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• When
the
motor
remains
at
standstill
between
• When
the
motor
accelerates,
runs
at
constant
cycles
of acceleration
and
deceleration
without
speed,
and
decelerates
in a
continuing
cycle
continuous
rated
speed
running,
without
being
at standstill.
The
timing
chart
of
the
motor
armature
current
The
timing
chart
of
the
motor
armature
current
and
speed
is as
shown
in Fig.
i. 9.
The
allowable
and
speed
is as
shown
in Fig.
i. ii.
The
allow-
frequency
of operation
"n"
can
be
calculated
as
able
frequency
of operation
"n"
can
be
calculated
follows
:
as
follows.
Kt
"IR
Kt
• IR
n
=
286.5
X
NR
(JM
+ JL)
X
n
=
286.5
X
Nn
(JM
+ JL)
X
(i/___fl_/_3)
(times/min)
(i/_--fl
2 /_)
(times/min)
Fig.
1.10(a)
and
(b)
indicate
allowable
frequency
Fig.
1.12(a)
and
(b)
indicate
allowable
frequency
of
operation
of
Minertia
Motor
type'UGMMEN-06AAI
of
operation
of
Minertia
Motor
type
UGMMEN-06AAI
and
Hi-Cup
Motor
type
UGHMED-12AA,
respectively,
and
Hi-Cup
Motor
type
UGHMED-12AA,
respectively.
The
values
in
Fig.
i.i0
are
measured
when
The
values
in
Fig.
1.12
are
measured
when
operating
motor
at
no
load.
When
JL
is
equal
to
operating
motor
at
no
load.
When
JL is
equal
to
JM , the
frequency
is
half
of
the
value
in
the
figure.
JM , the
frequency
is
half
of
the
value
in
the
figure.
When
JL is
twice
of
JM , the
frequency
is
one-third
When
JL is
twice
of
JM , the
frequency
is
one-third
of the
value
in
the
figure,
of the
value
in
the
figure.
MOTOR
--7
_
ARMATURE
!
I
j
t : f
-
T,ME
MOTOR
CURRENT
Ii
ARMATURE
f
TIME
I
I'_i
I_
l
CURRENT
Ill
'
'
i
I
I
l
I
I
l
,
MOTOR
I
/
_f
k
I
/
k
I __
MOTOR
T,ME
SPEED /"
"I V
X,;4 . T,ME
SPEED
Fig.
1.9
Timing
Chart
of
Fig.
1.11
Timing
Chart
of
Motor
Armature
Current
and
Speed
Motor
Armature
Current
and
Speed
1000 _
_
i _
_._1
1000%
p=100%
800 -
Ip= 150%
\
,.-,,:1
800
Ip: 100%
,,,ow,
FREQUENCY
600
/p=_
FREQUENCY
600_
OFOPERATION
OFOPERATION
(TIMES/MIN)
(TIMES/MIN)
400
Ip= 300% _._
400
200
200
0
I
I
I
I
I
0
0.2
0.4
0.6
0.S
1.0
0.2
0.4
0.6
0.8
1.0
LOAD CURRENT COEFFICIENT fl
LOAD CURRENT COEFFICIENT fl
(a) Minertia
Motor
Type
UGMMEM-06AA1
(a)
Minertia
Motor
Type
UGMMEM-06AA1
300
300
Ip= 100%
_'= 1
= 100%
ALLOWABLE 200
ALLOWABLE 200
= "
FREQUENCY
__
FREQUENCY
_
OF OPERATION
/p=200%
a'=2
_.._
OF OPERATION
(TIMES/MIN)
(TIMES/MIN)
/p= 300%
_
_
100
_
100
0
_
_
_
T
_
0
0.2
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
1.0
LOAD CURRENT COEFFICIENT /3
LOAD CURRENT COEFFICIENT/3
(b)
Hi-Cup
Motor
Type
UGHMED-12AA
(b)
Hi-Cup
Motor
Type
UGHMED-12AA
Fig.
1.10
Allowable
Frequency
of Operation
Fig.
1.12
Allowable
Frequency
of
Operation
11
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