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296
Troubleshooting by Unit
Section 9-5
Troubleshooting for
Counter Units
Model
Details
Probable cause
Remedy
Counter Units
GRT1-CT1(-1)
GRT1-CP1-L
The count pulses can-
not be detected.
Input wiring is performed incorrectly.
Check the input wiring for
phases A and B.
The I/O power is not being supplied.
Check whether the I/O power
is being supplied.
Connections between the base blocks of
the Slice I/O Unit are not made properly.
(Refer to the following figure.)
Check whether the connec-
tions are made properly.
The terminal block is disconnected.
Check whether the terminal
block is disconnected.
The counter input mode setting is incor-
rect.
Set the count input mode cor-
rectly and restart the Unit.
The Gate Control Bit was set to disable
counting.
Turn OFF the Gate Control
Bit (to enable counting).
The counter input interface is not set
correctly (CRT1-CP1-L only)
Set the counter input inter-
face using the DIP switch on
the Unit.
The pulses are not
counted properly.
The pulse frequency exceeds the maxi-
mum value for the specifications of the
Unit or exceeds the maximum value for
the mode that is set.
Set the pulse frequency to
within the Units specifications
or within the maximum value
for the mode.
The counter input mode setting is incor-
rect.
Set the count input mode cor-
rectly and restart the Unit.
The count value is not
reset even when the
phase-Z pulse is input.
The wiring for digital input or the phase-
Z input is incorrect.
Check the wiring for the digi-
tal input or the phase-Z input.
The digital input counter reset is set
incorrectly (GRT1-CT1(-1) only).
Set the Digital Input Counter
Reset Mode Bit to 10.
The phase-Z input counter reset function
is not set correctly (GRT1-CP1-L only).
Set Counter Reset Mode Bits
for the phase-Z input to 10.
The output does not
change even if the
actual counter value
exceeds the upper or
lower limit.
The range setting is incorrect.
Change the upper and lower
limits using the Configurator.
Range 0 corresponds to out-
put 0 and range 1 corre-
sponds to output 1.
The Output Control Bits are set to keep
the output either ON or OFF.
Set the Output Control Bits to
00.
The range limit settings are not correct
(GRT1-CP1-L only).
Range 0 applies to output 0,
and range 1 applies to output
1.
The actual output is
reversed compared with
setting range.
The upper and lower limits for the range
are reversed.
Exchange the upper and
lower limits.
The Unit does not
respond at the rising
edge and falling edge of
the digital input wave-
length.
The digital input is disabled.
Enable the digital input.
The digital input setting is incorrect.
Set the digital input using the
Configurator.
The I/O po
w
er s
u
pply
connectors on the Slice I/O
Units are not interlocked
properly.
Summary of Contents for SMARTSLICE GRT1-DRT
Page 1: ...OPERATION MANUAL Cat No W455 E1 08 SmartSlice GRT1 Series Slice I O Units ...
Page 3: ...SmartSlice GRT1 Series Slice I O Units Operation Manual Revised December 2018 ...
Page 4: ...iv ...
Page 6: ...vi ...
Page 20: ...xx EC Directives 6 ...
Page 62: ...42 Connecting Turnback Cables Section 3 3 ...
Page 250: ...230 Maintenance Information Window Section 7 3 Maintenance Information Window ...
Page 292: ...272 GRT1 CP1 L Positioning Unit Section 7 5 ...
Page 300: ...280 GRT1 END End Unit Section 8 5 Dimensions 11 9 11 9 55 7 1 5 19 5 83 5 2 9 2 9 OMRON ...
Page 322: ...302 Troubleshooting by Unit Section 9 5 ...
Page 350: ...330 Explicit Messages Appendix A ...
Page 354: ...334 Power Consumption and Weight Tables Appendix C ...
Page 356: ...336 I O Current Consumption Table Appendix D ...
Page 364: ...344 Revision History ...
Page 365: ......