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Accurax G5 servo systems
Servo Drive Specifications
Control mode 7 modes selectables by parameter: (1) position control, (2) velocity control, (3) torque control, (4) position/velocity
control, (5) position/torque control, (6) velocity/torque control and (7) full-closed control.
Speed/
torque
control
Performance
Frequency characteristics 2 kHz
Speed zero clamp Preset velocity command can be clamped to zero by the speed zero clamp input.
Soft start time setting 0 to 10 s (acceleration, deceleration can be set separately). S-curve acceleration/deceleration is also available.
Input
signal
Speed control
Speed reference voltage 6 VDC at rated speed: set at delivery (the scale and polarity can be set by parameters).
Torque limit 3 VDC at rated torque (torque can be limited separately in positive/negative direction).
Preset speed control Preset speed is selectable from 8 internal settings by digital inputs.
Torque control
Torque reference voltage 3 VDC at rated torque: set at delivery (the scale and polarity can be set by parameters).
Speed limit Speed limit can be set by parameter.
Position
control
Input
signal
Command
pulse
Input pulse type Sign + pulse train, 90° phase displacement 2-phase pulse (A-phase+ B-phase) or CCW/CW pulse train.
Input pulse frequency 4 Mpps max. (200 Kpps max. at open collector).
Command pulse scaling
(Electronic Gear)
Applicable scaling ratio: 1/1000 - 1000
Any value of 1-2020 can be set for numerator (encoder resolution) and denominator (command pulse resolution
per motor revolution). The combination has to be within the range shown above.
Full-closed
control
Input
signal
Command
pulse
Input pulse type Sign + pulse train, 90° phase displacement 2-phase pulse (A-phase+ B-phase) or CCW/CW pulse train.
Input pulse frequency 4 Mpps max. (200 Kpps max. at open collector).
Command pulse scaling
(Electronic Gear)
Applicable scaling ratio: 1/1000 - 1000
Any value of 1-2020 can be set for numerator (encoder resolution) and denominator (command pulse resolution).
The combination has to be within the range shown above.
External encoder scaling
Applicable scaling ratio: 1/20 - 160
Any value of 1-2020 can be set for numerator (encoder resolution) and denominator (external encoder resolution
per motor revolution). The combination has to be within the range shown above.
I/O signal
Position signal output A-phase, B.phase, Z-phase line driver output and Z-phase open-collector output.
Sequence input signal
Multi-function input x 10 by parameter setting (servo ON, control mode switching, forward/reverse drive
prohibition, vibration lter switching, gain switching, electronic gear switching, error counter reset, pulse
prohibition, alarm reset, internal speed selection, torque limit switching, zero speed, emergency stop, inertia ratio
switching, velocity/torque command sign). Dedicated input x 1 (SEN: sensor ON, ABS data request).
Sequence output signal
It is possible to output four types of signal form incl.: brake release, servo ready, servo alarm, positioning
complete, motor rotation speed detection, torque limit detection, zero speed detection, speed coincidence
detection, warning, position command status, speed limit detection, speed command status.
Integrated
functions
USB
Communications
Interface Personal computer/ Connector mini-USB
Communications standard Compliant with USB 2.0 standard
Function Parameter setting and status monitoring
Automatic load inertia detection Automatic motor parameter setting. One parameter rigidity setting.
Dynamic brake (DB) Built-in. Operates during main power OFF, servo alarm, servo OFF or overtravel.
Regenerative processing Internal resistor included in models from 600 W to 5 kW. Regenerative resistor externally mounted (option).
Overtravel (OT) prevention function DB stop, deceleration stop or coast to stop during P-OT, N-OT operation
Encoder divider function Optional division possible
Electronic gearing (Numerator/Denominator) Up to 4 electronic gear numerators by combining with inputs.
Internal speed setting function 8 speeds may be set internally
Protective functions Overcurrent, overvoltage, undervoltage, overspeed, overload, encoder error, overheat...
Analog monitor functions for supervision
Analog monitor of motor speed, speed reference, torque reference, command following error, analog input...
The monitoring signals to output and their scaling can be specied by parameters.
Number of channels: 2 (Output voltage: ±10V DC)
Panel operator Display functions 6-digit 7-segment LED display shows the drive status, alarm codes, parameters...
Switches Used to set/monitor parameters and drive condition (5 key switches).
CHARGE lamp Lights when the main circuit power supply is turned ON.
Safety terminal
Functions Safety torque OFF function to cut off the motor current and stop the motor.
Output signal for failure monitoring function.
Conformed standards EN ISO13849-1:2008 (PL- d, Performance Level d), IEC61800-5 -2:2007 (function STO, Safe Torque OFF),
EN61508:2001 (Safety Integrity Level 2, SIL2), EN954-1:1996 (CAT3).
External encoder feedback Serial signal and line-driver A-B-Z encoder for full-close control
Expansion connector Serial bus for option board
General specifications (for analog/pulse servo drives)