Heat Sinking; Line Fusing - Advanced Digital SimpleServo SS504 User Manual

Table 1. Line Filter Part Numbers
SimpleServo P/N
SS504/604
SS508
SS608
Line filters should be placed inside the shielded panel. Connect the filter to the incoming power lines
immediately after the safety mains and before any critical control components (Figure 6). Wire the AC
line filter as close as possible to the SimpleServo. If you add separate fuses, add them after the AC
line filter.
m
The ground connection from the filter must be wired to solid earth ground, not machine
ground. This is very important!
If the end-user is using a CE-approved motor, the AC filter combined with the recommended
SimpleServo motor and encoder cables, is all that is necessary to meet the EMC directives listed
herein. The end user must use the comparable filter (see table above), to comply with CE
specifications. The OEM may choose to provide alternative filtering that encompasses the
SimpleServo and other electronics within the same panel. The OEM has this liberty because CE is a
machinery directive.
H
EAT SINKING
SimpleServos contain sufficient heat sinking in their basic configuration. There is no need for
additional heat sinking. However, drives that output more than 8 amps incorporate a heat sink cooling
fan; you must ensure that there is sufficient clearance for the cooling fan to circulate air (Figure 3). As
a minimum, you must allow an air gap of 1 inch above and below the drive.
L
INE FUSING
External line fuses must be installed on all SimpleServos. Connect the external line fuse in series with
the AC line voltage input. Table 3 lists the recommended line fuse sizes. Use fast acting fuses rated
for 250 VAC or higher, and approximately 200% of the maximum phase current.
Table 2. Recommended Line Fuse Sizes.
Model AC Line Fuse Size
Number
SSX04
SSX08
(AC Amps)
15
25
Schaffner AC filter P/N
FN350-8
FN350-12
FN350-12
13