DS4 C
HAPTER
2 - I
NSTALLATION
2-5
PSR4/5, and other equipment is accomplished by
connectors supplied with the BDS4 and PSR4/5 units.
The input/output connections are grouped by
connector or terminal block. They are input/output,
motor, resolver, AC main power and control voltages,
main DC bus, and unregulated DC voltages.
To connect the power bus of the PSR4/5 to the BDS4
amplifiers the following is suggested:
•
For PSR4/5-X12 modules, use 600 VAC
insulated 14 AWG or larger wire.
•
For PSR4/5-X20 modules, use 600 VAC
insulated 10 AWG wire.
•
For PSR4/5-50 and PSR4/5-75 modules, use
600 VAC insulated 8 AWG or larger wire.
Captive screws are used in the power terminals of the
PSR4/5-X12 module, PSR4/5-X20 module, and the 3
amp thru the 20 amp BDS4 amplifiers. Do not
attempt to remove these screws to use ring terminals.
Use locking spring terminals similar to Hollingsworth
#XSS20945S or #SS20947SF for 16 and 14 AWG
wire and #XSS20836 or #SS20832F for 12 and 10
AWG wire.
2.7.1 Recommended Torque for
Electrical Connections
Table 2.1 displays the recommended torque values
for terminal block and grounding connecting points.
All torques are measured with the wire or terminal lug
underneath the screw head.
2.7.2 Grounding Scheme
To prevent shock hazard to personnel and to ensure
proper operation of the servo system, the BDS4,
PSR4/5, and the servo motor must be grounded
according to NEC specifications. Each BDS4 and
PSR4/5 have at least two grounding screws on the
front of the chassis.
NOTE
Provisions of the National
Electrical Code with respect
to grounding should be
followed. These precautions
generally deal with the
ground loop currents arising
from multiple ground paths.
Only one ground path should
be used.
One of the screws on the chassis of the PSR4/5
should go to earth or machine ground. The other
should be connected to the adjacent BDS4 ground
screw along with the ground wire from the motor.
The free ground screw on the BDS4 chassis should
then be connected to the next BDS4, etc.
For grounding to machine or earth ground, a screw
lug should be attached to the ground screw or stud on
the PSR4/5 or BDS4. A torque of 12 in.lb. for
ground screws and 20 in.lb. for ground studs is
recommended. Also refer to the National Electrical
Code (NEC) or UL standard 486B for recommended
torque's.
Table 2.1. Torque Values
CONNECTING
POINTS
BDS4-3-20
AMP UNITS
BDS4-30-55
AMP UNITS
PSR4/5-12-20
AMP UNITS
PSR4/5-50-75
AMP UNITS
AC Input Screws 12 in. lb. 20 in. lb. 12 in. lb. 20 in. lb.
DC Bus Screws 12 in. lb. 20 in. lb. 12 in. lb. 20 in. lb.
Motor Connecting
Screws
12 in. lb. 20 in. lb.
External Regen
Screws
12 in. lb. 20 in. lb.
Ground Screws 12 in. lb. 20 in. lb. 12 in. lb. 20 in. lb.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
