63
4. Parameter description
Parameter
Parameter
Factory
setting
Setting range
Remarks
Parameter
1
Only CR
51
1
1~2
2
CR and LF
52
1
0~10
(Note 2)
0~9999.8
do communication overtime test
according to the set value
53
99999
0~9999.8s
，
99999
99999
99999: No communication overtime test
(Note 3)
0
Warn and coast to stop
153
0
0, 1
1
No warning and keep running
0
Modbus ASCII mode, Protocol<1,7,N,2>
(Note 4)
1
Modbus ASCII mode, Protocol<1,7,E,1>
2
Modbus ASCII mode, Protocol<1,7,O,1>
3
Modbus RTU mode, Protocol<1,8,N,2>
4
Modbus RTU mode, Protocol<1,8,E,1>
154
4
0~5
5
Modbus RTU mode, Protocol<1,8,O,1>
Note: 1. The numbers of inverters witchthe communication interface enables a host computer to control is due to
the wiring mothed and impedance matching. Once Modbus protocol is selected, please set P.33 to
nonzero value.
2. If the time of communication error exceeds the set value of P.52, and P.153 is set to 0, an alarm will be
output, and the screen of DU01 will display
.
3. When P.53=99999, there is no time limit.
4. Modbus protocol. Protocol
<1,7,N,2> means 1 s
tart bit, 7 data bits, No parity bit, and 2 stop bit. N: no
parity, E: 1-bit even parity, O: 1-bit odd parity.
4.17
Speed display (P.37)
P.37
“
Speed display
”
●
In
‘
output frequency monitoring mode
’
, the screen will display the corresponding mechanical
speed.
Parameter
Factory setting
Setting range
Remarks
37
0 r/min
0~5000r/min
0
：
output frequency
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