Siemens MICROMASTER Vector Operating Instructions Manual page 21

2. INSTALLATION – MICROMASTER Vector
The terminal arrangement for frame size C is similar to frame size A.
Refer to Figures 2.2.1 and 2.2.3 and proceed as follows:
1. While supporting the fan housing with one hand, insert the blade of a screwdriver into slot A on the underside of the inverter and
press upwards to release the securing tab. Lower the fan housing, allowing it to swing out to the right on its side-mounted hinges.
2. Applying pressure to the gland plate release clips B and C in the direction of the arrows. Swing the plate out to the left on its side-
mounted hinges.
3. Ensure that the power source supplies the correct voltage and is designed for the necessary current (see section 8). Ensure that
the appropriate circuit-breakers with the specified current rating are connected between the power supply and inverter (see section
8).
4. For the power input, use a 3-core cable for single phase units or a 4-core cable for three phase units. For the cross-section of each
core see section 8.
5. Use a 4-core screened cable to connect the motor.
6. Carefully measure and cut the cable leads for power connections, motor connections and braking resistor connections (if required)
before feeding the screened cables through the glands in the metal gland plate and securing the glands.
7. Carefully measure and cut the cable leads for the control connections (if required). Feed the control cable through the correct
gland and secure the gland to the metal gland-plate.
8. Connect the power input leads to the power terminals L/L1 - N/L2 (1 phase) or L/L1, N/L2, L3 (3 phase), and earth (PE) (shown in
Figure 2.2.1) and torque down the screws.
9. Connect the motor leads to the motor terminals U, V, W and the earth (PE) (shown in Figure 2.2.1) and torque down the screws.
Note: For operation with cables longer than 25m see section 1.3.4
10.If required, secure Faston connectors to the braking resistor leads and fit the connectors to the B+/DC+ and B- terminals under the
inverter.
11.Connect the control leads as shown in Figures 2.2.4 and 2.2.6
© Siemens plc 1999
21
English
G85139-H1751-U529-D1
4/8/99