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BÜTTNER ELEKTRONIK – Batterie-Control-Booster MT BCB 30/30, MT BCB 40/40, MT BCB 60/40
Power (green):
• illum:
BCB powered on mains or in 12 V booster operation.
• flashing:
1. Safety timer shutdown, I (CC)-phase too long (15 h),
to high consumer loads or battery defect (cell
short-circ.). Restart only by removing of signal on
“D+/Kl.15” (Motor, ignition off) and mains plug.
2. Internal device error (overheating), automatic
restart after cooling down.
• short extinct. „AC Power Limit“ is active, the grid charging power
(every 2 s): is limited, Silent Run (night mode).
• short flash Pulse unit in BCB active, board batterie is being
(every 20 s): trained.
• off:
No mains power and booster not active, stand-by.
4.9.1. Mains operation - LED Power is illuminated:
• Full charging current is not achieved:
1. Board battery is already charged: Load with
heavy consumers.
2. Check wiring – Com, + BORD and fuse I, check
cross-sections and lengths according to Table 1,
check S + and S- sense wiring as well as stripped
cable ends, measure voltages directly at the
terminals/their screws.
3. Check setting of slide switch “A Netz” according
to table 2.
4. Deactivate the “AC Power Limit” function by
pressing the push-button.
• All LEDs are flashing (Current, Batt. I, Battery full, Main Char-
ging, Batt. II and Power) at the same time:
The upper 4 DIP switches for selecting the board
battery type are in an invalid position and the
device has switched off to safety mode. Set the
desired battery type (see 4.1 type, technology)
• In mains operation (without batteries or with a defective fuse)
the active charging outputs provide the required charging vol-
tage, the LEDs “Batt. I”, “Batt. II” and “Battery full” continue to
light up.