remote Control
Console SJ-H01 Instruction Manual.
A distance extension of 10 m or more
is required.
-
Purchase the Extension Cable and
Relay Connector.
Warning Major causes Remedy
Alarm
Irregular discharge from the end of a
probe
Turn the power off and remove any
conductive objects from the area
around the static elimination bar.
Ground not connected
Confirm that the ground is properly
connected.
Internal circuit damage Contact your nearest sales office.
Ion level warning
Dirt on the electrode probes
Turn the power OFF and clean the
electrode probe. If the ion level
warning persists after cleaning,
confirm the surroundings of the
electrode probe.
Electrode probe wear
Turn the power OFF and replace the
electrode probe
Ground not connected
Confirm that the ground is properly
connected.
Condition warning
Influence from a grounding conductor
near the static elimination device
The warning may flash when a
grounding conductor such as a metal
object is close enough to interfere with
the static elimination device. Remove
any grounding conductors near the
static elimination device.
See "Interference" (page 3).
Ground not connected
Confirm that the ground is properly
connected.