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Section 3
Receiving and Installation
Receiving & Installation 3-1MN1854
Receiving & Inspection
Baldor Drivers are thoroughly tested at the factory and carefully packaged for
shipment. When you receive your driver, there are several things you should do
immediately.
1. Observe the condition of the shipping container and report any damage
immediately to the commercial carrier that delivered your driver.
2. Remove the driver from the shipping container and remove all packing
materials. The container and packing materials may be retained for
future shipment.
3. Verify that the part number you received is the same as the part number
listed on your purchase order.
4. Inspect for external physical damage that may have been sustained
during shipment and report any damage immediately to the commercial
carrier that delivered your driver.
5. If the driver is to be stored for several weeks before use, be sure that it is
stored in a location that conforms to published storage humidity and
temperature specifications stated in this manual.
Location Considerations The location of the driver is important. Installation should be in an area
that is protected from direct sunlight, corrosives, harmful gases or liquids, dust,
metallic particles, and vibration. Exposure to these can reduce the operating life
and degrade performance of the driver.
Several other factors should be carefully evaluated when selecting a location for
installation:
1. For effective cooling and maintenance, the driver should be mounted on
a smooth, non-flammable vertical surface.
2. At least 3 inches (75mm) top and bottom clearance must be provided for
air flow. Between drivers (each side), allow at least 0.1 inch (2.5mm).
3. Altitude derating. Up to 3300 feet (1000 meters) no derating required.
Derate the continuous and peak output current by 1.1% for each 330
(100) above 3300 feet. Maximum altitude is 8300 (2540m).
4. Temperature derating. From 0°C to 40°C ambient no derating
required. Above 40°C, derate the continuous and peak output current by
2.5% per °C above 40°C. Maximum ambient is 50°C.
Power Dissipation
Cooling requirements can be determined if you know the maximum (or
continuous) current output from the microstepping driver, I
D
. Calculate heat
dissipation, W
Diss
as follows:
W
Diss
= 5 + 3.4I
D
+0.15I
D
2
Mechanical Installation
Mount the driver to the mounting surface. The driver must be securely fastened to
the mounting surface by the driver mounting holes. The location of the mounting
holes is shown in Section 8 of this manual. Use #8 (M4) cap screws.