Rockwell Automation Publication 520-TD002A-EN-E - May 2015 9
PowerFlex 527 AC Drive Specifications
Control
Control Inputs
Specifications PowerFlex 527
Method • Frequency Control:
– Volts per Hertz (V/Hz)
– Sensorless Vector Control (SVC)
– Sensorless Vector Control (SVC) Economizer
• Position Loop:
– Closed Loop Position Vector Control (with optional encoder card)
• Velocity Loop:
– Closed Loop Velocity Vector Control (with optional encoder card)
Carrier Frequency 2...8 kHz, Drive rating based on 4 kHz
Frequency Accuracy
Digital Input:
Analog Input:
Analog Output:
Within ±0.05% of set output frequency
Within 0.5% of maximum output frequency, 10-Bit resolution
±2% of full scale, 10-Bit resolution
Performance
V/Hz (Volts per Hertz):
SVC (Sensorless Vector):
SVC Economizer:
±1% of base speed across a 60:1 speed range
±0.5% of base speed across a 100:1 speed range
±0.5% of base speed across a 100:1 speed range
Performance with Encoder
Closed Loop Velocity Vector Control: ±0.1% of base speed across a 100:1 speed range
Output Voltage Range: 0V to rated motor voltage
Output Frequency Range: 0...500 Hz (programmable)
Efficiency: 97.5% (typical)
Stop Modes: Multiple programmable stop modes including – Disable & Coast, Current Decel & Disable, and Ramp Decel & Hold
Accel/Decel: “REAL” tag programmable with Studio 5000 motion instructions.
For more information see the Logix5000 Motion Controllers Instructions Reference Manual, publication MOTION-RM002
.
Intermittent Overload
Normal Duty:
Heavy Duty:
110% Overload capability for up to 60 s, 150% for up to 3 s
Applies for power rating above 15 kW (20 HP) only. Based on 480V drive rating.
150% Overload capability for up to 60 s, 180% for up to 3 s (200% programmable)
Specifications PowerFlex 527
Digital Bandwidth: 10 Rad/s for open and closed loop
Quantity: (4) Programmable
Current: 6 mA
Type
Source Mode (SRC):
Sink Mode (SNK):
18...24V = ON, 0...6V = OFF
0...6V = ON, 18...24V = OFF
Analog Quantity: (2) Isolated, ±10V and 4-20 mA
Specification
Resolution:
±10V DC Analog:
4-20 mA Analog:
External Pot:
10-bit
100k ohm input impedance
250 ohm input impedance
1...10k ohm, 2 W minimum
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