Lenze 9200 Series Operating Instructions Manual page 82

2.
The LED displays clearly indicate the momentary operating state of
the controller even from greater distances. The axis modules are
provided with 3 LEDs in the operating terminal, the supply has 2
LEDs at the front side.
2.1.
RDY
The LED is illuminated after the ON-delay has passed and no fault
was detected. RDY is not illuminated if a fault was detected.
BR
on
The LED is illuminated if the DC bus voltage is increased above a
threshold by absorbing regenerated energy and then dissipated
through the brake resistor.
2.2.
RDY
The LED is illuminated if the ON-delay has passed and no fault was
detected. RDY is not illuminated if a fault was detected or homing is
not finished or the DC bus control is active or a following error is
active.
I
max
The LED is illuminated when reaching the maximum controller
current or the set torque limit.
IMP
Pulse inhibit. The LED is illuminated if the inverter is inhibited. The
inverter is inhibited if the terminal 28 is low the STOP key is
pressed, inhibit avtivated by communication or if a fault is detected.
RDY
on
on
on
off
off
off
78
LED displays
LED supply module
Ready to operate
Brake chopper active
LED axis module
Ready to operate
I max IMP
off off Controller is ready to operate, the controller is enabled
off on Controller is ready to operate, however, it is not enabled
on off Speed controller is limited:
the controller supplies the set maximum current
First commissioning:
If the motor speed remains at 50...300 rpm even at high
set value and low load, the motor connection cables U and
V must be exchanged.
off on Controller is not ready to operate. In case of fault, the type
of fault is displayed.
off off Maximum following error, homing not finished, active DC -
bus control (see above)
on off The maximum following error occured at master frequency
coupling and the controller reaches the set current limit.