
9 Troubleshooting and Maintenance
9-54
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Inspect the following items to check whether the Unit is within the specified criterion during operation. If
the installation and operating environment of the Unit is not within the criterion, improve the ambient
operating environment and readjust the device.
Inspection Items
Item
Details
Criterion
Inspection materials
Operating
environment
Check the ambient temperature and the
temperature of the control panel.
0 to 55
°
C
Temperature gage
Check the ambient humidify and the humid-
ity of the control panel.
10% to 90% RH (no
condensation or icing)
Hydroscope
Check for accumulated dust.
No dust
Visual inspection
Installation
Check that the Unit is mounted securely.
Securely mount the
Unit.
---
Check for loose screws on the communica-
tions cables.
Securely tighten
screws.
Cross slot screwdriver
Check for damaged
communications cables.
Cables should be fully
intact.
Visual inspection
Содержание CJ1W-SCU22
Страница 192: ...4 Using Protocol Macros 4 56 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 250: ...6 No protocol Mode 6 22 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 460: ...A Standard System Protocol R 126 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 473: ...Index 1 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494 I Index...