User manual OMRON CJ2 CPU

[. . . ] W472-E1-08 SYSMAC CJ Series CJ2H-CPU6_-EIP, CJ2H-CPU6_, CJ2M-CPU_ CJ2 CPU Unit Hardware USER'S MANUAL OMRON, 2008 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. [. . . ] Depends on the type of error. *1 The following table shows the allowable power supply ranges for each Power Supply Unit model. Model CJ1W-PA205R/PA202 CJ1W-PD025 Power supply voltage 100 to 240 VAC 24 VDC Allowable power supply voltage fluctuation 85 to 264 VAC 19. 2 to 28. 8 VDC CJ2 CPU Unit Hardware User's Manual 6-7 6 Troubleshooting CPU Standby Errors When a CJ-series PLC is turned ON, the CPU starts cyclic servicing and enters RUN mode only after all Special I/O Units and CPU Bus Units have been detected. If the startup mode is RUN or MONITOR mode, the CPU will remain on standby until all Units have been detected. POWER Lit. Error flag None Error code None Error information None Recovery Processing Flow CPU standby Check the location of the error. Check the connection status. Use the I/O table verification procedure (refer to 6-1-5 I/O Table Verification) to check the location where the error occurred. Check the connections to the Special I/O Units and CPU Bus Units. Replace the Unit. Replace the Unit, or remove the Unit and check whether the error is cleared (to determine that the Unit that was replaced or removed just before the error was cleared was the problem). Yes Restart the System. Error Causes and Remedies Suspected cause of error Faulty connection at Unit (at a connector) Confirmation method Check the insertion at the connector. Restart the Unit and check whether the error is cleared. Replace the Unit that is causing the standby (the undetected Unit). If the error is not cleared, remove the Units in order until the status returns to normal. Prevention of recurrence Same as at the left. Unit failure · Replace the Special I/O Unit or Interrupt Unit for which "$" is displayed when the I/O tables are read. · Replace the failed Unit. (Determined by the cause of the failure. ) The remote I/O power supply is OFF or there is no terminator for SYSMAC BUS. Check whether the power is Turn ON the power or set the turned ON. cleared, replace the Unit. --- 6-8 CJ2 CPU Unit Hardware User's Manual 6 Troubleshooting Additional Information The CJ2 CPU Units support the following function. · Startup Condition Setting After the power supply is turned ON, it is possible to start operation of the CPU Unit in RUN mode or MONITOR mode even if there is one or more Units that has not completed startup. Select the Start running program when initializing Unit/Inner board recognition Check Box in the PLC Setup. For details, refer to the CJ-series CJ2 CPU Unit Software User's Manual (Cat. W473). CPU Reset The CPU Unit is being reset, and Programming Devices cannot be connected. POWER Lit. Error flag None Error code None Error information None 6-1 CPU Unit Errors Error Causes and Remedies Suspected cause of error Power to an Expansion Rack is OFF. Confirmation method Use a tester to measure the voltage at the input terminals of the Power Supply Unit. *1 Remedy Turn ON the power. Prevention of recurrence Investigate the reason that the power was OFF. If the Cable is disconnected, check for vibration and shock. 6 6-1-7 Handling Errors The I/O Connecting Cable is incorrectly installed. · The IN-OUT connectors are reversed. [. . . ] 6-11 RS-232C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-111 RS-232C Option Board specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-112 RS-232C port communications error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 RS-422A/485 Option Board specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-113 RUN output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26 S Serial Option Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20, A-102 serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9, 3-3 serial port (RS-232C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]