Yaskawa F7 to A1000 - Manual (Page 19)

8 Details on New A1000 Features and Functions
YASKAWA PL.A1000.02 F7 to A1000 - Product Transition Guide 19
‹ New “Heavy Duty” and “Normal Duty” Ratings for the A1000
The drive’s capacity is rated for two types of load characteristics, Heavy Duty (HD) and Normal Duty (ND). The table below explains
the drive characteristics for HD and ND ratings. Parameter C6-01 affects the drives carrier frequency setting, and in certain models,
the value of 100 % output current rating is also affected.
Table 7 Drive Selections
Table 8 C6-01 Heavy/Normal Duty Setting
C6-01 Setting Carrier Frequency Output Current Ratings Overload Capacity Maximum Output Frequency
0: Heavy Duty
2 kHz (default)
Can be increased w/o derate
(Refer to Appendix 1)
HD nameplate rating 150 % 400 Hz
1: Normal Duty
(A1000 default)
2 kHz (default)
Can be increased with derate
(Refer to Appendix 1)
ND nameplate rating
ND rating > HD rating
(On certain models, see ratings table)
120 % 400 Hz
Product C6-01 Heavy/Normal Duty Setting
New A1000
C6-01 Drive Duty Selection Setting
0: Heavy Duty
• Rated output current is the HD (Heavy Duty) rating on drive nameplate.
• Overload capacity is 150 % for 1 minute.
• Carrier frequency is defaulted to 2 kHz but can be increased to 8 kHz or 5 kHz w/o derating on certain models (Refer to Appendix 1)
• Carrier frequency is automatically reduced when:
• output frequency is < 6.0 Hz and current is >100 %
• output frequency is > 6.0 Hz and current is > 112 %
• Maximum output frequency is 400 Hz (except on larger models)
• L8-15: OL2 Characteristic selection@low speed (=1 Enabled) expedites OL2 at low output frequencies below 6 Hz.
1: Normal Duty (default)
• Output current is ND (Normal Duty) rating on drive nameplate.
• Overload capacity is 120 % for 1 minute
• Carrier frequency is defaulted to Swing PWM (2kHz) but can be increased with derating on most models (Refer to Appendix 1)
• Carrier is automatically reduced when:
• output frequency is < 6.0 Hz and current is >100 %
• output frequency is > 6.0 Hz and current is > 112 %
• Maximum output frequency is 400 Hz (except on certain larger models)
• L8-15: OL2 Characteristic selection@low speed (=1 Enabled) expedites OL2 at low output frequencies below 6 Hz.
F7
0: Heavy Duty (default)
• Rated output current is HD (Heavy Duty) rating on drive nameplate.
• Overload Capacity is 150 % for 1 min.
• Carrier frequency is fixed at 2 kHz
• Maximum output frequency is 300 Hz.
• L8-15: OL2 Characteristic selection@low speed (=1 Enabled) expedites OL2 at low output frequencies below 6 Hz.
2: Normal Duty 2
• Output current is ND (Normal Duty) rating on drive nameplate.
• Overload capacity varies by model. (See Appendix 1)
• Setting C6-02 Carrier Frequency greater than default is prohibited. (Default is highest possible setting)
• Maximum output frequency is 400 Hz.
• Fixed low speed protection method: Carrier is automatically lowered when output frequency is < 6.0 Hz and current is >100 %.
• L8-15: OL2 Characteristic selection@low speed (=1 Enabled) expedites OL2 at low output frequencies below 6 Hz.