Baldor 23H Series, Installation & Operating Manual, Page: 12 / 127

Section 2
Installation
This section covers all instructions for proper mounting and wiring of the Baldor Series 23H servo
control. All tools required for normal installation should be available from any electrical service
technician. If problems arise after installation, please refer to Section 4 Diagnostics and
Troubleshooting.
Location and Mounting
Select a mounting surface for the control that will allow the control to be mounted in a vertical
position using the mounting holes provided. The area selected should allow for free air circulating
around the control. Provide for at least two inches of clearance on all sides for maximum cooling
efficiency.
CAUTION: AVOID LOCATING CONTROL IMMEDIATELY ABOVE OR BESIDE HEAT
GENERATING EQUIPMENT, OR DIRECTLY BELOW WATER OR STEAM
PIPES.
The control is designed for panel mounting. Mount in a clean dry enclosure with an ambient
temperature less than +40 deg C. DO NOT mount control above transformer or other sources of
heat. DO provide 2" minimum clear area above and below the control to allow free flow of air over
heatsink on the back of the enclosure.
Provide access to the front of the enclosure to adjust parameters and to observe the keypad. Allow
room to remove the front cover to gain access to the power components. Mounting dimensions are
provided in Section 5.
ALTITUDE DERATING: Control ratings apply to 3300 feet (1000 meters) altitude without
derating required. For installations at higher altitudes derate the
continuous and peak output currents of the control by 2% for
each 1000 feet above 3300 feet.
TEMPERATURE DERATING: Control ratings apply to 40°C ambient. Derate output by 2%/°C
above 40°C, up to a maximum of 60°C.
Main Circuit Wiring
Inter-connection wiring is required between the vector control, AC power source, host controller and
any optional control stations. Use UL Listed closed loop connectors sized for the wire gage involved.
Connectors are to be installed using the crimp tool specified by the connector manufacturer.
CAUTION: SERIES 23H CONTROLS FEATURE UL APPROVED ADJUSTABLE MOTOR
OVERLOAD PROTECTION SUITABLE FOR MOTORS NO LESS THAN 50%
OF THE OUTPUT RATING OF THE CONTROL. OTHER GOVERNING ENCIES
SUCH AS NEC MAY REQUIRE SEPARATE OVER-CURRENT PROTECTION.
THE INSTALLER OF THIS EQUIPMENT IS RESPONSIBLE FOR COMPLYING
WITH THE NATIONAL ELECTRIC CODE AND ANY APPLICABLE LOCAL
2-1 INSTALLATION
MN723H-10/95 11/28/95 1:07 AM Page 13 (Black plate)