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Overvoltage sensor for switchings of power supplies
The overvoltage sensor protects downstream consumers from defects of power supply with the help of a ramp-up supply voltage.
| Specification: | |
| Two OVP switchings (for + and -) on one printed circuit board | |
| Voltage range up to +34 Volt resp. -34 Volt DC | |
| All switching outputs are opto-coupled. | |
| Each branch has two outputs (thyristor output for the short circuit of the output voltages and for the shut-down of the mains voltage via relays). | |
| The shut-down time (until the firing of the thyristor) amounts about 40 microseconds. | |
| For the operation a auxiliary voltage of +5 Volt is necessary. | |
Three versions are available:
| |
| For the adjustment of the trigger voltage only a multimeter is necessary. |
| Component placement of the OVP printed circuit board: | ||
| Ports: (Pin strips RM2.54; pins towards solder side; pins 0.6x0.6 mm) |  | |
 | ||
| CON1 - 1 | Input voltage positive | |
| CON1 - 2 | 0 Volt | |
| CON1 - 3 | Input voltage negative | |
| CON1 - 4 | Actuation thyristor | |
| CON2 - 1 | Auxiliary voltage + 5Volt | |
| CON2 - 2 | OVP signal |
Circuit diagram of a OVP printed circuit board:
| Shut-down behavior: | ||
| (Switching with suppressor diodes, short-circuit thyristor and additional relay for the shut-down of the mains voltage) | ||
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| Overvoltage sensor (OVP 6 Volt) | Article no 073 000 1/6 |
| Overvoltage sensor (OVP 12 Volt) | Article no 073 000 1/12 |
| Overvoltage sensor (OVP 24 Volt) | Article no 073 000 1/24 |