Siemens MICROMASTER Operating Instructions Manual page 11

2. INSTALLATION
2.3.3 Power and Motor Connections - Frame Size C
The terminal arrangement for frame size C is identical to frame size A (see Figure 3) . However, before the
wires can be connected to the terminal blocks, you must lower the fan housing and secure the cables to the
gland plate.
Refer to Figure 5 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. Secure each cable to the correct hole in the gland plate, ensuring that the exposed wires are long enough
to reach the terminal blocks.
4. Connect the wires to the terminal blocks as shown in Figure 3. (See section 2.3.4 for information about
connecting the control wires.) IT IS MOST IMPORTANT THAT THE MOTOR AND CONTROL WIRES
ARE KEPT APART.
5. Swing the gland plate back into the base of the inverter. Ensure that the release clips snap into position.
6. Swing the fan housing back into the base of the inverter.
A: Fan housing release tab
B & C: Gland plate release tabs
D: Control cable input (16.2 mm diameter; accepts cables up to 10 mm diameter)
E: Mains cable input (22.8 mm diameter; accepts cables up to 14.5 mm diameter)
F: Motor cable input (22.8 mm diameter; accepts cables up to 14.5 mm diameter)
Figure 5: Power Connections Access Diagram - Frame Size C
© Siemens plc 1997
D
E
F
C
B
A
11
English
G85139-H1750-U049-B
26/09/97