18
When it is not connected right, it indicates ‘0’ when at forward run (bit1=‘1’), ‘1’at reverse run
(bit2=‘1’)
note10) The relationship between Bit10 Forward Command, Bit11 Reverse Command, Bit01 Forward
Run(FX), and Bit02 Reverse Run(RX) are as follows. Bit10, Bit11 indicate information of the
present run command and Bit01, Bit02 indicate the present operation status. For example, if stop
command is put in while running forward, Bit11 Forward Command would be ‘0,’ but Bit01
Forward Run (FX) would be ‘1’when decelerating and be‘0’after it stops.
When Reverse Run command is put in, while running forward at a speed of 1800 RPM, Bit11
Reverse command and Bit01 Forward Run (FX) remain ‘1’ until the rotating direction of the motor
changes, decelerating from 1800 RPM.
note11) Indicates ‘1,’ when CON_20 Proc PID Enb(0x7514) is set to Enable(‘1’) and when it’s running
(bit13=‘1’). It indicates ‘0’ at stop.
note12) For SV-iV5, both positive and negative direction speed get indicated. For the positive direction
speed, if it is 1800 RPM, it gets indicated as 0708h and 1800 as decimal number. For the
negative direction speed, if it is -1800 RPM, it gets indicated as F8F7h. This negative number is
expressed as 1’s complement and the absolute value gets calculated as below.
(FFFFh – F8F7h)
(10)
= 0708h
(10)
= 1800
A negative sign gets in front of this absolute value and -1800RPM is the end result.
The calculation of the negative speed is as below.
Speed (RPM) = (FFFFh – FXXXh(received negative speed data))
(10)
× (-1)
note13) When communicating via Device Net, speed command is given with Hz.
note14) Checks up with the PostRamp Ref value during run. Speed is displayed by absolute value.
note15) Checks up with the PreRamp Ref value during run. Indicate speed by classifying signs and refer
to note11.
note16) Checks up with the DIS_01’s Torque Ref value during run. Calculate with 2’s complement since
negative torque value comes out during reverse run.
ex) When the read value is FE0Ch, it gets calculated as follows.
Torque(%)=(FFFFh-FE0Ch + 0001h)
(10)
× (-1)
=(01F3h + 0001h)
(10)
× (-1)
=(01F4h)
(10)
× (-1)
=-500
It is –50% since the unit is 0.1%
The formula would be,
Torque (%) = (FFFFh – FXXXh (received negative torque data) + 0001h)
(10)
× (-1)
note17) Default DISPLAY checks up as Tq. For the calculation, refer to note15.
note18) When CON_20 Proc PID Enb is set to Enable, read during run and save the value of 0x050B PID
input command. DIS_04 Process PID output checks up at Ref/FB’s Process PID command value.
It reads and saves the value of 0x050B PID input command only during run, so in case of chaged
value of the 0x050B PID input command at stop, you’ll still be able to know the former command
value through the 0x0024 PID Reference value. In this case, a value other than the DIS_04’s
Process PID command value gets saved and saves the same DIS_04’s Process PID command
