Control Features - Parker 590+ DRV Product Manual

2-2
Product Overview

Control Features

Control
Control Circuits
Output Control
Control Action
Speed Control
Speed Range
Steady State Accuracy
Adjustments
Protection
Diagnostics
Table 2-1 Control Features
Fully isolated from power circuit (SELV)
• Fully controlled 3-phase thyristor bridge
• Microprocessor implemented phase control extended firing range
• For use on 50 or 60Hz supplies with a frequency compliance range of 45 to 65Hz
• Phase control circuits are phase rotation insensitive
• Fully digital
• Advanced PI with fully adaptive current loops for optimum dynamic performance
• Self Tuning Current Loop utilising "Autotune" algorithm
• Adjustable speed PI with integral defeat
• By Armature Voltage feedback with IR compensation
•
By Encoder feedback or analog tachogenerator
100 to 1 typical with tachogenerator feedback
• 0.01 % Encoder Feedback with Digital setpoint (serial link or P3)
• 0.1 % Analog Tach Feedback
• 2 %
Voltage Feedback
NOTE
Long term analog accuracy is subject to tachogenerator temperature stability.
All adjustments in software can be altered by the Keypad or via serial communications. The Keypad provides
monitoring and adjustment of parameters and levels, in addition to diagnostic facilities.
• High energy MOVs
• Overcurrent (instantaneous)
• Overcurrent (inverse time)
• Field failure
• Speed feedback failure
• Motor overtemperature
• Fully computerised with first fault latch and automatic display
• Digital LCD monitoring
• Full diagnostic information available on RS422/RS485
•
LED circuit state indication
• Thyristor Stack overtemperature (Force ventilated units)
• Thyristor "Trigger" failure
• Thyristor Snubber Network
• Zero-speed detection
•
Standstill logic
•
Stall protection
DC590+ DRV Series DC Digital Drive