Omron Q2A Series Technical Manual

Startup Procedure and Test Run
4
4.8 Fine Tuning during Test Runs (Adjust the Control Function)
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 157
◆ Closed Loop Vector Control Method
Table 4.19 Parameters for Fine Tuning the Drive (Closed Loop Vector Control Method)
Issue Parameter
Number
Solution Default
Setting
Recommended Setting
• Torque or speed response are slow.
• Hunting or oscillation
• High speed
C5-01 [ASR
PGain 1]
• Low speed
C5-03 [ASR
PGain 2]
*1
• If torque or speed response are slow, increase the setting
value in increments of 5.00.
• If hunting or oscillation occur, decrease the setting
value.
20.00 10.00 - 50.00
• High speed
C5-02 [ASR
ITime 1]
• Low speed
C5-04 [ASR
ITime 2]
*1
• If torque or speed response are slow, decrease the
setting value.
• If hunting or oscillation occur, increase the setting
value.
0.500 s 0.300 to 1.000 s
The drive cannot find ASR proportional
gain or integral time for low speed or
high speed.
C5-07 [ASR Gain
Switch Frequency]
*1
Change the ASR proportional gain and ASR integral time
to conform to the output frequency.
0.0 Hz
0.0 Hz to maximum output
frequency
Hunting or oscillation
C5-06 [ASR Delay
Time]
*1
• If torque or speed response are slow, decrease the
setting value in increments of 10 ms.
• If the rigidity of the machine is unsatisfactory and
vibration is possible, increase the setting value.
4 ms 4 to 20 ms
• The volume of the motor excitation
sound is too high.
• Hunting or oscillation at low speeds
(3 Hz or lower)
C6-02 [Carrier
Frequency Selection]
• If the volume of the motor excitation sound is too high,
increase the carrier frequency.
• If hunting or oscillation occur at low speeds, decrease
the carrier frequency.
1 (2.0 kHz)
*2
2.0 kHz to upper limit value
*1 Refer to the section on C5: ASR - SPEED REGULATION parameters for more information about speed control (ASR).
*2 Default value changes when o2-04 [Drive KVA Selection] and C6-01 [ND/HD Duty Selection] values change.
◆ Advanced Open Loop Vector Control Method
Table 4.20 Parameters for Fine Tuning the Drive (Advanced Open Loop Vector Control Method)
Issue Parameter Number Solution Default
Setting
Recommended Setting
• oS [Overspeed] occurs.
• Hunting or oscillation.
T1-01 [Auto-tuning Mode
Selection]
• Make sure that the output of the drive and the motor
are connected correctly.
• Decouple the motor and machine and do Rotational
Auto-Tuning.
- 0
The volume of the motor excitation
sound is too high.
C6-02 [Carrier Frequency
Selection]
If the volume of the motor excitation sound is too high,
increase the carrier frequency.
1 (2 kHz)
*1
1 to upper limit value
Speed precision is unsatisfactory E2-02 [Mot Rated Slip]
• Decouple the motor and machine and do Rotational
Auto-Tuning.
• If the motor speed is slow, increase the value of E2-
02 in small increments (approximately 0.1% of the
default setting value).
• If the motor speed is fast, decrease the value of E2-
02 in small increments (approximately 0.1% of the
default setting value).
*2
Set to a value that is ±5% of
the current value.
• Torque or speed response are
slow.
• Hunting or oscillation
• High speed
C5-01 [ASR PGain 1]
• Low speed
C5-03 [ASR PGain 2]
*3
• If torque or speed response are slow, increase the
setting value in increments of 5.00.
• If hunting or oscillation occur, decrease the setting
value.
20.00 10.00 - 50.00
• High speed
C5-02 [ASR ITime 1]
• Low speed
C5-04 [ASR ITime 2]
*3
• If torque or speed response are slow, decrease the
setting value.
• If hunting or oscillation occur, increase the setting
value.
0.500 s 0.300 to 1.000 s
The drive cannot find speed response
for low speed or high speed.
• C5-07 [ASR Gain Switch
Frequency]
*4
• High speed
C5-01 [ASR PGain 1]
C5-02 [ASR ITime 1]
• Low speed
C5-03 [ASR PGain 2]
*3
C5-04 [ASR ITime 2]
Change the ASR proportional gain and ASR integral
time to conform to the output frequency.
0.0 Hz
0.0 to maximum output
frequency
Hunting or oscillation C5-06 [ASR Delay Time]
*4
• If torque or speed response are slow, decrease the
setting value in increments of 10 ms.
• If the rigidity of the machine is unsatisfactory and
vibration is possible, increase the setting value.
4 ms 4 to 20 ms
*1 Default value changes when o2-04 [Drive KVA Selection] and C6-01 [ND/HD Duty Selection] values change.
*2 Default value changes when o2-04 [Drive KVA Selection] value changes.
*3 Refer to the section on C5: ASR - SPEED REGULATION parameters for more information about speed control (ASR).
*4 The best values for a no-load operation are different than the best values for actual loading operation.

Omron Q2A Series Specifications

General

Brand	Omron
Model	Q2A Series
Category	Controller
Language	English