© FRONIUS  2013     41 
 
1.19 Alarm  codes 
The carriage can indicate the occurrence of various events and errors. If an 
alarm occurs, the display will show one of the following codes. 
 
Event code  Description  Additional information 
cLs– 
Carriage negative limit switch active. 
The carriage reached the track limit 
switch. 
Use the travel direction switch (A) 
to release the limit switch. 
cLs+ 
Carriage positive limit switch active. 
The carriage reached the track limit 
switch. 
oLs– 
Oscillation negative limit switch active. 
The oscillator arm reached its end 
position. 
Use the oscillation arm stroke 
knob (D) to release the limit 
switch. 
oLs+ 
Oscillation positive limit switch active. 
The oscillator arm reached its end 
position. 
cm  Metric system active 
See point 22.4 for how to change 
the measurement system. 
inch  Imperial system active 
mem0…9  Save/load a program from memory 
See point 22.1 and 22.2 for 
additional information about 
saving and loading programs. 
 
Error code  Description  Solution 
err1 
CAN communication systems initialization 
error. 
Eliminate short circuit between 
wires or communication ports. 
err2 
Communication error between the remote 
control and carriage. 
Tighten connectors if loose. 
Replace communication wires if 
damaged. 
err3 
Communication error between the remote 
control and oscillation 
err4 
Communication error between the remote 
control and control box. 
err5 
Save/load error. Possible damage of the 
remote control memory. 
Contact your FRONIUS service 
technician. 
err6 
Operating temperature level exceeded. 
Ambient temperature is too high. 
Operate in lower ambient 
temperature. 
err7  Motor controller error. 
Contact your FRONIUS service 
technician. 
err8 Oscillation controller error. 
Contact your FRONIUS service 
technician. 
err9  Control box controller error. 
Contact your FRONIUS service 
technician.