175
EN
Cause: Overtemperature in the control 
circuit
Remedy: Allow power source to cool down
If the power source is being used with a robot 
interface or a field bus
Cause: Robot not ready
Remedy: Initialise "Robot ready" signal, ini-
tialise "Source error reset" signal 
(N.B. "Source error reset" only 
available in conjunction with ROB 
5000 and field bus coupler for ro-
bot control)
Cause: Cooling unit flow watchdog has 
been triggered
Remedy: Check the cooling unit; if neces-
sary, top up the coolant or bleed 
the system as described in "Put-
ting the cooling unit into service"
Cause: The software activation code is 
incorrect
Remedy: Check the software activation 
code, try again
Cause: Phase failure in power supply
Remedy: Check the mains fuse, the mains 
lead and the mains plug
Cause: Indirect symmetry error
Remedy: Contact After-Sales Service
Cause: Mains undervoltage: The mains 
voltage has dropped below the 
lower limit of the tolerance range 
(see section "Technical data")
Remedy: Check the mains voltage