Part Number: S7720C-SEF2-S4
Manufacturer: Kollmorgen
Series: S700 Servo Drive Series
  • Rated 4.3 (20 total ratings)
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The S7720C-SEF2-S4 digital servo amplifier from Kollmorgen comes with Ethernet connectivity onboard. This servo amplifier has many safety related functions. Its STO outputs are floating outputs.

Part Number: S7720C-SEF2-S4
Manufacturer: Kollmorgen
Series: S700 Servo Drive Series
  • Rated 4.3 (20 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
  • Call for Expedited Shipping and Product Condition Options
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The S7720C-SEF2-S4 digital servo amplifier from Kollmorgen comes with Ethernet connectivity onboard. This servo amplifier has many safety related functions. Its STO outputs are floating outputs.

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Product Description

The S7720C-SEF2-S4 digital servo amplifier from Kollmorgen should be used in combination with a suitable motor to avoid getting damage. This servo amplifier produces a high electric voltage during the operation phase. The product comes with Ethernet connectivity onboard. This device is equipped with a SERCOS 2 expansion card. The unit must at no time be used at a temperature higher than 55 °C. It must be re-formed when the storage period is over a year. This amplifier is environment-friendly because it is free of any hazardous substances.

The product uses fiber optic cables connected to the X13 and X14 connecting points with a F-SMA connector to receive and transmit data respectively. This device has separate LED indicators on its SERCOS 2 expansion card to indicate receiving and transmitting of telegrams. The unit portrays stop, emergency stop, and emergency off functions. It has three Stop categories and the category to be implemented is determined by the risk evaluation of the machine. This amplifier also supports a dual channel STO function.

The product shuts down the machine as fast as possible in a dangerous situation when the emergency stop function is implemented. This device requires very little wiring for the STO safety function. The unit may cause personnel injury due to dangerous movement if it is not handled properly. It has several warning signs on its housings and the machine in which it is installed that must be replaced if they are found to be damaged. This servo amplifier displays the F27 code on its LED display if the STO enable inputs are separated from the 24 VDC resulting in the motor running out of control.

S7720C-SEF2-S4 Technical Specifications

Product Group: S700
Maximum Ambient Installation Altitude: 1000 m Above Sea Level
STO Enable Inputs: 2
STO Status Outputs: 2
Maximum DC Bus Link Voltage: 900 V
Slot 1 Expansion Card: Sercos
Slot 2 Expansion Card: Fan Control
Slot 3 Expansion Card: S2-2, SIL 2 Safety Card
Electrical/Mechanical Option: Coldplate
Maximum Ambient Operating Temperature: 40 °C

Frequently Asked Questions about S7720C-SEF2-S4


Q: What happens if the baud rate of the Sercos interface of the S700 amplifier is not set correctly?

A: Communication is not possible if the baud rate of the Sercos interface of the S700 amplifier is not set correctly.

Q: How can the SBAUD # and SLEN # parameters of the S700 amplifier be modified?

A: The SBAUD # and SLEN # parameters of the S700 amplifier can be modified through the SERCOS screen of the setup software.

Q: How is the fiber optic cable for the data output of the S700 amplifier connected?

A: The fiber optic cable for the data output of the S700 amplifier is connected to the X14 connecting point using a F-SMA connector.

Q: What happens when the SS1 function of the expansion card of the S700 amplifier is executed?

A: When the SS1 function of the expansion card of the S700 amplifier is executed, the amplifier is stopped by controlled braking and the power supply to the motor is interrupted safely.

Q: What is the voltage resolution of the analog outputs of the S700 amplifier?

A: The voltage resolution of the analog outputs of the S700 amplifier is 0.38 mV.

Internal Product Review

  • ‘‘S7720C-SEF2-S4 is a digital servo amplifier with floating STO outputs and multiple safety related functions.’’

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