User manual

3U Servo Amplifier
MOUNTING
The 3U Geo Direct PWM drives are designed to be installed in an enclosure whose ambient temperature
does not exceed 55 °C. It must not be exposed to conductive dust or humidity in excess of 90% non-
condensing. Corrosive gasses, corrosive dust, and other contaminants must be kept out of the drive
enclosure.
FACEPLATE
3 SLOT
230 VAC INPUT - 4A rms CONT/8A rms PEAK
TAU
2-AXIS PWM AMPLIFIER
DELTA
MOTO R
O.T .
PWM
INPUT
2
PWM
INPUT
1
MODEL 3U42
M
U
O
O
V
1
R
T
W
U
R
2
O
V
O
T
M
W
PW R
ENA 2
ENA 1
AMPLIFIER
STATUS
2.39
6.30
5.08
3.94
The drive rack is mounted to a back panel. The back panel should be unpainted and electrically
conductive to allow for reduced electrical noise interference. The back panel is machined to accept the
mounting bolt pattern of the drive. Make sure that all metal chips are cleaned up before the drive is
mounted so there is no risk of getting metal chips inside the drive.
The 3U rack is mounted to the back panel through 4 x 0275”x0.400” obround, user needs to provide
screws and internal-tooth lock washers to attach at the cabinet. It is important that the teeth break through
any anodization on the drive's mounting gears to provide a good electrically conductive path in as many
places as possible. Mount the 3U rack on the back panel so there is airflow (at least three inches) at both
the top and bottom areas of the drive.
If multiple 3U Geo drives are used, they can be mounted side-by-side, leaving at least one-tenth of an
inch clearance between drives in the 3U rack. It is extremely important that the airflow is not obstructed
by the placement of conduit tracks or other devices in the enclosure.
Caution:
Units must be installed in an enclosure that meets the environmental IP rating of
the end product (ventilation or cooling may be necessary to prevent enclosure
ambient from exceeding 113° F [45° C]).
Backplane Board 8