Precautions For Use - Mitsubishi Electric FATEC FR-A800 Manual

2
UNDERSTANDING INVERTER SYSTEM
11) High speed RH............ Selects "High speed" from the multi-speed setting. Note that
12) Middle speed RM......... Selects "Middle speed" from the multi-speed setting. Note that
13) Low speed RL ............ Selects "Low speed" from the multi-speed setting. Note that
14) Second acceleration/
15) Output stop MRS ......... Stops the inverter output.
16) Selection of automatic
17) Forward STF ............ Forward rotation start signal
18) Reverse STR ............ Reverse rotation start signal
19) Inverter reset ............ Resets the fault output when the protective function is
20) Load torque ............... Indicates the load torque applied to the motor.
21) Motor speed ............... Indicates the motor rotation speed.
22) Load setting ............... Sets the load applied to the motor.
23) Load ON/OFF ............ Turns ON or OFF the load applied to the motor.
24) Overheat .................. Turns ON when the mechanical load applied to the motor
25) Thermal reset ............ Resets the thermal sensor when the mechanical load applied
26) Power supply MCCB ... Molded case circuit breaker for powering ON the
27) Emergency stop ......... Shuts OFF the power in case of emergency.
28) Instantaneous power
29) Instantaneous power
2.3

Precautions for use

(1) Set the maximum frequency to 60 Hz.
(2) Set the acceleration/deceleration
time to one second or longer.
(3) Do not leave the demonstration machine for a long time with the Load ON/OFF switch set
to ON and the Load setting VR high.
2.3 Precautions for use
8
deceleration RT ......... Selects the second acceleration/deceleration time.
restart after instantaneous
power failure CS ......... When the CS signal is selected, the inverter restarts
RES
failure ........................ Shuts OFF the power supply for the inverter.
failure time setting ...... Sets the instantaneous power failure time of when the
up to seven different speeds can be selected with a
combination of "Middle speed" and "Low speed".
up to seven different speeds can be selected with a
combination of "High speed" and "Low speed".
up to seven different speeds can be selected with a
combination of "High speed" and "Middle speed".
automatically at power restoration. (The parameter setting is
required for the automatic restart after instantaneous power
failure.)
activated.
(powder brake) is overheated.
to the motor (powder brake) is overheated.
demonstration machine.
instantaneous power failure button is pressed.
Technically, frequency can be set to a value higher
than 60 Hz and acceleration time can be set to a
value shorter than one second. However, setting
those values may damage the machine due to the
use of the powder brake, tachogenerator (TG), and
timing belt.