3) Connection to PLC (when external thermal O/L relay is used)
| MCCB FUSE | P | P(+) P(+) | External thermal O/L relay | |
L1/R |
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| U |
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input series | L2/S |
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| V | M |
200 to 230V | L3/T |
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| W | 3~ |
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50/60Hz | G |
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| G |
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| To X2 To CM terminal | ||
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| terminal |
MCCBFUSE | PRG | RUN |
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L1/L | RESET |
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230V input series | FUNC | STOP |
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| DATA |
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200 to 240V | L2/N |
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50/60Hz |
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| Frequency setting POT (VR) |
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| 13 |
| +10Vdc |
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| Analog meter | |
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| 12 | 22kΩ | Pulse output | FM | Analog monitor | ||
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| 11 |
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| 0V |
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| C1 | 250Ω | EXT |
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| To ground terminal | |||
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| +24 to +27Vdc |
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| 30A | |||
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| INT |
| To 11 terminal | |
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| 4.7k Ω |
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| 30B | Alarm output for any fault | |
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| FWD |
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| REV |
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| 30C |
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| X1 |
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| X2 |
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| SW7 |
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| (THR) X3 |
| INT |
| PLC |
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| 24dcV | X3 |
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| CMPLC |
| EXT |
| X3 |
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| 0V |
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| 2 |
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| 1 |
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P L C |
| To ground terminal |
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External thermal O/L relay
24Vdc : PLC power supply
Figure 2-3-11 Connection example of PLC terminal (using THR function terminal)
*1 Connect the X3 terminal to the PLC power supply of 24Vdc in common and do not connect the CM and 11 terminals to the PLC common. This is to prevent the FWD and REV terminals from turning on due to sneak path current if the PLC power supply is turned off.
*2 With this connection, because the internal power of the drive can be supplied to the external thermal O/L relay, OH2 trip is not activated by PLC
*3 Set SW7 switch 1 to INT and 2 to PLC.
*4 When the X3 terminal is used as the PLC terminal, no function that can be set with E03 can be used. The X3 terminal is dedicated to the PLC.