Mitsubishi Electric F700 Instruction Manual page 98

Frequency setting by external terminals
CAUTION
⋅ The
range of frequency
(acceleration) and RM (deceleration) is 0 to maximum
frequency (Pr. 1 or Pr. 18 setting). Note that the
maximum value of set frequency is (main speed +
maximum frequency).
⋅ When the acceleration or deceleration signal switches on, acceleration/deceleration time is as set in Pr. 44 Second acceleration/
deceleration time and Pr. 45 Second deceleration time. Note that when long time has been set in Pr. 7 or Pr. 8, the acceleration/
deceleration time is as set in Pr. 7 or Pr. 8. (when RT signal is off)
When the RT signal is on, acceleration/deceleration is made in the time set to Pr. 44 Second acceleration/deceleration time and Pr. 45
Second deceleration time, regardless of the Pr. 7 or Pr. 8 setting.
⋅ Even if the start signal (STF or STR) is off, turning on the acceleration (RH) or deceleration (RM) signal varies the preset frequency.
⋅ When switching the start signal from ON to OFF, or changing frequency by the RH or RM signal frequently, set the frequency setting
value storage function (write to EEPROM) invalid (Pr. 59 ="2, 3"). If set valid (Pr. 59 ="1"), frequency is written to EEPROM frequently,
this will shorten the life of the EEPROM.
⋅ The RH, RM, RL signals can be assigned to the input terminal using any Pr. 178 to Pr. 189 (input terminal function selection). When
terminal assignment is changed, the other functions may be affected. Please make setting after confirming the function of each
terminal.
⋅ Also available for the network operation mode.
REMARKS
During jog operation or PID control operation, the remote setting function is invalid.
Setting frequency is "0"
⋅ Even when the remotely-set
frequency is cleared by turning
on the RL (clear) signal after
turn off (on) of both the RH and
RM signals, the inverter
operates at the remotely-set
frequency stored in the last
operation if power is reapplied
before one minute has elapsed
since turn off (on) of both the
RH and RM signals
⋅ When the remotely-set
frequency is cleared by turning
on the RL (clear) signal after
turn off (on) of both the RH and
RM signals, the inverter
operates at the frequency in the
remotely-set frequency cleared
state if power is reapplied after
one minute has elapsed since
turn off (on) of both the RH and
RM signals.
When selecting this function, re-set the maximum frequency according to the machine.
♦ Parameters referred to ♦
Pr. 1 Maximum frequency, Pr. 18 High speed maximum frequency
Pr. 7 Acceleration time, Pr. 8 Deceleration time, Pr. 44 Second acceleration/deceleration time, Pr. 45 Second deceleration time
Pr. 28 Multi-speed input compensation selection
Pr. 178 to Pr. 189 (input terminal function selection)
90
changeable by RH
Forward rotation(STF)
Remotely-set frequency stored last time
Acceleration (RH)
Deceleration (RM) OFF
Clear (RL)
Forward rotation
(STF)
Power supply
Remotely-set frequency stored last time
Acceleration (RH)
Deceleration (RM) OFF
Clear (RL)
Forward rotation (STF)
Power supply
CAUTION
Refer to page 88
Refer to page 101
(Hz)
The set frequency is clamped at (main speed + Pr.1 )
Output frequency is
clamped at Pr.1
Pr.1
Main speed setting
0Hz
Acceleration(RH)
Deceleration(RM)
ON
Within 1 minute
Remotely-set frequency stored last time
ON
ON
ON
ON
One minute
More than
one minute
ON
ON
ON
ON
Refer to page 78
Set frequency
Output frequency
Time
ON
ON
Time
ON
ON
Operation is performed at the set
frequency 0Hz.
Time
ON
ON
.
Refer to page 91