Whether the terminal block is removable or not differs depending on the series. Types of the terminal blocks for the MEL

The thickness of wire should be 2 square millimeters or more, and class D grounding (grounding resistance: 100 Ω or less

The output contact is activated according to the change of the current value register along with the counting input. The

FX3U series expansion boards can be added to FX3UC-32MT-LT and FX3UC-32MT-LT2.

We recommend you to connect a diode for commutation to the DC load, and surge absorber (C-R) to the AC load for the prot

No, they cannot be connected. Connect the units having the same power supply type.

Check whether the lamp is back to normal after disconnecting the wiring of the "24V" (service power supply) terminal. I

For the MELSEC-F series, only DC power supply type can use an external power supply.

Day of week is automatically set. When data written to the data register for storing day-of-the-week data is within the

Each special function unit/block has 8 occupied points, except for some special function devices. These 8 points do no

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FAQ within [ Main Unit ]

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Terminal blocks for the MELSEC-F series

Whether the terminal block is removable or not differs depending on the series. Types of the terminal blocks for the MELSEC-F series main units are as follow... More Details >>
- No：24774
- Release Date：2019/02/27 15:34
Thickness of ground wire

The thickness of wireshould be2 square millimeters or more, andclass D grounding (grounding resistance: 100 Ω or less) should be performed. More Details >>
- No：24899
- Release Date：2019/04/15 11:30
Overwriting a current value with the high-speed counter comparison instruction

The output contact is activated according to the change of the current value register along with the counting input. Therefore, the value changed by executin... More Details >>
- No：24931
- Release Date：2019/04/17 11:43
Adding FX3U series expansion boards to an FX3UC series main unit

FX3U series expansion boards can be added to FX3UC-32MT-LT and FX3UC-32MT-LT2. More Details >>
- No：24963
- Release Date：2019/04/23 07:18
Protection components of relay contacts

We recommend you to connecta diode for commutation to the DC load, and surge absorber (C-R) to the AC load for the protection of the relay contacts. More Details >>
- No：24999
- Release Date：2019/04/23 10:39
Connecting a DC power supply type extension unit to an AC power supply type main unit

No, they cannot be connected. Connect the units having the same power supply type. More Details >>
- No：25008
- Release Date：2019/04/23 11:12
The power supply lamp of a running programmable controller suddenly turned off or flashes

Check whether the lamp is back to normalafter disconnecting the wiring of the "24V" (service power supply) terminal. Ifthe lamp is back to normal,the servic... More Details >>
- No：22267
- Release Date：2018/08/30 13:48
- Update：2019/02/19 11:53
External power supply for input(MELSEC-F)

For the MELSEC-F series, only DC power supply type can use an external power supply. More Details >>
- No：22268
- Release Date：2018/08/30 13:48
Setting day of the week when using the TWR instruction (FX3 series)

Day of week is automatically set. When data written to the data register for storing day-of-the-week data is within the setting range (K = 0 to 6), the day ... More Details >>
- No：24777
- Release Date：2019/02/27 15:57
Number of occupied points of special function devices

Each special function unit/block has 8 occupied points, except for some special function devices. These 8 points do not occupy 8 points of the actual I/O n... More Details >>
- No：24873
- Release Date：2019/04/15 08:06

1-10 of Total 126

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