S7720C-DNF2-S4

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The Kollmorgen S7720C-DNF2-S4 digital servo amplifier can be used with three feedback systems at a time. This servo amplifier incorporates shielding or insulation as a built-in protection measure. It must be operated with the door of the control cabinet closed.

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Product Description:

The Kollmorgen S7720C-DNF2-S4 digital servo amplifier must be re-formed if it has been in storage for more than a year. This servo amplifier must be operated with the control cabinet closed. The product portrays a 1K4 storage class according to EN 61800-2 and EN60721-3-1 specifications. This device must have adequate free space above and below it inside the switchgear cabinet. The unit has a tightening torque of 0.5 Nm for its mounting flange. Its PC interface connector is a male SubD 9-pole connector with a maximum cross-section of 0.5 mm2. This amplifier comes with Ethernet connectivity onboard.

The product can be paired with different types of motors from the manufacturer. The device is also compatible with a third-party stepper motor controller. This unit may cause unfavorable consequences such as property damage or personnel injury if it is not used as intended. Its electrical installation must be undertaken only by people with expertise in electrical engineering. The amplifier should be installed, commissioned, and operated only after reading and understanding its manual. This product is likely to get damaged if its permissible voltage and current ratings are exceeded.

The device is prevented from unintentional restart by means of the STO function. This unit has a separate switching action for each STO enable input by the output of a safety control. It must be operated through an isolating transformer when protection against indirect contact is essential although an alternative form of shock-hazard protection is sought. The servo amplifier comprises several electrostatically sensitive components. This product must incorporate a copper mesh tape between the earth potential and earthing bolts to deflect currents in unfavorable situations.

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

Frequently Asked Questions about S7720C-DNF2-S4:

Q: How many LEDs does the DeviceNet expansion card of the S700 amplifier have?

A: The DeviceNet expansion card of the S700 amplifier has five LEDs.

Q: Does the S700 amplifier have an integrated power supply?

A: Yes, the S700 amplifier has an integrated power supply that allows it to be installed in a small-size switchgear cabinet.

Q: What is the maximum DC link voltage of the S700 amplifier?

A: The maximum DC link voltage of the S700 amplifier is 900 V.

Q: How is the status of the enable inputs of the STO function of the S700 amplifier reported?

A: The status of the enable inputs of the STO function of the S700 amplifier is reported by pins 6 and 8 on the X4 connector.

Q: What is the current rating of the BTB/TO relay output of the S700 amplifier?

A: The current rating of the BTB/TO relay output of the S700 amplifier is 0.5 A.


Internal Product Review

  • ‘‘S7720C-DNF2-S4 is a digital servo amplifier with inbuilt insulation and support for up to three feedback systems.’’

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