Instruction manual

5. Peripheral Devices
5 - 10
5-7 Speedometer and load meter
Speedometer and load meter can be output from the D/A output which is for measuring control data.
(1) Speedometer output
When speedometer is output, +10V DC is output at the motor’s maximum speed regardless of the
motor’s rotation direction. The following specifications are recommended for the display.
(a) Type YM-8G type DC voltage type (Mitsubishi)
(b) Rating 10VDC full scale
(c) Internal impedance approx. 10kΩ
(2) Load meter output
The load meter indicates the percentage of the load in respect to the motor's rated output. The
relation of the motor output capacity [kW] and load meter display [%] is as follows.
The following specifications are recommended for the display.
(a) Type YM-8G type DC voltage type (Mitsubishi)
(b) Rating 10VDC full scale
(c) Internal impedance approx. 10kΩ
(d) Scale indicating alarm at 100% or above (see right figure)
Motor rotation s
p
eed
(
r/min
)
Maximum rotation s
p
eed
MO1out put voltage (V)
0
10
S
p
eedometer out
p
ut s
p
ecification
Red zone
120
100
80
60
40
20
0
%
Load meter dis
p
la
y
Motor rotation s
p
eed
(
r/min
)
0 1500 6000 8000
Overload (for one minute)
zone
50%ED (15-minute)
(30-minute) zone
Continuous ratin
g
zone
Motor out
p
ut ca
p
acit
y
(
kW
)
Load meter 120%
Load meter 100%
Load mete
r
X 100%
30
-m
i
nute rat
i
ng
Continuous ratin
g
Load meter out
p
ut s
p
ecification