Parameter Communication Addresses
‑15‑
Table 1–2 Description of Modbus‑specific parameter addresses
Parameter Address Parameter Description
Frequency reference 1 set through
communication
1000H Communication reference (decimal)
–10000 to +10000
The communication reference is a
relative value (percentage). 10000
corresponds to 100.00%, and –10000
corresponds to –100.00%.
The communication references apply
when the frequency, torque upper
limit, V/f separation voltage, PID
reference, and PID feedback of the
MD520 AC drive are set through
communication.
As for frequency data, the
communication reference is a
percentage of the maximum frequency
(F0‑10). As for torque data, the
communication reference is a
percentage of the torque upper limit
(F2‑10 for motor 1 and A2‑48 for motor
2).
Frequency reference 2 set through
communication
7310H The unit of the written data is Hz. The
number of decimal places is consistent
with that defined by F0‑22. For
example, if the decimal value 1000 is
written, the frequency reference is
10.00 Hz when F0‑22 is set to 2.
Control command input to AC drive 1
(write‑only)
7311H 0: Stop according to the stop mode
defined by F6‑10
1: Run in forward direction
2: Run in reverse direction
3: Jog in forward direction
4: Jog in reverse direction
5: Coast to stop
6: Stop according to the stop mode
defined by F6‑10
7: Reset upon fault
Control command input to AC drive 2
(write‑only)
2000H 1: Run in forward direction
2: Run in reverse direction
3: Jog in forward direction
4: Jog in reverse direction
5: Coast to stop
6: Decelerate to stop
7: Reset upon fault
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