User's Manual

52
211 338 44.indd / 081019
Before taking any fault elimination measures on the radio control system, first
check that the crane installation is supplied with power and is ready for operation
and has not been switched off by any safety devices (mains connection switch,
crane isolating switch, emergency-stop switch, travel and lifting path limitation
devices, overload protection device, motor circuit-breakers, etc.).
10 Fault elimination
No. Problem Screens Possible causes Information, document section
01
DRC-MJ hand-held
transmitter cannot be
switched on with the
STOP button
Power supply of the DRC-MJ
hand-held transmitter has failed
Check batteries, se
e 6.3.
Polarity of batteries? Replace
completely discharged batteries.
02
DRC-MJ hand-held
transmitter cannot be
switched on with the
STOP button
DRC-MJ hand-held transmitter
has failed
Replace DRC-MJ hand-held
transmitter
03
DRC-MJ hand-held
transmitter cannot be
switched on with the
STOP button
Standby mode
Switch on with electronic key, se
e
8.4
04
DRC-MJ hand-held
transmitter does not
respond when button is
pressed
Battery is being charged
Stop charging proces
s, 6.3.2.
Switch on with electronic key, 8.4
05
Crane does not respond
to button command
Assignment of crane ID is missing
Horn is working; assig
n crane ID,
7.6.3
06
Crane does not respond
to button command
Assigned radio receiver has no
power supply
Switch crane on; check radio
receiver acc. to user manual/
assembly instructions
07
Warning during start of
crane operation
Re-establishing radio connection
after:
- Malfunction in DRC-MP receiver
- Timeout of hand-held transmitter
- Range limits exceeded or Auto-
power-off
- Power down: temporary under-
voltage or voltage failure on the
receiver side.
- After log-on of a new transmitter
Press button to acknowledge
warning.
1) Additional symbols may also be shown in the display fi eld
K564
???
K123
???
NOID
K123
???
K123
09999
???
LED off
LED off
LED off
LED flashing
LED green, flashing
LED green, flashing
LED green, flashing
1)
1)
1)
1)
1)