Home Kollmorgen S600 Servo Drive Series SERVOSTAR-620-AS

SERVOSTAR-620-AS

Name: SERVOSTAR-620-AS
Brand: Kollmorgen
Price: 199 USD
Rating: 4.3 (13 reviews)

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The SERVOSTAR-620-AS is an amplifier (servo) designed for industrial tasks, offering high precision motion control and enhanced safety features. It can handle a differential input voltage of ~10 V with a ground reference at terminal X3/7 and a rated input resistance of 2.4 k1/2.

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Description
Specs
FAQ

Product Description

The SERVOSTAR-620-AS is a servo amplifier for industrial applications, which combines high precision motion control with high level of safety. It provides differential input voltage of + 10 to -10 V with ground potential at terminal X3/7 and 2.4 K ohm input resistance. The amplifier has a common mode voltage range of + 10 V to 10 V and an operating update rate of 62.5 us, thus restoring the control signal in a quick manner. This setpoint ramps feature provides users with the ability to constrain the rate at which the speed setpoint is allowed to change, providing for gradual increases and decreases in the motor speed.

Thermal management is a prominent function of the SERVOSTAR 620-AS and this incorporates thermosensitive devices such as PTCs embedded in the motor winding for gauging as well as controlling system temperature. The SSI-interface features output null position, whereby absolute serial position information is provided in any static or dynamic mode of operation. Adjustment of maximum/speed limit (final speed) is also managed, with the parameters offsets maintained at ~ 10 V for accuracy in speed control. Internal non-operational temperature is less than 55 degrees centigrade with an external heat sink of the fan being less than 60 degrees centigrade heat sink temperature. The internal brake resistor is capable of expending approximately 20W in operation with the fan not running.

There is one basic remark worth making regarding the restart lock: it does not ensure electrical separation and isolation of the power output. If asked to, the motor power terminals can be accessed, with one condition that full voltage isolation of the servo amplifier power supply from the mains must be done taking into consideration the discharge time of the intermediate circuit.

SERVOSTAR-620-AS Technical Specifications

Differential-input voltage max.:	~ 10 V
Tn, I-integration time:	Integral component of a control loop
SSI-interface:	Cyclically absolute, serial position output
Limit speed (final speed):	Maximum value for speed normalization at ~10 V
Internal temperature (Fan off):	< 55C
Heat sink temperature (Fan off):	< 60C
Brake resistor (internal) (Fan off):	< 20W
Ground reference AGND:	terminal X3/7
Input resistance:	2.4 k
Common-mode voltage range for both inputs:	~ 10 V
Update rate:	62.5 us
Setpoint ramps:	Limits for the rate of change of the speed setpoint
Supply filter:	Device to divert interference on the power supply cables to PET
Thermal control:	Temperature-sensitive device built into the motor winding (usually a PTC)
Thermal control:	Temperature-sensitive device built into the motor winding (usually a PTC)

Frequently Asked Questions about SERVOSTAR-620-AS

Q: What are the input voltage specifications for the SERVOSTAR 620-AS?

A: The amplifier accepts a differential input voltage of ~10V with a ground potential at terminal X3/7 and has an input resistance of 2.4 k1/2. It operates with a common mode voltage range of ~10V.

Q: How does the SERVOSTAR 620-AS handle thermal management?

A: The amplifier uses thermosensitive devices like PTCs embedded in the motor winding to monitor and control system temperature. Internal temperatures are kept below 55C, with the external heat sink staying below 60C. The internal brake resistor dissipates around 20W without the fan running.

Q: What is the update rate of the SERVOSTAR 620-AS, and how does it affect control?

A: The amplifier has an update rate of 62.5 us, allowing for quick restoration and processing of control signals, which ensures precise and responsive motor control.

Q: What features does the SERVOSTAR 620-AS offer for speed control?

A: The amplifier includes setpoint ramps that control the rate of speed changes, allowing for gradual acceleration and deceleration. The speed limit can be adjusted with parameters maintained at ~10V for accurate speed control.

Q: What precautions should be taken regarding the restart lock feature of the SERVOSTAR 620-AS?

A: The restart lock does not ensure electrical isolation of the power output. Before accessing motor power terminals, full voltage isolation of the servo amplifier from the mains must be ensured, considering the discharge time of the intermediate circuit.

Internal Product Review

‘‘The SERVOSTAR-620-AS internal brake resistor can dissipate approximately 20 W when the fan is off. It's important to note that the restart lock does not ensure electrical separation, so motor power terminals should only be accessed after ensuring complete voltage isolation from the mains, considering the discharge time of the intermediate circuit.’’