» Fully Digital Controller.
» Self Commisssioning.
» Adaptive pulse triggering and gain switching with a very fast sampling rate to achieve fast response.
» Phase Locked Loop ( PLL) technique for synchronized zero crossing signal.
» Compensation for input line voltage and frequency variation.
» Auto mains synchronization.
» Common controller fro single, two or four quadrant operations.
» 32 character alphanumeric display for viewing of drive status and parameters from a distance.
» Parameter editing and drive programming.
» Seven segment display for viewing of drive status and parameters from a distance.
» EEPROM for parameter storage.
» Extensive self diagnostics.
» Fault discrimination.
» Fault history.
» Analog/ Digital speed reference setting.
»Encoder/ Tacho/ Armature feedback facility.
»Multiple isolated analog input / outputs for drive signal interface.
»Two isolated PWM outputs for meeting
» Start/ Stop facility through keypad with LED indication.
» Galvanic isolation of controller ground.
» Four layer printed circuit board (PCB) for compact packaging, increased reliability and better noise immunity.
» Easy serviceability with hinged construction and front accessibility.
» Large number of programmable features such as selection of regenerative/ non- regenerative operation, bypassing ramp, selection of reference and feedback types, selection of application modules bypassing speed loop, bypassing inch ramp, programmable digital outputs for output faults and status, programmable analog outputs for different signals, bypassing of ramp for auxiliary input, bypassing of ramp during stop, selection of encoder as reference or feedback, selection of current limit control, current control, ratio control, thumbwheel ratio setting, crawl to run changeover drive status on LED display etc.
» Speed ramp rate control through analog signal.
» Current reference control through analog signal.
» Current limit control through analog signal (4 to 20 mA or 0-10 V)
» Auxiliary speed reference setting with adjustable gain and ramp time.
» Raise / Lower operation.
» Inch./Crawl operation.
» Local / Remote reference selection.
» Master follower operation.
» Automatic feedback changeover.
» From Encoder to Tacho feedback
» From encoder to Armature feedback
» From Tacho to Armature feedback
» From Encoder to Tacho to Armature feedback.
» Adjustable rate of rise of current reference single.
» Ratio control.
» Stretch control
» RS 232/485 Serial Communication.
» BASIC HARDWARE :
» Control PCB containing 16 bit microprocessors associated interface and firing logic.
» Signal interface circuit containing signal conditioning, conversion circuits and status indication LEDS for digital I/O.
» Display board containing 32 character LCD display and 4 character, seven segment display with keypad.
» I/O termination PCB.
» Switch mode power supply PCB.
» Power board with pulse transformers and other interface components.
ELECTRICAL SPECIFICATIONS
AC Input Voltage : 415,+/- 10% 3 Phase, 3 wire
Frequency : 47 Hz to 63 Hz. DC OUTPUT
Armature Voltage : 400/440/460V
Current : upto 3200A
Field Voltage : 220 V or 180 V typical
ENVIRONMENTAL SPECIFICATIONS
Ambient temp. : 0 to 50 Deg.C.
Humidity : Upto 3200A
Non-condensing.
Altitude : Upto 1000m above MSL
Storage Temperature : -10 to + 65 Deg.C
FEATURES
SAFETY AND PROTECTION
PLL circuit for providing immunity from line transients and distortion.
Automatic electronic trip and high speed pulse inhibition under faults such as:
Phase fail
Field fail
Instantaneous over current
AC under voltage
DC over voltage
Main under / over frequency
Motor overspeed
Feedback fail / reverse
DC loop open
Inverse time overload
Motor stall
PLL Unlock
Hardware watch dog trip
External fault
Software security for drive parameters.
A programming mode key with LED indication.
Prevents changes being made to parameters unintentionally.
Earthing stud for safe operation of equipment.
Galvanically isolated control and signal Interface cards.
