JLG 1500SJ Operator Manual - Manual (Page 138)

SECTION 5 - LCD DISPLAY PANEL - GENERATION 1 & 2
5-42 – JLG Lift – 3121261
BCS Lamp On
When the control system senses forward or backward envelope
violation or moment violation conditions, the BCS Lamp will be
ON. When the BCS Lamp is ON, the display shows a red octagon
image in the machine status tray indicating a potentially hazard-
ous situation.
• The DTCs that triggered this BCS Lamp will be scrolled in
the DTC tray.
NOTE: The available controls will be different among the different DTCs.
The image below is ONLY for envelope violation.