Supply input, Servo control, Supply input 2.2.3. servo control – ElmoMC Gold Line Digital Servo Drives-Gold Bell User Manual
Page 12
Gold Bell Installation Guide
Product Description
MAN-G-BELIG (Ver. 1.004)
12
2.2.2.
Supply Input
•
Single DC Power Supply: Power to the Gold Bell is provided by a single 12 V to 95 V isolated
DC power source (not included with the Gold Bell). A “smart” control-supply algorithm
enables the Gold Bell to operate with only one power supply with no need for an auxiliary
power supply for the logic.
•
Optional Backup Supply: If backup functionality is required in case of power loss, e.g., to
keep the original position, an external 12 V to 95 V isolated supply should be connected.
This is more flexible than the requirement for 24 VDC supply.
If backup is not needed, a single power supply is used for both the power and logic circuits.
There are multiple voltage ratings of the Gold Bell (12 V to 95 V), so you must use the correct
power supply according to the maximum operating voltage of the Gold Bell. See Section
Chapter 3: Technical Information.
2.2.3.
Servo Control
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Advanced and extremely fast vector control algorithm (current loop bandwidth: 4 kHz)
•
Current/Torque sampling rate: up to 25 kHz (40 μs)
•
Velocity sampling rate: up to 12.5 kHz (80 μs)
•
Position sampling rate: up to 12.5 kHz (80 μs)
•
Electrical commutation frequency: up to 4 kHz
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Current closed loop bandwidth exceeds 4 kHz
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Position/Velocity/Acceleration command range – full 32 bit
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Position over velocity, with full dual loop support
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Current gain scheduling to compensate for the motor’s non-linear characteristics
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Advanced filtering: Low pass, Notch, General Biquad
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Current loop gain scheduling to compensate for bus voltage variations
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Velocity gain scheduling for ultimate velocity loop performance
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Gains and filter scheduling vs. position for mechanical coupling optimization, speed and
position tracking errors
•
High order filters gain scheduling vs. speed and position
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S-curve Profile Smoothing
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Cogging, BEMF and
ω
xL compensation
•
Dual Loop Operation supported by Auto Tuning
•
Fast, easy and efficient advanced Auto Tuning
•
Incremental encoder frequency of up to 75 Megacounts/sec