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Appendix A - MODBUS RTU Protocol
Parameter
#
Range
Default
Slow SP & Saving Parameters
Energy Saving
57
0..10
10 ( Max Save)
Slow
Speed_TRQ.
58
1..10
8
Max_Slow_SP_Time
59
1..60
30
(Seconds)
Reserved
60..63
Fault Settings
Phase
Loss
64
0..1
(0-Disabled,
1-Enabled)
1
(Enabled)
Phase Sequence
65
0..1 (0-Disabled, 1-Enabled)
0 (Disabled)
Auto Reset
66
0 / 1 (0-Disabled, 1-Enabled)
0 (Disabled)
Thermistor Type
67
0 / 1 (0 - PTC, 1 - NTC)
0 (PTC)
Thermistor Trip
68
0..100 Tenth Kohm 0.1..10 K
0 (Disabled)
Undercurrent RST
69
10..120 (&121=Disabled)
121 (Disabled)
Reserved
70-72
I/O Settings
PROG. Input # 7
73
0..2 (0=En.Save,1=S.Spd,2=Rst)
0 (Reset)
PROG. Input # 8
74
0..2 (0=D.Set.,1=Rvrs,2=Rst)
0 (Dual Set)
PROG. Fault Relay
75
0..1 (0=Fault close, 1=Fault open)
0 (Fault close)
Relay
ON
Delay 76
0..3600
0
(Seconds)
Realy
OFF
Delay 77
0..3660
0
(Seconds)
Analog
Output
78
0-
Current,
0..200% of motor_fla
0- Current
Reserved
79..80
COMM. Parameters
COMM.
Protocol 81
0-Modbus,1-Profibus,
2-DeviceNet
0-Modbus
Baud Rate
82
12..96 (*100) Auto for Profibus
96 (9600 bps)
Parity Check
83
0/1/2 (Even / Odd / No)
0 (Even)
Station Number
84
1..247 & (248= Off)
248 (Off)
1..126
&
(127=
Off)
for
Profibus
S.
Link
Par.
Set
85
0
(Disable),
1
(Enable)
0
(Disable)
S.
Link
Control
86
0
(Disable),
1
(Enable)
0
(Disable)
Reserved
87…89
Modbus_#_Array
90..109 (# of parameter)
(defaults # are:
1 - Logic Status, 2 - I, 3 - V, 5 – Control In, 11 – Thermistor
Resistance, 37 – Thermal Capacity, 10 – frequency,
4 - Phase
Sequence, 6-Dip Switch, 18 – Total Run Time,
19 – Total Starts, 20-Last Start Period, 21-Last Start Peak I,
22-time to start, 23 – Total Trips, 24-last trip Number, 25 – Pre Trip I,
26 – Time to Reset U/C, 39-Spare, 40-Spare
Notes
:
1.
Parameter # is "1 based". The address is 1 lower than parameter #. For example address of parameter #1 is
0 (40000).
2.
When the Preset Single Register Function (06) is used to adjust
one
parameter setting, the communication
program checks that the parameter value is within the allowed limits. If not, an Exception Response
(Exception code 03) is returned instead of Normal response. See Exception Responses later in this document.
3.
If Preset Multiple Register Function (16) is used to adjust one or multiple parameter settings, then even if one
or more parameter settings are out of range, Normal response will be returned.
ASTAT-XT program will check later the value of each parameter. If it is beyond the allowed limit, the limit
value will be stored instead of the transmitted parameter value.
4.
It is strongly recommended to preset parameter settings only when the motor is stopped.
The ASTAT-XT
enables, however to preset
one
parameter (using function 06 only) when the motor is running at full voltage.
When motor is Soft Started, Soft Stopped, runs with energy saving or at slow speed, the ASTAT-XT ignores
"Preset Single Register" or "Force Multiple Register" instructions. A "busy" Exception response is returned by
ASTAT-XT whenever its logic condition does not enable presetting.
