1 4 6
M O T OR DRIV E ALARMS
8.1.1 1. 1 2
DRIV E TRIP MESS A GE / Synchron
i
zat
i
on
l
oss
The PL/X contro
ll
er automat
i
ca
ll
y "
l
ocks on " to any 3-phase supp
l
y w
i
th
i
n a frequency range of 4 5 to 6 5
Hertz. Th
i
s a
ll
o w s the thyr
i
stors to be f
i
red at the correct
i
nstant dur
i
ng each supp
l
y cyc
l
e. The
synchron
i
sat
i
on c
i
rcu
i
t can cope w
i
th a
l
arge
l
eve
l
of supp
l
y d
i
stort
i
on to ensure operat
i
on w
i
th very d
i
storted
supp
li
es. The
l
ock on t
i
me
i
s 0.7 5 seconds. If the standard w
i
r
i
ng conf
i
gurat
i
on
i
s adopted w
i
th EL1/2/3
permanent
l
y energ
i
sed then the phase
l
ock w
ill
on
l
y need to
l
ock on dur
i
ng the f
i
rst app
li
cat
i
on of po w er.
Th
i
s a
ll
o w s the ma
i
n contactor to be operated very rap
i
d
l
y w
i
th m
i
n
i
ma
l
start up de
l
ay
i
f requ
i
red.
W
i
r
i
ng conf
i
gurat
i
ons that
i
nvo
l
ve app
li
cat
i
on of the aux
ili
ary supp
l
y co
i
nc
i
dent w
i
th a start
requ
i
rement w
ill
have 0.7 5 second de
l
ay pr
i
or to ma
i
n contactor energ
i
sat
i
on.
If the supp
l
y frequency exceeds the m
i
n/max
li
m
i
ts, or
i
f the contro
ll
er
i
s supp
li
ed from a po w er supp
l
y w h
i
ch
has excess
i
ve d
i
stort
i
on th
i
s may cause synchron
i
sat
i
on errors and the a
l
arm to operate.
Note. Th
i
s a
l
arm w
ill
operate dur
i
ng runn
i
ng. If there
i
s fa
il
ure to ach
i
eve synchron
i
sat
i
on at start, then the
a
l
arm C O N T A C T OR LO C K O U T
i
s d
i
sp
l
ayed. See 8.1.1 1.1 8 DRIV E TRIP MESS A GE / Contactor
A
l
arm de
l
ay t
i
me: 0.5 secs.
8.1.1 1. 1 3
DRIV E TRIP MESS A GE / Heats
i
nk overtemp
In the event of b
l
o w er fa
il
ure, or restr
i
ct
i
on of the coo
li
ng a
i
rf
l
o w , the heats
i
nk temperature may r
i
se to an
unacceptab
l
e
l
eve
l
. Under these cond
i
t
i
ons, the heats
i
nk overtemp a
l
arm w
ill
operate.
If th
i
s a
l
arm operates on un
i
ts f
i
tted w
i
th a heats
i
nk b
l
o w er,
i
t shou
l
d be checked for obstruct
i
on and the
coo
li
ng a
i
r path checked for obstruct
i
ons. Mode
l
s f
i
tted w
i
th t w
i
n top mounted fans are prov
i
ded w
i
th fan
sta
ll
protect
i
on. Once the obstruct
i
on
i
s removed the fan shou
l
d resume norma
l
operat
i
on. If the fan does not
run, the fan assemb
l
y must be rep
l
aced. For un
i
ts w
i
th an A C dr
i
ven rear mounted fan (PL/X 1 8 5/2 2 5/2 6 5)
check that the 1 1 0 V A C fan supp
l
y
i
s present on term
i
na
l
s B1, B2. For PL/X 2 7 5 - 9 8 0 check that the 2 4 0 V
A C fan supp
l
y
i
s present on the term
i
na
l
s prov
i
ded under the
l
o w er connect
i
on cover. For PL/X 2 7 5 -9 8 0 th
i
s
a
l
arm w
ill
a
l
so operate
i
f the supp
l
y vo
l
tage
i
s not present as w e
ll
as for over-temperature of the heats
i
nk.
The un
i
t enc
l
osure must be supp
li
ed w
i
th suff
i
c
i
ent coo
l
dry c
l
ean a
i
r. See 1 4.1 Product rat
The un
i
t must be a
ll
o w ed to coo
l
i
n order to re-start. A
l
arm de
l
ay t
i
me: 0.7 5 secs
8.1.1 1. 1 4
DRIV E TRIP MESS A GE / Short c
i
rcu
i
t d
i
g
i
ta
l
outputs
See 8.1.4 M O T OR DRIV E AL ARMS / D
8.1.1 1. 1 5
DRIV E TRIP MESS A GE / Bad reference exchange
See 8.1.6 M O T OR DRIV E AL ARMS / Reference exchange tr
Note. There
i
s a f
l
ag on h
i
dden PIN 7 0 1 w h
i
ch w arns of a bad reference exchange. Th
i
s f
l
ag
i
s reset by a
start or
j
og command.
M O T OR DRIV E AL ARMS 2
DRIV E TRIP MESS A GE 3
DRIV E TRIP MESS A GE 3
SY N C HRO NIZ A TIO N LO SS
M O T OR DRIV E AL ARMS 2
DRIV E TRIP MESS A GE 3
DRIV E TRIP MESS A GE 3
HE A TSINK O V ERTEMP
M O T OR DRIV E AL ARMS 2
DRIV E TRIP MESS A GE 3
DRIV E TRIP MESS A GE 3
SH ORT CIRC UIT DIG OP
M O T OR DRIV E AL ARMS 2
DRIV E TRIP MESS A GE 3
DRIV E TRIP MESS A GE 3
B A D REFEREN CE E X C H
Summary of Contents for PLX
Page 2: ...2 Contents ...
Page 202: ......