Code PC051: IOLINK ER2 CHz:yy:xx:ww:vv

Section: PMC alarm list (1) When using the I/O Unit-MODEL I/O Link. A, even though the base The symbol z indicates a channel expansion has been allocated, number (1 to 3). the base is not connected. The symbols yy, xx, ww, and vv Check whether the units actually indicate internal error codes. connected follow the I/O Link A communication error occurred on allocation. channel z of I/O Link. This alarm is issued by various (2) When the Power Mate or Servo factors related to I/O Link. Motor β series I/O Link option was connected as an I/O slave unit, check whether a system alarm occurred first in any of these units. (3) Check whether noise is generated on the communication line. Check the grounding state of I/O Link slave units and the shielding state of connected cables. (4) Check whether the DO output of I/O units is not short-circuited. (5) Check whether instantaneous power interruption or changes in voltage occurred in the power for I/O Link master and slave units. (6) Check that there is no failure in cable connection. (7) Check that there is no failure in cables. (8) Check that the ground terminals of I/O units and the shield wires of communication cables are properly grounded. (9) Check that the I/O Link slave units are not defective. (10) Check that the PMC modules are not defective.