Part Number:

S7720A-NAF2-S3

Manufacturer: Kollmorgen
Series: S700 Servo Drive Series
  • Rated 4.4 (8 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
  • Call for Expedited Shipping and Product Condition Options
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The Kollmorgen S7720A-NAF2-S3 digital servo amplifier is equipped with the fan controller in the second slot and the Safety card S1-2, SIL 3 in the third slot. The device has a voltage rating of 208 to 480 V.

Part Number:

S7720A-NAF2-S3

Manufacturer: Kollmorgen
Series: S700 Servo Drive Series
  • Rated 4.4 (8 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 Kollmorgen S7720A-NAF2-S3 digital servo amplifier is equipped with the fan controller in the second slot and the Safety card S1-2, SIL 3 in the third slot. The device has a voltage rating of 208 to 480 V.

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Product Description

The S7720A-NAF2-S3 is a digital servo amplifier from Kollmorgen that is operated as an integral component of an electrical plant or machine. The unit has excellent autotuning and cogging suppression qualities. The device features the fastest feedback evaluation. Only copper conductors must be used for wiring the product. The periodic overvoltage between the L1, L2, and L3 phases and the unit’s housing should not exceed 1000 V crest. Shocks must be avoided during the transit of the product. Care should be taken to ensure that the device does not come into contact with highly insulating materials. The unit can be stored for a year without any restrictions.

The S700 digital servo amplifier does not need any maintenance. It should be noted that opening the amplifier invalidates the warranty. The casing of the device can be cleaned using a cleaning agent like isopropanol. The product is listed under the UL file number E217428. This device can cause high-frequency interference in non-industrial environments. In such cases, measures for interference suppression such as additional external EMC filters may be required. The amplifier is fully programmable through the RS232 interface. The ambient transport temperature of the product is -25°C to 70°C.

The rated input power of the S700 digital servo amplifier for continuous operation is 50 kVA. The device has a rated DC bus link voltage of 290 to 675 V. The depth of the unit, without connectors, is 244 mm, and the depth with connectors is 285 mm. Only properly qualified personnel should perform tasks like transport, setup, assembly, and maintenance. These personnel must observe the IEC 60364 and IEC 60664 specifications and the national accident prevention regulations.

S7720A-NAF2-S3 Technical Specifications

Family: S700
Pollution Level: Level 2 as per IEC 60664-1 Specifications
Current Rating: 72 Arms
Transport Temperature: -25 to +70°C
Weight: 13 kg
Product Dimensions: 390 x 600 x 400 mm
Mounting Position: Vertical
Expansion Card in Slot 2: Fan Controller
Memory Card: Yes
Maximum Transport Humidity: 95%

Frequently Asked Questions about S7720A-NAF2-S3


Q: What should be done if the S700 digital servo amplifier is used in residential areas?

A: If the S700 digital servo amplifier is used in residential areas, the user must implement additional filter measures for safety.

Q: What supply network should be supplied to the S700 digital servo amplifier?

A: The S700 digital servo amplifier should be supplied with a 3-phase grounded industrial supply network.

Q: In what equipment is the commissioning of the S700 digital servo amplifier prohibited?

A: The commissioning of the S700 digital servo amplifier is prohibited if the equipment in which it is installed fails to fulfill the requirements of the EC Machinery Directive, the Low Voltage Directive, and the EMC Directive.

Q: What is the residual voltage drop of the S700 digital servo amplifier at the rated current?

A: The residual voltage drop of the S700 digital servo amplifier is 6 V at the rated current.

Q: What happens if the S700 digital servo amplifier is not handled properly?

A: If the S700 digital servo amplifier is not handled properly, it can cause injury to people and/or damage to property.

Internal Product Review

  • ‘‘The Kollmorgen S7720A-NAF2-S3 is a high-performance digital servo amplifier that comes with a nameplate attached to its housing for identification.’’

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