S7720A-SEF2-PM
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The Kollmorgen S7720A-SEF2-PM digital servo amplifier features three slots for expansion cards. There is an in-built fan for cooling. The first slot has the Sercos II expansion module.
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Product Description:
The Kollmorgen S7720A-SEF2-PM is a digital servo amplifier meant for driving suitable brushless synchronous servomotors, DC motors, and asynchronous motors with control of speed, torque, and/or position. The device should be operated only within a closed control cabinet. The first slot of the unit is equipped with the Sercos II expansion module. Its bus system has a ring topology and it incorporates fiber optical cables. The third slot has the Posl/O extension card. This card provides an additional Sub-D connector (X5).
Commissioning the S700 digital servo amplifier is banned if the machine in which it is installed fails to fulfill the requirements of the EC Machinery Directive, Low Voltage Directive, or EMC Directive. If the packaging of the product is damaged, the user must check the amplifier for visible damage. If there is damage, the shipper and the manufacturer must be informed. The device has electrostatically sensitive parts that are prone to damage from inappropriate handling. The unit comes with a built-in fan equipped with a protective grill. The protective grill can be cleaned using a dry brush. The device is listed under UL file number E217428.
Only 60°C or 75°C copper wires should be used for wiring the S700 digital servo amplifier. The device has a digital current controller. The site altitude of the product is up to 1000 meters above mean sea level without restrictions. The servo amplifier has a 3M1 Vibration Class according to IEC 60721-3-3 specifications. The bandwidth of the current controller of the unit is greater than 1.2 (bis 5) kHz. The device has a residual voltage drop of 6 V at rated current. The height of the product without connectors and shielding plate is 386 mm, and the height with connectors and shielding plate is 505 mm.
Frequently Asked Questions about S7720A-SEF2-PM:
Q: What should be done if the S700 digital servo amplifier is used in residential or commercial areas?
A: If the S700 digital servo amplifier is used in residential or commercial areas, the user must implement additional filter measures.
Q: What kind of wires should be used to wire the S700 digital servo amplifier?
A: Only copper wires should be used to wire the S700 digital servo amplifier. The cross-sections of the copper conductor can be derived from the standard IEC 60204 specifications.
Q: In what kind of environments is the S700 digital servo amplifier prohibited?
A: The use of the S700 digital servo amplifier is prohibited in the following environments: potentially explosive areas, environments with electrically conductive acids, alkaline solutions, vapors, oils, or dust, directly on non-grounded supply networks, on ships, or offshore applications.
Q: What should be done if the storage period of the S700 digital servo amplifier exceeds one year?
A: If the storage period of the S700 digital servo amplifier exceeds one year, its capacitors must be re-formed before setup and operation. This can be done by removing all the electrical connections and applying a single-phase 230 V AC for 30 minutes at the L1 and L2 terminals.
Q: What is the switching frequency of the output stage of the S700 digital servo amplifier?
A: The switching frequency of the output stage of the S700 digital servo amplifier is 8 kHz.
