Yaskawa VCD 723 - Manual (Page 14)

1 Introduction
8 Ratings and Specifications
9/15/93
SECTION C. ALL GPD 503 s (CONTINUED)
Control Method Digital flux vector, Sine-coded PWM
Speed Control
Range 1:1000 operation possible even at stall
Precision Digital ref.: ± 0.01% (–10 to +40°C, +14 to +140°F)
Analog ref.: ± 0.1% (25 ± 10°C, 77 ± 50°F)
Control Speed Reference Digital Operator reference: 0.01 Hz (12 bits)
Characteristics Setting Resolution Analog reference: 0.06 Hz/60Hz (10 bits)
Auto Speed Reference Signal 0 to +10 VDC (20k
Ω
), or 4 to 20 mA (250
Ω
)
Accel / Decel Time 0 to 3000 sec (resolution: 0.1 sec.)
(Accel / Decel times set independently)
Torque Limit Setting range: 0 to 300%. Forward/Reverse set independently
Selectable Functions Multi-step speed operation (9 steps max.), S-curve accel/decel,
zero speed control, servo lock, arbitrary torque detection, etc.
Inverter Overcurrent, overvoltage, cooling fin overheat, undervoltage,
cooling fan failure, grounding, etc.
Protective Motor Overload, overheat, overspeed
Functions
System Excessive speed deviation, open-phase detection, continuous
operation during momentary power loss (immediate stop at end
of programmed ride-thru time, 2 sec. max.)
(See Note 3)
Environmental
Ambient Temperature –10 to +45°C (+14 to +113°F)
Conditions Storage Temperature (See Note 4) –20 to +60°C (–4 to +140°F)
Humidity 90% RH (no condensation)
Vibration 1 G at less than 20 Hz, up to 0.2 G at 20 to 50 Hz.
SECTION D
Rated speed 1750 rpm (4 poles)
Pulse Generator 1024 ppr (standard) Higher rates are available.
Thermistor Standard
Load Connection Direct coupling or belt drive
Insulation Type Class F
Ambient Temperature –20 to +40°C (–4 to +104°F)
Location Indoor
NOTES:
(1) Low noise operation can be selected by setting of Sn-09 : 0XXX = General Use (low carrier frequency – 2.08 kHz);
1XXX = Low Noise Operation (high carrier frequency - 12.5 kHz). Rated current is 80% of General Use rated current.
(2) 100% reference current is Continuous Rated Current for Low Noise Operation or General Use.
(3) For a drive rated 230V 5HP or less, or 460V 3HP or less, standard max. ride-thru time is 1 sec (1000 msec). The
max. ride-thru time can be extended to 2 sec (2000 msec) by adding an optional external mounting capacitor unit.
(4) Temperature during shipping. Storing in this temperature for a long period may deteriorate main circuit capacitor.
SECTION D. All VCM’s
SECTION C. All VCD 723’s
Table 1. Motor Control Specifications - Continued