How To Access Parameters; Parameter Handling; Storage Of Data; Ind - GE AF-650 GP Design And Installation Manual

RS485 Installation and Set-...
Coil 0
33 Control not ready
34 Frequency converter not
ready
35 Coasting stop
36 No alarm
37 Not used
38 Not used
39 Not used
40 No warning
41 Not at reference
42 Hand mode
43 Out of freq. range
44 Stopped
45 Not used
46 No voltage warning
47 Not in current limit
48 No thermal warning
Table 9.10 Frequency Converter Status Word (Drive Profile)
Register Description
number
00001–00006 Reserved
00007 Last error code from an Drive data object
interface
00008 Reserved
00009 Parameter index*
00010–00990 000 parameter group (parameters 001 through
099)
01000–01990 100 parameter group (parameters 100 through
199)
02000–02990 200 parameter group (parameters 200 through
299)
03000–03990 300 parameter group (parameters 300 through
399)
04000–04990 400 parameter group (parameters 400 through
499)
... ...
49000–49990 4900 parameter group (parameters 4900 through
4999)
50000 Input data: Frequency converter control word
register (CTW).
50010 Input data: Bus reference register (REF).
... ...
50200 Output data: Frequency converter status word
register (STW).
50210 Output data: Frequency converter main actual
value register (MAV).
Table 9.11 Holding Registers
* Used to specify the index number to be used when accessing an
indexed parameter.
MG35M402
AF-650 GP™ Design and Installation Guide
1
Control ready
Frequency converter ready
Safety closed
Alarm
Not used
Not used
Not used
Warning
At reference
Auto mode
In frequency range
Running
Not used
Voltage warning
Current limit
Thermal warning
DET-767c All rights reserved.

9.2.4 How to Access Parameters

9.2.4.1 Parameter Handling

The PNU (Parameter Number) is translated from the
register address contained in the Modbus read or write
message. The parameter number is translated to Modbus
as (10 x parameter number) DECIMAL.
All parameters are named with one or two letters, a "-" and
a number for example, F-07. To access parameters, use
Table 9.12 because letters cannot be addressed.
Example: F-07=7, E-01=101, DR-53=1253.
Letter
F
E
C
P
H
K
AN
B
O
PB
SP
DR
ID
DN
PI
LC
EC
RS
EN
Table 9.12

9.2.4.2 Storage of Data

The Coil 65 decimal determines whether data written to
the frequency converter are stored in EEPROM and RAM
(coil 65=1) or only in RAM (coil 65=0).

9.2.4.3 IND

The array index is set in Holding Register 9 and used when
accessing array parameters.

9.2.4.4 Text Blocks

Parameters stored as text strings are accessed in the same
way as the other parameters. The maximum text block size
is 20 characters. If a read request for a parameter is for
more characters than the parameter stores, the response is
truncated. If the read request for a parameter is for fewer
characters than the parameter stores, the response is space
filled.
Number
0
1
2
3
4
5
6
7
8
9
10
12
15
22
23
24
25
26
29
91
9 9