
7 Maintenance
63Contents of this chapter ...........................................................................
63Maintenance intervals .............................................................................
65Maintenance timers and counters ...............................................................
65Internal liquid-cooling system ....................................................................
65Power connections ................................................................................
65Retightening the power connections ........................................................
65Fans ..................................................................................................
65Replacing the fan in the 600 mm wide incoming cubicle .................................
67Replacing the cooling fan of a D8T supply module .......................................
68Fuses ................................................................................................
68Checking and replacing the AC fuses .......................................................
69Checking and replacing the DC fuses .......................................................
70Supply module .....................................................................................
70Replacing the D8T supply module ...........................................................
74Control panel .......................................................................................
74Cleaning the control panel ....................................................................
74Replacing the control panel battery ..........................................................
75Control unit ..........................................................................................
75Replacing the memory unit ...................................................................
75Replacing the BCU control unit battery .....................................................
76LEDs and other status indicators ................................................................
76Control panel and panel platform/holder LEDs ............................................
77Control unit LEDs ...............................................................................
8 Internal cooling circuit
79Contents of this chapter ...........................................................................
79Applicability .........................................................................................
79Internal cooling system ............................................................................
81Connection to a cooling unit ......................................................................
81Connection to an ACS880-1007LC cooling unit ...........................................
81Connection to a custom cooling unit .........................................................
81General requirements ......................................................................
81Coolant temperature control ...............................................................
82Filling up and bleeding the internal cooling circuit ............................................
82Drive line-ups with an ACS880-1007LC cooling unit ......................................
82Drive line-ups with a custom cooling unit ...................................................
84Draining the internal cooling circuit ..............................................................
84Maintenance intervals .............................................................................
84Technical data ......................................................................................
84Coolant specification ...........................................................................
84Coolant type .................................................................................
84Temperature limits ..............................................................................
86Pressure limits ..................................................................................
86Coolant flow rate limits ........................................................................
86Cooling circuit materials .......................................................................
9 Technical data
89Contents of this chapter ...........................................................................
89Ratings ..............................................................................................
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