Yaskawa Sigma II Series Servo System User Manual

Page 369

Sigma II User’s Manual

Chapter 8: Ratings and Characteristics

8 - 39

Servo Amplifier Ratings and Specifications Table 1 (continued)

Servo Amplifier Model

SGDH-

I/O Signals

Position

Form

A-, B-, C-phase line driver

S-phase line driver (only with an absolute encoder)

Frequency Dividing

Ratio

Any

Sequ

enc

Signal allocation can

be modified

Servo ON, P control (or Control Mode switching, forward/reverse motor rotation by internal

speed setting, zero clamping, reference pulse prohibited), forward run prohibited (P-OT),

reverse run prohibited (N-OT), alarm reset, forward current limit, and reverse current limit

(or internal speed selection)

Sequ

enc

Fixed Output

Servo alarm, 3-bit alarm codes

Signal allocation can

be modified

Positioning completed (speed coincidence), during servomotor rotation, servo ready,

during current limiting, during speed limiting, brake released, warning, selecting three of

the NEAR signals.

Internal Functions

Dynamic Brake

Operated at main power OFF, servo alarm, servo OFF, or overtravel.

Regeneration

External regenerative resistor.

Built-in.

Overtravel Stop

Dynamic brake stop at P-OT or N-OT, deceleration to a stop, or free run to a stop.

Electronic Gear

0.01

≤ A/B ≤ 100

Protection

Overcurrent, overvoltage, low voltage, overload, regeneration error, main circuit voltage

error, heat sink overheated, no power supply, overflow, overspeed, encoder error, overrun,

CPU error, parameter error, etc.

LED Display

Charge, Power, five 7-segment LEDs (built-in digital operator functions)

CN5 Analog Monitoring

Analog monitor connector built in for monitoring speed, torque and other reference signals.

Speed: 1V/1000rpm

Torque: 1V/rated torque

Pulses remaining: 0.05V/reference unit or 0.05V/100 reference units

Comm

unic

ati

ons

Connected Devices

Digital operator (hand-held model), RS-422A port such as for a personal computer

(RS-232C ports under certain conditions)

1:N Communications

Up to N = 14 for RS-422A ports

Axis Address Setting

Set with parameters.

Functions

Status display, parameter setting, monitor display, alarm trace-back display, JOG and

auto-tuning operations, speed, torque reference signal, and other drawing functions.

Others

Reverse rotation connection, origin search, automatic servomotor ID, DC reactor

connection terminal for high power supply frequency control*