Mitsubishi Electric FR-A800 Series Instruction Manual page 701

Pr.
434 Network number (CC-
N110 Link IE)
435 Station number (CC-Link
N111 IE)
541 Frequency command
N100 sign selection
 Network number and station number setting (Pr.434, Pr.435)
• Enter the inverter network number in Pr.434 Network number (CC-Link IE).
• The setting range of Pr.434 is "0 to 255", but its active range is "1 to 239". The values out of the active range are invalid
because such values cannot be transmitted to the master station.
• Use Pr.435 Station number (CC-Link IE) to enter the station number of the inverter.
• The setting range of Pr.435 is "0 to 255", but its active range is "1 to 120". The values out of the active range are invalid
because such values cannot be transmitted to the master station.
NOTE
• Use different station numbers for different devices. (If different devices have the same station number, the communication
cannot be performed properly. If an error occurs due to a duplicated number, re-assign the station numbers, then reset the
master station and the inverter power.)
• Station numbers do not have to be consecutive numbers.
• The Pr.434 and Pr.435 settings are applied after an inverter reset or next power-ON.
 Frequency command with sign (Pr.541)
• By adding a sign to the frequency command value, the start command (forward/reverse rotation) can be inverted to start
operation
• The Pr.541 Frequency command sign selection setting is applied to the frequency command from RWw0.
Rotations per minute
(machine speed) setting
using Pr.37 and Pr.144
Without
With
• Relationship between the start command and sign (Pr.541 = "1")
Start command
Forward rotation
Reverse rotation
NOTE
• When Pr.541 = "1" (with sign)
- When EEPROM write is specified by turning ON of RY22, write mode error (error code H01) will occur.
- When both RY21 and RY22 are turned ON, RY21 has precedence.
- When power is turned ON (inverter reset), the initial setting status of the sign bit is "positive" and the set frequency is 0 Hz.
(The motor does not operate at the frequency set before turning OFF the power (inverter reset).)
- When set frequency is written with the instruction code of HED or HEE, the sign of the frequency command is not changed.
Parameters referred to
Pr.37 Speed display, Pr.144 Speed setting switchover, Pr.811 Set resolution
700
5. PARAMETERS
5.15 (N) Communication operation parameters
Downloaded from ManualsNet.com
Initial
Name
value
0
0
0
Pr.541 setting Sign
0 Without
1 With
0 Without
1 With
Sign of the frequency
command
+
-
+
-
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Setting range
0 to 255 Enter the network number of the inverter.
0 to 255 Enter the station number of the inverter.
0 Signed frequency command value
1 Unsigned frequency command value
Setting range
0 to 59000
-32768 to 32767 (two's complement) -327.68 to 327.67 Hz
0 to 65535
-32768 to 32767 (two's complement)
Actual operation
command
Forward rotation
Reverse rotation
Forward rotation
Reverse rotation
switchoverpage 444
Description
Actual frequency command
0 to 590.00 Hz
It depends on Pr.37, Pr.144, and Pr.811
settings (in 1 or 0.1 increments).