Danfoss VLT HVAC Basic Drive FC 101, Руководство по конструкции

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Response
The normal response is an echo of the query, returned
after the register contents have been passed.
Field Name Example (HEX)
Follower Address 01
Function 06
Register Address HI 03
Register Address LO E7
Preset Data HI 00
Preset Data LO 01
Error Check (CRC) -
Table 7.30 Response
7.10.6 Preset Multiple Registers (10 HEX)
Description
This function presets values into a sequence of holding
registers.
Query
The query message specifies the register references to be
preset. Register addresses start at zero, that is, register 1 is
addressed as 0. Example of a request to preset 2 registers
(set
1-24 Motor Current to 738 (7.38 A)):
Field Name Example (HEX)
Follower Address 01
Function 10
Starting Address HI 04
Starting Address LO 19
No. of Registers HI 00
No. of registers LO 02
Byte Count 04
Write Data HI
(Register 4: 1049) 00
Write Data LO
(Register 4: 1049) 00
Write Data HI
(Register 4: 1050) 02
Write Data LO
(Register 4: 1050) E2
Error Check (CRC) -
Table 7.31 Query
Response
The normal response returns the follower address, function
code, starting address, and quantity of registers preset.
Field Name Example (HEX)
Follower Address 01
Function 10
Starting Address HI 04
Starting Address LO 19
No. of Registers HI 00
No. of registers LO 02
Error Check (CRC) -
Table 7.32 Response
7.11 Danfoss FC Control Profile
7.11.1 Control Word According to FC
Profile (8-10 Protocol = FC profile)
Speed ref. CTW
Master-follower
130BA274.11
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit
no.:
Illustration 7.13 Control Word According to FC Profile
Bit Bit value=0 Bit value=1
00 Reference value external selection lsb
01 Reference value external selection msb
02 DC brake Ramp
03 Coasting No coasting
04 Quick stop Ramp
05 Hold output
frequency use ramp
06 Ramp stop Start
07 No function Reset
08 No function Jog
09 Ramp 1 Ramp 2
10 Data invalid Data valid
11 Relay 01 open Relay 01 active
12 Relay 02 open Relay 02 active
13 Parameter set-up selection lsb
15 No function Reverse
Table 7.33 Control Word According to FC Profile
Explanation of the control bits
Bits 00/01
Bits 00 and 01 are used to select between the 4 reference
values, which are pre-programmed in
3-10 Preset Reference
according to the Table 7.35 .
RS-485 Installation and Set...
VLT
®
HVAC Basic Drive FC 101 Design Guide
94 MG18C502 - Rev. 2013-09-06
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