Siemens SIMOTICS TN N-compact 1LH8 - Cooling System Faults; Table 8-3 Cooling System Faults

8.10.4 Cooling system faults
The following table shows the possible causes of and remedial measures for faults on water-
cooled machines.
Table 8-3 Cooling system faults
↓ Overheating
↓ Water leaking
Possible causes of faults Remedial measures
X Reduced cooling Check the cooling water flow, increase the amount of cooling water if
necessary.
X Cooling water flow rate too low Consult the manufacturer. If the specified cooling water quality is ob‐
served, the cooling system is maintenance-free.
X Inlet temperature too high Set the correct upstream temperature.
X Cooling water supply switched off Switch on the cooling water supply.
X Cooling water contains too many or unsuit‐
able antifreeze and corrosion-protection
agents
Use cooling water of the agreed quality.
X Leaks in the cooling system Consult the manufacturer.
X Defective cooling water connection Find the leak and seal it.
Operation
8.10 faults
SIMOTICS TN Series N-compact 1LH8
90 Operating Instructions 06/2017