YASKAWA SGMAH, User Manual

Page: 368 / 488

Sigma II User’s Manual Chapter 8: Ratings and Characteristics
8 - 42
Servo Amplifier Ratings and Specifications Table 2 (continued)
*1
The DC reactor connection terminals for power supplies designed to minimize the effects of
harmonics are not included in servo amplifiers with capacitites of 6kW or more.
Servo Amplifier Model
SGDH-
50 60 75 1A 1E
I/O Sig
nals
Po
si
tio
n
Output
Form
A-, B-, C-phase line driver
S-phase line driver (only with an absolute encoder)
Frequency Dividing Ratio
Any
Sequence Input
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)
Se
quenc
Output
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.
Inte
rnal
Func
tion
s
Dynamic Brake
Operated at main power OFF, servo alarm, servo OFF, or overtravel.
Regeneration
Built-in
External regenerative resistor.
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 volt-
age 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
Communications
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
*1