Mitsubishi Electric FREQROL-K Series Instruction Manual page 30

L%
Table 1 Measured Polnu and Measuring Instruments
9.
TROUBLESHOOTING
I
Remarks
Measured Item Measured Po~nt
Measuring Instrument
(Reference measured value)
Power supply voltage
V
1
Power source
s~de current
I1
Source slde power
P I
Power source s~de
power factor
Pf
1
Output "Itage
v
2
Output
1 2
Output power
P2
Output
power factor
Pf2
Convener output
F~~~~~~~~
stgnal
Frequency
setting
power supply
Frequency meter
s~gnal
Stan slgnal
Reset
Output stop
Base shut-off
operation alarm
stgnal
Commercial voltage
Across terminals
<
Mov~ng-~ron type Single-phase
LI and N
50Hz 198 to 262V AC
LI and N ltne current
At terminals LI
,
N
and across LI -N
Mov~ng-~ron type
e
type
Commercial voltage
Single-phase
50Hz 198 to 262V AC
P1
=
W11
Calculate after measurtng source voltage, source current and source power.
Pfl
=
fiv1
x I1
x
loo(%)
Across U-V, V-W and W-U
U, V and W llne currents
At term~nals U, V and W,
and across U-V,
and V-W
Rectifter type
*
(th~s
IS
not
moving-
iron type)
Moving-iron type
8
Dynamometer
tv
Pe
Difference between each
phase
IS
1 % or less.
Current should be no more
than Inverter rated current.
Difference between each
phase is 10% or less.
P2
=
W21
+
W22
Calculate llke power source side power factor.
Pf2
= P2 x
loo(%)
Across terrnlnals P and BN
Across term~nals 2 and 5
Across term~nals 1 and 5
Across term~nals 10 and 5
Across terminals
FM and SD
Across term~nals
STF and SD
Across termlnab
STR and SD
Across term~nals
RES and SD
Across M RS and SD
Across
terminals
B and C
4 v 2 X 12
Movlng coll type
(such a s clrcult
tester)
Movlng coll type
(Circu~t tester, etc.
may be used
(Internal reststance:
50kR or larger)
Moving toll type
a
(such
as
ctrcuir
tester)
POWER lamp
IS
Ilt.
1.35
x
V i
Maxlmum 380V durlng
Regeneratwe operatlon
Oto 5V DC
0 to 10V DC
DC 5V
"5"
IS
common
Approx. 5VDC at
maxlmum frequency
(when frequency
meter
IS
connected)
20 to 30V DC when opened
1 V DC or less at
ON voltage
c
E"
E
00
.z
n
c n
Continuity
checklng
.Under normal condlt~on,
there
IS
contlnulty across B
and C.
*When power
IS
off or base
IS
shut off, there
1s
non-con-
t~nuity across B and C.