NANOTEC BC72-50, Operating Instructions Manual

Page: 13 / 15

3 Technical details and pin assignment
L1L2 L3
LED behavior Status
L1 off Power U
p
not applied
L1 steady green
L2 and L3 off
Voltage under the set switching threshold
of the brake chopper, normal operation
L2 lights/blinks yellow Voltage over the set switching threshold of
the brake chopper, brake-chopper active
L3 blinks red error occurred
If an error has occurred, the red LED signals an error number by blinking n times. The blinking is repeated
after a pause of one second. The following table shows the meaning of the error numbers.
Blink rate Error
1 U
p
exceeds the set switching threshold at power on.
2 The
switching threshold
is out of the permitted range or was changed during
operation.
3 Over-temperature on the internal braking resistor
4 Braking resistor not connected or defective
5 to 10, 12 Internal error
11 Internal braking resistor overload
13 Overcurrent
NOTICE
When the internal temperature sensor detects an overtemperature condition, the brake chopper is
turned off for three seconds.
Version: 1.2.0 13