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| E6581381 |
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| Terminal | Input/output | Function | Electrical | Inverter internal circuits |
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| Multifunction programmable relay contact |
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| output. |
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| (cosφ=1) |
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| FLA |
| Detects the operation of the inverter's |
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| : at resistance load |
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| FLB | Output | protection function. |
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| FLC |
| Contact across |
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| FLC is opened during protection function |
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| (cosφ=0.4) |
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| operation. |
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2 |
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| Multifunction programmable relay contact |
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| output. |
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| (cosφ=1) |
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| Standard default settings detect and |
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| RY |
| : at resistance load |
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| Output | output |
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| RC |
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| frequencies. |
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| Multifunction output terminals to which two |
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| different functions can be assigned. |
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■SINK (Negative) logic/SOURCE (Positive) logic (When the
inverter's internal power supply is used)
Current flowing out turns control input terminals on. These are called sink logic terminals.
The general used method in Europe is source logic in which current flowing into the input terminal turns it on.
Sink logic is sometimes referred to as negative logic, and source logic is referred to as positive logic. Each logic is supplied with electricity from either the inverter's internal power supply or an external power supply, and its connections vary depending on the power supply used.
<Examples of connections when the inverter's internal power supply is used>
Slide switch SW4:SINK
Sink (Negative) logic
24VDC
Output F
Common CC
ProgrammableInverter controller
Slide switch SW4:SOURCE
Source (Positive) logic
Input |
| 24VDC |
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Common | P24 | Input | |
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Output F
ProgrammableInverter controller
