Hitachi L100DN DeviceNet Series Addendum Read This First Manual page 53

j. With the inverter output ON and the motor rotating, now you can use the host
computer to monitor the inverter's polled I/O. The following diagram shows the
expected (typical) data, using the default settings.
Inverter Polled I/O
Produced (Output)
MSB
Word 0 0 0 0 0
Word 1 0 0 0 0
Word 2 0 0 0 0
Word 3 0 0 0 0
Using the Polled I/O Data Map for produced (output) data given in Step 5, you
can interpret the data sent to the host computer. For scalar values such as
frequency and current, a scale factor of 1, 10, 100, or 1000 applies. The "Network
Register Map" on page 78 lists the inverters parameters and the scale factor used
to get/set the parameter value over the network. To get a parameter's actual value,
divide the value sent by the inverter (in decimal form) by the scale factor.
• Word 0 – The status bits that are set have the meanings indicated below:
MSB
Word 0 0 0 0 0
Inverter state = 1
(Run Mode)
• Word 1 – The decimal value "1500" for output frequency corresponds to 15.00Hz
(D_01 reading) when the scale factor of 100 is applied. Recall that the powerup
test procedure for the installation set F_01 = 15.0Hz (restore this value if needed).
• Word 2 – The decimal value of "11" for output current corresponds to 1.1A (D_02
reading) when the scale factor of 10 is applied. This value represents a small
inverter and motor size; your reading may differ.
• Word 3 – The decimal value of "0" for trip code (D_08 reading) corresponds to
"no trip" status.
NOTE: When a trip event occurs, the polled I/O will indicate it by Trip Bit = 1 in
Word 0 and the actual Trip Code in Word 3. When the trip condition is cleared (Stop/
Reset key), then the Trip bit = 0, but the Trip Code in Word 3 remains. To clear it also,
you must clear the inverter's trip history. For more information, see "Restoring Factory
Default Settings" on page 94.
k. Press the Stop/Reset key on the inverter. This will cause the motor to stop, and the
Polled I/O (produced data) shown above will return to 0 values.
l. To complete this monitoring sequence, stop the host computer's DeviceNet scan.
High byte
LSB MSB
0 0 0 1 0 0 0 1
0 1 0 1 1 1 0 1
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
High byte
LSB MSB
0 0 0 1 0 0 0 1
Freq. arrival
L100DN Inverter
Low byte
LSB Hex
0 0 0 1 0111h
1 1 0 0 05DCh
1 0 1 1 000Bh
0 0 0 0 0000h
Low byte
LSB Hex
0 0 0 1 0111h
FW Run
53
Decimal
273
1500
11
0
Decimal
273