8-02 Control Source
Select the source of the control word. This parameter cannot be
adjusted while the compressor is running.
Option: Function:
[0] None
[1] * FC Port
8-03 Control Timeout Time
Range: Function:
20 s* [0.1 - 200 s] Enter the maximum time expected
to pass between the reception of 2
consecutive telegrams. If this time
is exceeded, it indicates that the
serial communication has stopped.
The function selected in
parameter 8-04 Control Timeout
Function is carried out.
8-04 Control Timeout Function
Select the timeout function. The timeout function is activated
when the control word fails to be updated within the time
period specied in parameter 8-03 Control Timeout Time.
Option: Function:
[0] * O
[1] Freeze output
[2] Stop
[3] Jogging
[4] Max. speed
[5] Stop and trip
[20] N2 Override
Release
3.8.2 8-3* FC Port Settings
8-30 Protocol
Select the protocol for the integrated RS485 port.
Option: Function:
[0] * FC Communication according to the FC
Protocol.
[2] Modbus RTU Communication according to the
Modbus RTU protocol.
8-31 Address
Range: Function:
1* [ 0.0 - 247 ] Enter the address for the RS485
port. Valid range: 1–126 for FC-bus
OR 1–247 for Modbus.
8-32 Baud Rate
Select the baud rate for the RS485 port. Default refers to the FC
Protocol. Changing Protocol in parameter 8-30 Protocol may
change the baud rate.
Changing Protocol in parameter 8-30 Protocol may change the
Baud Rate.
Option: Function:
[0] 2400 Baud
[1] 4800 Baud
[2] 9600 Baud
[3] 19200 Baud
[4] 38400 Baud
[5] 57600 Baud
[6] 76800 Baud
[7] 115200 Baud
8-33 Parity / Stop Bits
Parity and stop bits for the protocol using the FC Port. For some
of the protocols, not all options are available. Default refers to
the FC Protocol. Changing Protocol in parameter 8-30 Protocol
may change the baud rate.
Option: Function:
[0] Even Parity, 1
Stop Bit
[1] Odd Parity, 1
Stop Bit
[2] No Parity, 1
Stop Bit
[3] No Parity, 2
Stop Bits
8-35 Minimum Response Delay
Range: Function:
0.01 s* [ 0.0010 - 0.5
s]
Specify the minimum delay time
between receiving a request and
transmitting a response. This is
used for overcoming modem
turnaround delays.
8-36 Maximum Response Delay
Range: Function:
Size
related*
[ 0.1 - 10.0 s] Specify the maximum allowed delay
time between receiving a request
and transmitting the response. If
this time is exceeded, no response
is returned.
8-37 Maximum Inter-char delay
Range: Function:
0.025 s* [0.025 -
0.025 s]
Specify the maximum delay time
between 2 characters in a message.
Exceeding this delay time causes
the message to be discarded.
Parameters Programming Guide
MG18P202 Danfoss A/S © 06/2019 All rights reserved. 41
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