Delta bb fault code meaning

Delta / bb

Series: C2000 Plus

External interruption

AC motor drive

Meaning: When the contact status of the MI function terminal assigned to function bb is ON, the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P421

Series: C2000-R, CT2000, MS300-HS, VFD-E, VFD-FE, VFD-VE

External interruption

AC motor drive

Meaning:

Possible causes

Source: C2000-R User Manual P218; CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P248; MS300 (High-speed Models) (DELTA_IA-MDS_VFD MS300_high_UM_TC_20170306) P141; Delta VFD-E Manual P88; Delta VFD-FE Manual P41; Delta VFD-VE Manual P66

Series: CFP2000

External interruption

AC motor drive

Meaning: When the contact status of the MI function terminal assigned to function bb is ON, the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P284

Series: CH2000, CP2000, DPD-K

External interruption

AC motor drive

Meaning: When the contact status of the MI function terminal assigned to function bb is ON, the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P382; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P392; DPD-K Series User Manual (DPD-K user manual_20211224) P317

Series: ME300, MP300

External interruption

AC motor drive

Meaning: When the contact status of the function terminal with MI = bb is (ON), the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P180; MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P145

Series: MH300

External interruption

AC motor drive

Meaning: When the contact state of the function terminal configured as MI = bb is ON, the AC motor drive output stops immediately, the motor coasts, and the bb signal is displayed on the digital operator.

Possible causes

Source: MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P293

Series: MH300-HS

External interruption

AC motor drive

Meaning: When the contact status of the terminal assigned to function MI = bb is ON, the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: MH300 Series (High-Speed Models) User Manual (DELTA_IA-MDS_MH300-HS_UM_SC_20241213_v3) P252

Series: MS300

External interruption

AC motor drive

Meaning: When the contact status of the MI function terminal assigned to the bb function is ON, the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P246

Series: MX300

External interruption

AC motor drive

Meaning: When the contact status of the function terminal with MI = bb is (ON), the AC motor drive output stops immediately, the motor coasts, and the digital operator displays the bb signal.

Possible causes

Source: MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P138

Series: VP3000-E, VP3000

bb external interruption

AC motor drive

Meaning:

Possible causes

Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P1058; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P1115