How to open the upper panel

1

Turn OFF the MC9 series controller.

Set the power switch to OFF position (press the lower side). Check if the POWER LED is off.

2

Remove the AC power cable.

1. Turn the coupling nut anti-clockwise.
2. Pull out the connector of the AC power cable.

3

Remove the upper panel fixing screws.

4

1. Pull the upper panel toward you until the AC power connector comes out of the opening on the side of the upper panel.
2. Slowly move the upper panel to the upper side and take the panel out.

This completes the operation.