Yaskawa V74X Drives - Manual (Page 7)

7
Drive
Specifications Section 1
See notes at end of table
(table continued on next page)
SECTION B. All Drives
Control method Sine wave PWM (V/f Control or Open Loop Vector)
Frequency control range 0.1 to 400 Hz
Frequency accuracy Digital command: ±0.01% (14 to 122°F, -10 to +50°C)
(temperature change) Analog command: ±0.5% (77°F ± 18°F, 25°C ± 10°C)
Open Loop Vector: ±0.2%
Speed Regulation
V/Hz Mode: ±0.5% – 1% with Slip Compensation
Digital Operator reference: 0.01 Hz (< 100Hz)
Frequency setting resolution 0.1 Hz (100Hz or more)
Analog
0.01 Hz
reference: 0.06Hz/60Hz (1/1000)
Output frequency resolution
Overload capacity 150% of rated output current for 1 minute
0 to 10VDC (20k Ω), 4 to 20mA (250Ω), 0 to 20mA (250Ω) pulse train input,
Frequency Reference Signal
Digital Operator Pot
0.01 to 6000 sec.
Accel/Decel Time
(accel/decel time are independently programmed)
Short-term average deceleration torque (2)
0.2kW: 150%
0.75kW: 100%
Braking Torque
1.5kW: 50%
2.2kW or more: 20%
Continuous regenerative torque: Approx. 20% (150% with
optional braking resistor, braking transistor built-in)
V/f characteristics Custom V/f pattern
Control Characteristics
IG.V7.01_new format.qxd:IG.V7.01_new format.qxd 8/21/07 2:24 PM Page 7