Mitsubishi Electric FR-F500 Series Instruction Manual page 200

Item
Power supply voltage V
1
Power supply side
current I
1
Power supply side power
P
1
Power supply side power
factor Pf
1
Output side voltage V
2
Output side current I
2
Output side power P
2
Output side power factor
Pf
2
Converter output
Frequency setting signal
Frequency setting power
supply
Frequency meter signal
Start signal
Select signal
Reset
Output stop
Alarm signal
Note 1. A tester cannot measure accurately.
2. When Pr. 195 "A, B, C terminal function selection" setting is positive logic.
3. When the carrier frequency exceeds 5kHz, do not use the instrument since using it may increase eddy-current losses produced
in metal parts inside the instrument, leading to burnout.
In this case, use an approximate effective value type instrument.
* Values in parentheses are those of the 400V class.
Measuring Points and Instruments
Measuring Point
Across R-S, S-T and T-R
〈Across L
-L , L -L and L -L
1 2 2 3 3
R, S and T line currents
〈L
, L and L line currents〉
1 2 3
At R, S and T, and across R-S,
S-T and T-R
〈At L
, L and L , and across
1 2 3
〉
L -L , L -L and L -L
1 2 2 3 3 1
Calculate after measuring power supply voltage, power supply side current and power supply side power.
P
1
× 100%
Pf =
1
× I
3 V
1 1
Across U-V, V-Wand W-U
U, V and W line currents
At U, V and W, and across U-V
and V-W
Calculate in similar manner to power supply side power factor.
P
2
× 100%
Pf =
2
× I
3 V
2 2
Across P-N 〈Across + and −〉
Across 2 (+) –5
Across 1 (+) –5
Across 4 (+) –5
Across 10 (+) –5
Across 10E (+) –5
Across FM (+) –SD
Across AM (+) –5
Across STF, STR, RH, RM, RL,
JOG, RT, AU, STOP, CS (+) -SD
Across RES (+) –SD
Across MRS (+) –SD
Across A-C
Across B-C
PROTECTIVE FUNCTIONS
Measuring Instrument
Moving-iron type AC voltmeter
〉
1
Moving-iron type AC ammeter
Electrodynamic type single-
phase wattmeter
Rectifier type AC voltmeter
(Note 1) (Not moving-iron type)
Moving-iron type AC ammeter
(Note 3)
Electrodynamic type single-
phase wattmeter
Moving-coil type (such as
tester)
Moving-coil type (Tester, etc.
may be used) (Internal
resistance: 50kΩ or larger)
Moving-coil type
(such as tester)
186
Remarks
(Reference Measured Value) *
Commercial power supply
Within permissible AC voltage
fluctuation (Refer to 187 page)
+ W + W
P1 = W
11 12 13
(3-wattmeter method)
Difference between phases is
within ±1% of maximum output
voltage.
Current should be equal to or less
than rated inverter current.
Difference between phases is 10%
or lower.
+ W
P = W
2 21 22
2-wattmeter method
(or 3-wattmeter method)
POWER lamp lit
1.35 × V
1
Maximum 380V (760V) during
regenerative operation
0 to 5V/0 to 10VDC
0 to ±5V/0 to ±10VDC
4 to 20mADC
5VDC
10VDC
Approximately 5VDC at
maximum frequency
(without frequency meter)
T1
8VDC
T2
Pulse width T1:
Adjusted by Pr.900
Pulse cycle T2: Set by Pr.55
(Valid for frequency
monitoring only)
Approximately 10DVC at
maximum frequency
(without frequency meter)
20 to 30VDC when open.
ON voltage: 1V or less
Continuity check (Note 2)
<At OFF> <At ON>
Across A-C: Discontinuity Continuity
Across B-C: Continuity Discontinuity