9.1.5
General inspection
Check that the installation conditions are observed. We recommend that the following checks
are performed after approx. 16 000 operating hours or at the latest after two years:
Table 9-2
Checks that have to be performed during the general inspection
Checking
When the
motor is
running
At stand‐
still
The electrical parameters are maintained
X
The permissible bearing temperatures are not exceeded (Page 109)
X
The smooth running characteristics and machine running noise have not
deteriorated
X
The motor foundation has no cracks and indentations (*)
X
X
The machine is aligned within the permissible tolerance ranges
X
All the fixing bolts/screws for the mechanical and electrical connections have
been securely tightened
X
All the potential connections, grounding connections and shield supports are
correctly seated and properly bonded
X
The winding insulation resistances are sufficiently high
X
Any bearing insulation is fitted as shown on the plates and labels
X
The CABLES and insulating parts and components are in good condition
and there is no evidence of discoloring
X
(*) You can perform these checks while the motor is at standstill or, if required, while running.
NOTICE
Machine damage
When carrying out the inspection, if you detect any impermissible deviations from the normal
state, you must rectify them immediately. They may otherwise cause damage to the machine.
See also
Set values for monitoring the winding temperature (Page 110)
Checking the cooling system
● With the machine stopped, check the condition of the cooling system:
– The cooling system is in good condition.
– The pressure drop between entry and exit has not increased appreciably.
9.1.6
Servicing and maintaining the anti-condensation heating
The anti-condensation heating is maintenance-free. If it is defective, contact the
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1MH1
Operating Instructions 08/2017
137
Summary of Contents for SIMOTICS FD 1LL1
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