9 LOADING AND INSTALLATION
9.3 Module Installation
9.3.1 Precaution on installation
CAUTION | Use the PLC in an environment that meets the general specifications |
| contained in this manual. Using this PLC in an environment outside the |
| range of the general specifications could result in electric shock, fire, |
| erroneous operation, and damage to or deterioration of the product. |
| Hold down the module loading lever at the module bottom, and |
| securely insert the module fixing latch into the fixing hole in the base |
| unit. Incorrect loading of the module can cause a malfunction, failure or |
| drop.When using the PLC in the environment of much vibration, tighten |
| the module with a screw. |
| Tighten the screw in the specified torque range. Undertightening can |
| cause a drop, short circuit or malfunction. Overtightening can cause a |
| drop, short circuit or malfunction due to damage to the screw or |
| module. |
| When installing more cables, be sure that the base unit and the module |
| connectors are installed correctly. After installation, check them for |
| looseness. Poor connections could cause an input or output failure. |
| Securely load the memory card by pushing it into the memory card |
| loading slot. Check for insecure loading after loading the memory card. |
| Not doing so can cause a malfunction due to a contact fault. |
| Completely turn off the external power supply before loading or |
| unloading the module. Not doing so could result in electric shock or |
| damage to the product. |
| Do not directly touch the module's conductive parts or electronic |
| components. Touching the conductive parts could cause an operation |
| failure or give damage to the module. |
This section gives instructions for handling the CPU, I/O, intelligent function and power supply modules, base units and so on.
(1)Module enclosure, terminal block connectors and pin connectors are made of resin; do not drop them or subject them to strong impact.
(2)Do not remove modules' printed circuit boards from the enclosure in order to avoid changes in operation.
(3)Tighten the module fixing screws and terminal block screws within the tightening torque range specified below.
Location of Screw | Tightening Torque Range |
Module fixing screw (M3 12 screw) | 36 to 48 N • cm |
I/O module terminal block screw (M3 screw) | 42 to 58 N • cm |
I/O module terminal block fixing screw (M3.5 screw) | 66 to 89 N • cm |
Power supply module terminal screw (M3.5 screw) | 66 to 89 N • cm |
(4)Be sure to install the power supply module in the Q3
B, Q6
B and QA1S6
B. Even if the power supply module is not installed, when the I/O modules and intelligent function module installed on the base units are of light load type, the modules may be operated. In this case, because a voltage becomes unstable, we cannot guarantee the operation.
(5)When an extension cable is used, do not bind the cable together with the main circuit (high voltage, heavy current) line or lay them close to each other.
9 - 9 | 9 - 9 |