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S7720C-DNF2-PM

  • Rated 4.6 (8 total ratings)
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5 Minutes 20 Seconds

The S7720C-DNF2-PM digital servo amplifier from Kollmorgen must be wired according to the steps given for electrical installation in its manual. This servo amplifier supports three ways of setting the transmission speed of the DeviceNet expansion card. Its bus cable has 64 nodes.

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Product Description

The S7720C-DNF2-PM digital servo amplifier from Kollmorgen must be free of stress during the operation phase. This servo amplifier must be used in commercial enterprises or residential areas only after implementing additional filter measures. The product must not have a transient overvoltage of more than 1000 V between its outer conductors for less than 50 µs. This device features a pollution level 2 according to EN 60664-1 specifications. This device may get destroyed if the DC bus link voltages are different. The unit that works generatively often should be placed near an amplifier that needs energy. It is possible to connect an external brake resistor at the X8 connector. This amplifier produces a high DC voltage of up to 900 V when it is operated.

The product protects the connected motor from overloading when the thermal protection sensor is connected and its parameters have been set correctly. This device supports up to three feedback systems at a time. The unit needs start-up information for the integrated position controller whenever the 24 V auxiliary voltage is turned on if a 5 V incremental encoder is used. It is important to ensure that when unshielded cores are used, the cable length is not more than 500 mm.

This amplifier has a rated output current of 72 Arms with a tolerance of +/-3%. The product features a BTB/RTO output relay contact with a maximum voltage rating of 30 VDC / 42 VAC and a current rating of 500 mA. This device shuts down after displaying the F01 or F13 code when the temperature inside the cabinet is very high. The unit depicts a 4 A current rating for its 24 V electronics. Its motor cable has a capacitance of less than 150 pF/m. This servo amplifier offers fast feedback evaluation.

S7720C-DNF2-PM Technical Specifications

Series: S700
Output Stage Switching Frequency: 8 kHz
Onboard EMC Filters: Yes
STO Safety Concept Certification: TUV
Feedback Cable Type: Prefabricated
Nameplate Location: Side of Housing
EMC Filters: Yes
STO Status Outputs: 2
Expansion Card in Slot 3: PosI/O
Residual Voltage Drop: 6 V

Frequently Asked Questions about S7720C-DNF2-PM


Q: Why should there be no condensation on the S700 amplifier?

A: There should be no condensation on the S700 amplifier as the condensation can destroy its electronics.

Q: What is the cooling temperature of the S700 amplifier after it has been disconnected from the power supply?

A: The cooling temperature of the S700 amplifier after it has been disconnected from the power supply is below 40 °C.

Q: What is the storage temperature range of the S700 amplifier?

A: The storage temperature range of the S700 amplifier is -25 °C to 55 °C.

Q: How is the protective grill on the fan of the S700 amplifier cleaned?

A: The protective grill on the fan of the S700 amplifier is cleaned using a dry brush.

Q: Who can decommission the S700 amplifier?

A: Professionals qualified in electrical engineering can decommission the S700 amplifier.

Internal Product Review

  • ‘‘S7720C-DNF2-PM is a digital servo amplifier with a DeviceNet expansion card and 64 nodes for its bus cable.’’

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