NT631C-ST153B-EV3 Omron, NT631C-ST153B-EV3 Datasheet - Page 252

• Manufacturer Part Number: NT631C-ST153B-EV3
• Description: 10.48-ColrDisplay,TFT,Blk,Eng
• Manufacturer: Omron

Specifications of NT631C-ST153B-EV3

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7-3
Spare PT
Backlight (for NT631C-
ST141@-EV2/ST151@-EV2
only)
Maintenance of the NT631/NT631C
NAK received
Undefined Command Error The host is not supported.
Data Over Flow Error
Error Details
Maintenance of the NT631/NT631C
——
Instruction level 3 is not effective.
Communications command from the
host is too long.
(With memory link)
Command transmission to the host is
not possible.
Displayed Probable Cause
Carry out maintenance work in order to ensure that the NT631/NT631C is
always used in its optimum condition.
It is advisable to have a spare NT631/NT631C available to minimize system
downtime in the event of an NT631/NT631C failure or if the screen display
becomes difficult to read due to deterioration of the display unit.
When the backlight in the display is getting dim and the screen cannot be read
easily, replace the backlight. The backlight can be replaced at the rear of the
NT631C-ST141@-EV2/ST151@-EV2 while it is mounted in an operation
panel. The backlight for NT631C-ST152@-EV2 and NT631C-ST153@-V3
cannot be replaced by the user. Contact your OMRON service center when
the backlight needs to be replaced.
Replaceable Backlight Model
NT631C-CFL01 (for NT631C-ST151@-EV2)
NT631C-CFL02 (for NT631C-ST141@-EV2)
Guide to Backlight Replacement
Use the following as a guide to backlight replacement.
Do not attempt to take the unit apart and do not touch any
internal parts while the power is being supplied. Doing either
of these may result in electrical shock.
The backlight for the NT631C-ST152@-EV2/ST153@-EV3 cannot be re-
placed by the user. Contact your OMRON service center when the battery
needs to be replaced.
NT631C-ST141@-EV2: Approx. 25,000 hours
NT631C-ST151@-EV2: Approx. 30,000 hours
Check the settings for allocated words and bits.
If noise is a possible factor, distance the cable from
sources of noise and insert a noise filter in the power
supply line.
If using the equipment in a location subject to a lot of
noise, use a cable with a high degree of protection
against noise for the transmission route. Also make
the cable as short as possible.
Check the PLC model used for the host.
Check that the instruction level setting for the host is
level 1, 2, 3.
Set flow control method in the host.
Increase transmission interval.
Check the communications cable.
Check the control method at the PT and the host.
Increase the communications on speed when it to
slow.
WARNING
Remedy
Section 7-3
235