YASKAWA V1000 Series Installation & Start-Up Manual

5.2 Motor Performance Fine Tuning
190 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
When using OLV Motor Control, leave the torque compensation gain (C4-01) at its
default setting of 1.00. To increase speed precision during regeneration in OLV
Motor Control, enable slip compensation during regeneration (C3-04 = “1”).
• Poor speed response and
stability
Slip
Compensation
Primary Delay
Time Constant
(C3-02)
• If response is slow, gradually decrease the
setting by 0.1.
• If speed is unstable, gradually increase the
setting by 0.1.
200 ms
<1>
100 to 500
ms
• Poor speed precision
Slip
Compensation
Gain (C3-01)
• If speed is too slow, gradually increase the
setting by 0.1 ms.
• If speed is too fast, gradually decrease the
setting by 0.1 ms. Note: Default settings
change when the motor control method is
changed. The default setting shown here is
for Open Loop Vector Control.
1.0
<1>
0.5 to 1.5
• Motor noise
• Control motor hunting and
oscillation occur at speeds
below 10 Hz.
Carrier
Frequency
Selection
(C6-02)
• If there is too much motor noise, the
carrier frequency is too high.
• If motor hunting and oscillation occur at
low speeds, reduce the carrier frequency.
• The default setting for the carrier
frequency depends on the drive capacity
(o2-04) and the Drive Duty Selection (C6-
01).
7
(Swing
PWM
1)
0 to the
default
setting
• Poor motor torque at low
speeds
• Poor speed response
• Motor instability at motor
start.
Mid Output
Vo l t a g e A
(E1-08)
Minimum
Output Voltage
(E1-10)
• If motor torque and speed response are too
slow, increase the setting.
• If the motor exhibits excessive instability
at start-up, reduce the setting. Note: The
default value is for 200 V class units.
Double this value when using a 400 V
class drive.
E1-08:
12.0 V
<1>
E1-10:
2.5 V
<1>
Initial ±2 V
<1> Default settings change when the motor control method is changed. The default setting shown here is for
V/f Control.
Problem Parameter No. Countermeasure
Default
Value
Suggested
Setting

YASKAWA V1000 Series Specifications

General

Model	V1000 Series
Series	V1000
Output Frequency	0.1 to 400 Hz
Overload Capacity	150% for 60 seconds
Type	AC Drive
Control Method	V/f Control
Input Voltage	200-240V, 380-480V
Output Voltage	0 to Input Voltage
Power Range	0.1 to 18.5 kW
Horsepower	0.2 to 25 HP
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit, Ground Fault
Communication Interfaces	Modbus RTU
Enclosure	IP20
Ambient Temperature	-10 to +50°C
Storage Temperature	-20 to +60°C
Humidity	5 to 95% RH (non-condensing)
Cooling Method	Fan Cooled