Mitsubishi Electric Q26UD(E)HCPU User Manual page 74

● When mounting the module, always insert the module fixing projection into the module fixing hole of the base unit.
At that time, securely insert the module fixing projection so that it does not come off from the module fixing hole.
Failure to do so may damage the module connector and module.
● When using the programmable controller in an environment of frequent vibration or impact, secure the module to the
base unit using screws.
Module fixing screw : M3 × 12 (user-prepared)
● After first use of the product, do not mount or remove the module onto or from the base unit more than 50 times (IEC
61131-2 compliant). Exceeding the limit of 50 times may cause malfunction.
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