Start-up and operation
17
7
Start-up and operation
Observe the safety instructions in chap. Safety, from page 6 on.
Please refer to chap. Technical data, page 9 for permissible operating
conditions.
•
When commissioning the NEG/NEH, the rules and regulations of the
local associations for electrical engineering (e.g. VDE) and the valid
accident prevention regulations must be observed.
•
The NEG/NEH must always be switched on and off at the main switch.
•
When operating the NEG/NEH with a frequency converter, compliance
with the EMC directive must be ensured.
•
If the speed is controlled with a frequency converter, the maximum
centrifugal force (according to the type plate) must not be exceeded.
•
The NEG/NEH must not be operated without the covers for the unbal-
ances. The rotating unbalances cause a risk of injury.
•
On initial start-up, the current consumption must be measured individ-
ually in all three phases and must correspond to the specifications on
the type plate.
•
The terminal box cover must never be opened in the presence of volt-
age.
Carry out the following measures before start-up:
1. Check that the NEG/NEH have been mounted correctly and are in
perfect condition.
2. Check that the NEG/NEH have been properly connected and earthed.
3. Check that the cables are undamaged and laid according to the
known regulations and standards.
4. Check that all permissible operating conditions have been observed.
5. Check that all protective measures on the system have been ob-
served.
6. Eliminate possible errors before start-up.
7. Screw connections must be checked and, if necessary, retightened
after 1 h operating time (after initial start-up) and thereafter regularly
(generally monthly). Observe the recommended values for screw siz-
es and tightening torques, see chap. Technical data, from page 9
Permissible
operating
conditions
Regulations
Measures