C O NFIG URA TIO N
1 9 9
1 3.1 3.4.1
5 0 % / 1 0 0 % rat
i
ng se
l
ect
The burden res
i
stors A N D a se
l
ect
i
on
j
umper are on the po w er board to the r
i
ght of the 8 w ay term
i
na
l
b
l
ock.
The
l
eft hand pos
i
t
i
on of the
j
umper sets the actua
l
burden res
i
stance to t w
i
ce the standard va
l
ue and hence
reduces the mode
l
rat
i
ng to 5 0 % .
(H
i
gher burden va
l
ues g
i
ve
l
o w er mode
l
rat
i
ngs).
Us
i
ng th
i
s w
i
th DRIV E PERS O N ALIT Y / 6 8 0)Iarm BURDEN O H MS prov
i
des a 6 - 1 ca
li
brat
i
on range.
To measure the actua
l
burden res
i
stance use an ohmmeter across the
p
a
d m
a
r
ke
d
I
and the r
i
ght hand end of
the front res
i
stor (R1 0 3) 0 V . The
p
a
d m
a
r
ke
d
I
i
s a square pad ad
j
acent to term
i
na
l
4 8.
Th
e
j
ump
e
r
h
a
s
a
th
ir
d op
e
r
a
t
i
ng mod
e
.
I
f th
e
j
ump
e
r
i
s p
a
r
ke
d on on
e
p
i
n, th
e
n th
e
ac
tu
a
l
bu
r
d
e
n
r
e
s
i
st
a
n
ce
w
ill
b
e
h
i
gh to
a
ll
ow th
e
us
e
of sm
a
ll
t
e
st moto
r
s.
Mode
l
Left hand
j
umper pos
i
t
i
on
R
i
ght hand
j
umper pos
i
t
i
on
Parked
j
umper pos
i
t
i
on A mps
and A ctua
l
Burden Ohms
PL/X 5 - 5 0
5 0 % of max mode
l
rat
i
ng
1 0 0 % of max mode
l
rat
i
ng
6 A mps max 3 3 0R
PL/X 6 5 - 1 4 5
5 0 % of max mode
l
rat
i
ng
1 0 0 % of max mode
l
rat
i
ng
2 4 A mps max 82R
PL/X 1 8 5 - 2 6 5
5 0 % of max mode
l
rat
i
ng
1 0 0 % of max mode
l
rat
i
ng
2 4 A mps max 1 5 0R
See a
l
so 4.5.4 PA SSIV E M O T OR defau
Th
i
s
i
s used to test sma
ll
motors w
i
thout chang
i
ng the actua
l
burden res
i
stor va
l
ue.
Note. W hen us
i
ng the parked pos
i
t
i
on for sma
ll
test motors, you may choose to set C O N FIGUR A TIO N /
DRIV E PERS O N ALIT Y / 6 8 0)Iarm BURDEN O H MS to the parked va
l
ue, or
l
eave
i
t at the preva
ili
ng mode
l
rat
i
ng. If you set
i
t to the parked va
l
ue
i
n the norma
l
w ay, then the armature current ca
li
brat
i
on range of the
PL/X w
ill
ref
l
ect the parked pos
i
t
i
on for sma
ll
motors. If you
l
eave
i
t set to the preva
ili
ng mode
l
rat
i
ng then
the PL/X parameters w
ill
assume the norma
l
fu
ll
rat
i
ngs desp
i
te the actua
l
current be
i
ng sca
l
ed to the parked
pos
i
t
i
on range for sma
ll
motors. Th
i
s may be usefu
l
i
f the conf
i
gurat
i
on
i
nvo
l
ves armature current re
l
ated
parameters that need test
i
ng at fu
ll
va
l
ue desp
i
te the fact that on
l
y a sma
ll
current
i
s f
l
o w
i
ng.
E.g. A PLX 5 0
i
s ca
li
brated for 1 1 0 A mps.
The
j
umper
i
s parked, and a 6 A mp motor
i
s used to test the un
i
t
w
i
thout a
l
ter
i
ng 6 8 0)Iarm BURDEN O H MS. A t 1 0 0 % current, 6 A mps w
ill
be f
l
o w
i
ng
i
n the armature, but
1 1 0 A mps w
ill
be d
i
sp
l
ayed on 1 3 5)ARM C UR A MPS M O N.
Tab
l
e of burden res
i
stor va
l
ues for mode
l
s w
i
th
j
umper se
l
ect
i
on.
R1 0 4 = 6 A or 2 4 A mp depend
i
ng on mode
l
, R1 0 3 // R1 0 2 // R1 0 4 = 5 0 % , R1 0 1 // R1 0 0 // R1 0 4 = 1 0 0 % .
A mps
Theoret
i
ca
l
Burden (Rt)
A
l
so
680
)
I
a
r
m BU
R
DEN
OHMS
100% o
r
50%
F
i
xed as sho w n
for sma
ll
motors
R
104 ohms
R1 0 3 // R1 0 2 // R1 0 4
5 0 %
1 % 0.6 W
R
103 //
R
102 ohms
R1 0 1 // R1 0 0 // R1 0 4
1 0 0 %
1 % 0.6 W
R
101 //
R
101 ohms
1 2
166.66
3 1 9. 9 5
6 A mps / 3 3 0
1 0,5 0 0 // empty
6 8 0 // 6 8 0
2 4
83.33
1 6 7. 4 6
6 A mps / 3 3 0
6 8 0 // 6 8 0
2 2 0 // 2 2 0
3 6
55.55
1 1 0. 4 4
6 A mps / 3 3 0
3 3 2 // 3 3 2
6 6.5 // empty
5 1
39.21
7 8.2 1
6 A mps / 3 3 0
2 0 5 // 2 0 5
8 8.7 // 8 8.7
7 2
27.77
5 5.3 5
6 A mps / 3 3 0
6 6.5 // empty
6 0.4 // 6 0.4
9 9
20.20
4 0.6 8
6 A mps / 3 3 0
4 6.4 // empty
4 3 // 4 3
1 2 3
16.26
3 2.4 6
6 A mps / 3 3 0
3 6 // empty
3 4 // 3 4
1 5 5
12.90
2 5.6 8
2 4 A mps / 8 2
3 7.4 // empty
3 0.1 // 3 0.1
2 0 5
9.75
1 9.4 8
2 4 A mps / 8 2
5 1.1 // 5 1.1
2 2.1 // 2 2.1
2 7 0
7.41
1 4.7 6
2 4 A mps / 8 2
3 6 // 3 6
1 6.2 // 1 6.2
3 3 0
6.06
1 1.9 6
2 4 A mps / 8 2
2 8 // 2 8
1 3 // 1 3
4 3 0
9.30
1 8.5 0
2 4 A mps / 1 5 0
4 2.2 // 4 2.2
1 9.6 // 1 9.6
5 3 0
7.54
1 4.9 5
2 4 A mps / 1 5 0
3 3.2 // 3 3.2
1 5.8 // 1 5.8
6 3 0
6.35
1 2.5 5
2 4 A mps / 1 5 0
2 7.4 // 2 7.4
1 3.3 // 1 3.3
See 1 3.1 3.4 DRIV E PERS O N ALIT Y / Armature current burden res
stance PIN 6 8 0 for burden formu
l
a.
Summary of Contents for PLX
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