Unit Description - Danfoss VLT FC 280 Operating Manual

Operating Guide | VLT® Midi Drive FC 280
Table 31: Settings in the Safety PLC
Value
F iPar CRC
Safety telegram & F-I/O data of
the safety telegram
The following PROFIsafe-related parameters cannot be edited in FC 280. They must have the same value in the safety PLC
communication to the gateway chip in FC 280 over PROFIsafe. The values in the following table are defined in the fieldbus GSD
description file, which is provided for the gateway chip in FC 280 by Danfoss, and must not be modified.
FC 280 has Type 1 of F-Address-Check, it means only F_DestAdd is checked by the drive.
The correctness of drive's iParameter must be ensured by user via commissioning test.
Table 32: Non-editable F-parameters
Parameter Value
F check iPar 0 = NoCheck
F CRC length 0 = 3 or 4 bytes CRC
F block ID 1 = F iPar CRC within F parameter block
F Par version 1 = V2 Mode
F SIL 8 = SIL3
1) It depends on PROFIsafe version: V2.4, 3 bytes CRC; V2.6, 4 bytes CRC.
PROFIsafe Watchdog Time
6.5.2.4
Use the F-parameter watchdog time (F WD time) to determine a watchdog time for the communication between F-host and F-device.
The minimum watchdog time has 4 parts:
DAT = Device Acknowledgment Time. The F-device receives a frame, processes it, and prepares a new frame to send.
l
Bus = the transfer time of the frame from the AC drive to F-host.
l
HAT = Host Acknowledgment Time. F-host receives a frame, processes it, and generates a new frame.
l
Bus = the transfer time of the frame from F-host to the AC drive.
l
DAT Bus
Figure 37: PROFIsafe Watchdog Time
70 | Danfoss A/S © 2024.10
(continued)
Description
The value must be the same as the final CRC of the parameter file on FC 280. The value can be seen
in MCT-10 after the verification of the parameter file is completed, on the control panel of the drive
or in the commissioning report printed from MCT-10.
The value must be the same as the safety telegram in FC 280. F-I/O data must be mapped as de-
scribed in the tables in 6.5.2.6.2 PROFIsafe Control Word
(1)
F WD Time (minimum)
HAT
and
NOTICE
NOTICE
Unit
Bus
Safety Functions
6.5.2.6.3 PROFIsafe Status Word.
Description
Manufacturer-specific iPar check.
CRC2 signature length.
Parameter block type identification.
Version no. of F parameters.
Employed SIL level of F-device.
AQ381425076031en-000201 / 130R1223