7 4
C H A N GE PARA METERS
6.2.7 RUN M O DE R A MPS / Ramp
i
nput PIN 2 6
The factory defau
l
t connects T 4 to PIN 2 6. Th
i
s a
ll
o w s an externa
l
ana
l
ogue reference to enter the ramp
i
nput va
l
ue, and then th
i
s parameter behaves as a mon
i
tor of the ramp
i
nput va
l
ue.
6.2.8 RUN M O DE R A MPS / For w ard m
i
n
i
mum speed PIN 2 7
Note that w hen th
i
s parameter
i
s set bet w een 0 and + 0.5 % , then the ramp output fo
ll
o w s the
i
nput at the
des
i
red ramp rates through zero,
i
.e. there are no m
i
n speeds operat
i
ng and there
i
s no hyster
i
s
i
s around zero.
Note a
l
so that another mode of operat
i
on ex
i
sts w hen the 2 7)F ORW ARD MIN SPEED
i
s greater than 0.5 % ,
A ND, 2 8)RE V ERSE MIN SPEED
i
s bet w een 0 and -0.5 % . (See be
l
o w). In th
i
s case the 2 7)F ORW ARD MIN
SPEED
i
s operat
i
ve and the ramp output w
ill
not go negat
i
ve. Th
i
s fac
ili
ty may be used to prevent acc
i
denta
l
negat
i
ve rotat
i
on.
W
i
th 2 7)F OR W ARD MIN SPEED and 2 8)RE V ERSE MIN SPEED outs
i
de a band of + /-0.5 % , then both
m
i
n
i
mum speeds w
ill
be act
i
ve w
i
th 0.5 % hyster
i
s
i
s around zero.
6.2.9 RUN M O DE R A MPS / Reverse m
i
n
i
mum speed PIN 2 8
Note that w hen the F ORW ARD MIN SPEED parameter (see above)
i
s set bet w een 0 and + 0.5 % , then the
ramp output fo
ll
o w s the
i
nput at the des
i
red ramp rates through zero,
i
.e. there are no m
i
n speeds operat
i
ng
and there
i
s no hyster
i
s
i
s around zero.
Note a
l
so that another mode of operat
i
on ex
i
sts w hen 2 8)RE V ERSE MIN SPEED
i
s bet w een 0 and -0.5 % ,
A ND, 2 7)F ORW ARD MIN SPEED
i
s greater than 0.5 % . In th
i
s case 2 7)F ORW ARD MIN SPEED
i
s operat
i
ve
and the ramp output w
ill
not go negat
i
ve. Th
i
s fac
ili
ty may be used to prevent acc
i
denta
l
negat
i
ve rotat
i
on.
W
i
th 2 7)F OR W ARD MIN SPEED and 2 8)RE V ERSE MIN SPEED outs
i
de a band of + /-0.5 % , then both
m
i
n
i
mum speeds w
ill
be act
i
ve w
i
th 0.5 % hyster
i
s
i
s around zero.
RUN M O DE R A MPS 3
2 7)F OR W ARD MIN SPEED
2 7)F OR W ARD MIN SPEED
0.0 0 %
PAR A ME TER
RA N GE
DEF A ULT
PIN
F W D MIN SPEED
0.0 0 to + 1 0 5.0 0 %
0.0 0 %
2 7
Supports the forw ard + ve
ramp output at a m
i
n
i
mum
l
eve
l
RUN M O DE R A MPS 3
2 8)RE V ERSE MIN SPEED
2 8)RE V ERSE MIN SPEED
0.0 0 %
PAR A ME TER
RA N GE
DEF A ULT
PIN
RE V MIN SPEED
0 to -1 0 5.0 0 %
0.0 0 %
2 8
Supports the reverse -ve ramp
output at a m
i
n
i
mum
l
eve
l
.
RUN M O DE R A MPS 3
2 6)RA MP INPU T
2 6)RA MP INPU T
0.0 0 %
PAR A ME TER
RA N GE
DEF A ULT
PIN
RA MP INPU T
+ /-1 0 5.0 0 %
0.0 0 %
2 6
Sets the run mode ramp
i
nput
va
l
ue.
Содержание PLX
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