Baldor MN850 Manuale Utente
1-2 General Information
MN850
Safety Notice
This equipment contains voltages that may be as high as 600 volts! Electrical shock can
cause serious or fatal injury. Only qualified personnel should attempt the start-up
procedure or troubleshoot this equipment.
cause serious or fatal injury. Only qualified personnel should attempt the start-up
procedure or troubleshoot this equipment.
This equipment may be connected to other machines that have rotating parts or parts
that are driven by this equipment. Improper use can cause serious or fatal injury. Only
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
that are driven by this equipment. Improper use can cause serious or fatal injury. Only
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
PRECAUTIONS
WARNING: Do not touch any circuit board, power device or electrical connection before you
first ensure that power has been disconnected and there is no high voltage present
from this equipment or other equipment to which it is connected.
Electrical shock can cause serious or fatal injury.
from this equipment or other equipment to which it is connected.
Electrical shock can cause serious or fatal injury.
WARNING: Be sure that you are completely familiar with the safe operation of this equipment.
This equipment may be connected to other machines that have rotating parts or
parts that are controlled by this equipment. Improper use can cause serious or
fatal injury. Only qualified personnel should attempt the start-up procedure or
troubleshoot this equipment.
parts that are controlled by this equipment. Improper use can cause serious or
fatal injury. Only qualified personnel should attempt the start-up procedure or
troubleshoot this equipment.
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC
power before you ensure that all grounding instructions have been followed.
Electrical shock can cause serious or fatal injury.
Electrical shock can cause serious or fatal injury.
Caution:
Install MOV protection for the control. See Appendix D for information.
Caution:
Do not remove keypad cable with power applied to unit. Disconnecting the keypad
cable with power applied will damage the control.
cable with power applied will damage the control.
Caution:
Shearpin trip feature is not equivalent to short circuit overcurrent protection
required by NEC. Instantaneous overcurrent protection must be provided by
circuit interrupting device (fuse or breaker).
required by NEC. Instantaneous overcurrent protection must be provided by
circuit interrupting device (fuse or breaker).
Caution:
Suitable for use on a circuit capable of delivering not more than the RMS
symmetrical short circuit amperes listed here at rated voltage (with fuses specified
in Section 2).
Rated Amperes
symmetrical short circuit amperes listed here at rated voltage (with fuses specified
in Section 2).
Rated Amperes
RMS Symmetrical Amperes
9–59
5,000
72–242
10,000
300–500
18,000
600–750
30,000
900–1200
42,000
Caution:
Do not “Megger” test the motor while it is connected to the soft–start control.
Failure to disconnect motor will result in extensive damage to the control. The
control is tested at the factory for high voltage / leakage resistance as part of
Underwriter Laboratory requirements. Do not megger any part of the control.
Failure to disconnect motor will result in extensive damage to the control. The
control is tested at the factory for high voltage / leakage resistance as part of
Underwriter Laboratory requirements. Do not megger any part of the control.
Caution:
Do not connect power factor correction capacitors to motor terminals. If power
factor correction capacitors are necessary, contact Baldor.
factor correction capacitors are necessary, contact Baldor.
Caution:
If a brake motor is used, the initial starting voltage may not be sufficient to release
the brake. It may be necessary to provide separate power for the brake release
coil.
the brake. It may be necessary to provide separate power for the brake release
coil.
Caution:
Do not connect AC incoming line power to the Motor terminals T1, T2 and T3.
Connecting AC power to these terminals may result in damage to the control.
Connecting AC power to these terminals may result in damage to the control.