Baldor MN850 User Manual

2-12 Installation

MN850

1.

Remove cover.  (See cover removal described previously in this section.)

2.

Mount the panel or enclosure to the mounting surface.  The panel or enclosure
must be securely fastened to the mounting surface.   Refer to the mounting
dimensions in Section 6 of this manual.

If the control will be subjected to levels of shock greater than 1G or vibration
greater than 0.5G at 10 to 60Hz, the control should be shock mounted.

3.

Ground the panel and control per NEC article 250 as well as state and local
codes.

4.

Use copper wire rated for at least 75

°

C.  Refer to Tables 2-4 and 2-5 for wire

size recommendations.

5.

Connect the incoming AC power wires from the power disconnect and/or
protection devices to L1, L2 and L3 terminals. Tighten each terminal as
specified in Section 2 of this manual.  To protect the control, be sure to add
MOV protection (refer to Appendix D for additional information).

6.

Connect 115VAC to the X1 and X2 terminals.  This 115VAC input must be
fused. Refer to Table 2-3 for ratings.

7.

Be sure to set the 115/230VAC switch (Control Voltage Selector Switch) to the
115VAC position.

8.

* Connect earth ground to the “GND” of the control. Be sure to comply with local
codes.

9.

Connect the motor leads to terminals T1, T2, and T3.

10. * Connect motor ground wire to the “GND” of the control.  Be sure to comply

with all applicable codes.

11. Connect the S0, S1, K1 and K2 control terminals as required for your

installation.

12. Verify the input line voltage is correct.

13. Verify the Control Voltage is correct and that the selector switch is correctly set.

14. Complete any optional wiring connections that may be needed for your

installation.

15. Install cover.

*

Grounding by using conduit or panel connection is not adequate.  A separate
conductor of the proper size must be used as a ground conductor.