Commissioning; Checking Before The Commissioning; Insulation Resistance - Siemens SIEMOSYN 1FU8 Betriebsanleitung

- connect and arrange the terminal jumpers in accordance with the circuit diagram located in the terminal box.
FS 71 – 132
- observe the tightening torques of the screw connections (fig. 5).
- connect conductor to the clamp "Earthing".
- The motors basically are star connected. Clockwise phase sequence is standard with the following wiring:
U1 = orange (OG)
V1 = black
W1 = red
- with repeated start: overheating of the motor if PTC-resistors are not evaluated
- pay attention to the correct phase sequence --> direction of rotation
- the adequate assembly is the responsibility of the manufacturer of the system.
- observe the rating plate data and circuit diagram.
- when converter fed, high-frequency current and voltage, oscillations in the motor supply lines, electromagnetic
disturbances may occure
6

Commissioning

Thermal hazard from hot surfaces!
The surface temperatures of the motors can reach over 100 °C.
Do not touch hot surfaces!
Protection must be provided against accidental contact if necessary. Temperature sensitive
components (wires, electronic components) must not touch hot surfaces.
6.1 Checks before the commissioning
Ensure before the commissioning that
- all connections are correctly executed and the plug connections are protected against loosening.
- all motor protection devices are active,
- the drive is not blocked,
- the drive is undamaged (no damages due to transport / storage)
- the feather key in the shaft end (if available) are protected from flying out.
Inspection of the insulation resistance:
- before the initial start-up of the motor, after long storage or shutdown times (approx. 6 months), the insulation
resistance of the winding has to be determined.

Insulation resistance:

- the minimum insulation resistance of new, cleaned or repaired windings against mass amounts to 10 MegaOhm.
- the critical insulation resistance R
voltage U (voltage with f
N
200 kOhm
18
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(BK)
(RD)
CAUTION
CAUTION
is first calculated. Calculation takes place by multiplication of the highest rated
krit
), e.g. AC 400V, with the constant factor (o,5 kOhm/V): R
max
FS 160
= 400 V x 0,5 kOhm/V =
krit

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