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MODBUS Communications: H5
User parameters for MODBUS communications are shown in the following table.
Name
Parameter
Number
Display
Drive Node
Selects Drive station node
Address
number (address) for Modbus
H5-01
terminals R+, R-, S+, S-. The
Serial
Drive's power must be cycled
Comm Adr
for the setting to take effect.
Communication
Selects the baud rate for
Speed
Modbus terminals R+, R-, S+
Selection
and S-. The Drive's power
must be cycled for the setting
to take effect.
H5-02
0: 1200 bps
Serial Baud
1: 2400 bps
Rate
2: 4800 bps
3: 9600 bps
4: 19200 bps
Communication
Selects the communication
Parity
parity for Modbus terminals
Selection
R+, R-, S+ and S-. The Drive's
power must be cycled for the
H5-03
setting to take effect.
Serial Com
0: No Parity
Sel
1: Even Parity
2: Odd Parity
Stopping
Selects the stopping method
Method
when a communication
After
timeout fault (CE) is detected.
Communication
H5-04
0: Ramp to Stop
Error
1: Coast to Stop
2: Fast-Stop
Serial Fault
3: Alarm Only
Sel
Communication
Enables or disables the
Fault
communications timeout fault
Detection
(CE).
Selection
0: Disabled - A communication
loss will not cause a
H5-05
communication fault.
1: Enabled - If communication
Serial Flt
is lost for more than 2
Dtct
seconds, a CE fault will
occur.
Drive
Transmit
Set the delay time from when
Wait Time
H5-06
the Drive receives data to when
the Drive sends data.
Transmit
WaitTIM
RTS
Enables or disables "request to
Control
send" (RTS) control:
Selection
H5-07
0: Disabled - RTS is always on
1: Enabled - RTS turns on
RTS
only when sending
Control Sel
* If H5-01 is set to zero, then the drive will be unable to respond to Modbus communication.
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Setting
Factory
Description
Range
Setting
0 to 20
*
0 to 4
0 to 2
0 to 3
0 to 1
5 to 65
0 to 1
Control Methods
Change
Open
V/f
during
Loop
V/f
with
Operation
Vector
PG
1
1F
No
A
A
A
3
No
A
A
A
0
No
A
A
A
3
No
A
A
A
1
No
A
A
A
5ms
No
A
A
A
1
No
A
A
A
User Parameter Tables
Open
MODBUS
Flux
Loop
Register
Vector
Vector
2
A
A
425H
A
A
426H
A
A
427H
A
A
428H
A
A
429H
A
A
42AH
A
A
42BH
59
5-
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