G-Series servo drive 105
AC Servo systems
MECHATROLINK-II servo drive specifications
Analog/pulse servo drive specifications
Position/Speed/torque control mode
Performance
Speed variance Load variance During 0 to 100% load ±0.01 max. (at rated speed)
Voltage variance 0% at ±10% of rated voltage (at rated speed)
Temperature variance 0 to 50ºC ±0.1% max. (at rated speed)
Frequency characteristics 1 kHz
Torque control accuracy (reproducibility) ±3% (at 20% to 100% of rated torque)
Soft start time setting 0 to 10 s (acceleration time and deceleration time can be set)
Command Input
MECHATROLINK
Communication
MECHATROLINK-II commands
(for sequence, motion, data setting/reference, monitor, adjustament and other commands)
I/O signal
Sequence input signal Emergency stop, 3 external latch signals, forward/reverse torque limit, forward/reverse run prohibit, origin prox-
imity, 3 general-purpose inputs
Sequence output signal It is possible to output three types of signals: positioning completed, speed coincidence, rotation speed detection,
servo ready, current limit, speed limit, brake release and warning signal
Integrated functions
Communications
RS-232
communications
Interface Personal computer
Transmission rate From 2400 to 57600 bps
Functions Parameter setting, status display, alarm display (monitor, clear, history), servo drive data tracing function, test
run/autotuning operations, real time trace, absolute encoder setting, default values function
MECHATROLINK
communications
Communications protocol MECHATROLINK-II
Transmission rate 10 Mbps
Data length 32 bytes
Functions Parameter setting, status display, alarm display (monitor, clear, history), default values function
Tuning Horizontal and vertical axis mode. One parameter rigidity setting. Load inertia detection.
Dynamic brake (DB) Operates when main power OFF, servo alarm, overtravel or servo OFF
Regenerative processing Built-in regeneration resistor in models from 750 W to 1.5 kW. External regeneration resistor optionally.
Overtravel (OT) prevention function Dynamic brake, disables torque or emergency stop torque during POT and NOT operation
Emergency stop (STOP) Emergency stop input
Encoder divider function Optional division pulses possible
Electronic gearing 0,01<Numerator/Denominator<100
Internal speed setting function 8 internal speeds
Protective functions Overvoltage, undervoltage, overcurrent, overload, regeneration overload, servo drive overheat
Analog monitor Ouput The actual servomotor speed, command speed, torque and number of accumulated pulses can be measured
using an oscilloscope or other device.
Panel operator Display functions A 2-digit 7-segment LED display shows the servo drive status, alarm codes, parameters, etc.
MECHATROLINK-II communications status LED indicator (COM)
Switches Rotary switch for setting the MECHATROLINK-II node address
Control mode Position, speed and torque control mode
Performance
Speed variance Load variance During 0 to 100% load ±0.01 max. (at rated speed)
Voltage variance 0% at ±10% of rated voltage (at rated speed)
Temperature dependence 0 to 50ºC ±0.1% max. (at rated speed)
Frequency characteristics 1 kHz
Torque control accuracy (reproducibility) ±3% (at 20% to 100% of rated torque)
Soft start time setting 0 to 10 s (acceleration time and deceleration time can be set)
Position control
Input signal
Command pulse Input pulse type Signal + pulse, 90º phase displacement 2-phase pulse (phase A/B) or reverse and forward pulses (CW/CCW)
Input pulse frequency 500 kpps max. line-driver input, 200 kpps max. open-collector input
Electronic gearing 0,01<Numerator/Denominator<100
Speed/torque control
Input signal
Speed control Speed reference voltage 10 VDC at 3000 r/min: set at delivery (the scale 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.
I/O signal
Sequence input signal Forward/reverse run prohibit, deviation counter reset, alarm reset, control mode switch, pulse prohibited, speed
selection, gain switch, zero speed designation, origin proximity
Sequence output signal Brake release, servo ready and alarm output. It is possible also to output two types of configurable signals: cur-
rent limit, rotation speed detection, warning signal, speed coincidence, positioning completed