Default interface parameter
Baudrate
=
19200
Bits
=
8
Parity
=
Even (None, exception of devices agriculture)
Stop bits
=
1
Handshake
=
none
Information
If any matters are unclear, please contact our V-STE support department for control systems -
ventilation technology. The information sheet "Network structure of MODBUS" R-TIL08_01 contains
detailed information about "MODBUS".
5.15.3
LON
®
Bus system is possible via add-on module
Connection to the LON
®
bus system is possible via add-on module type
“
Z-Modul-L
”
(Part-No.
380053). Communication to controller via the RS-485 interface, FTT-10A transceiver.
5.16
Potential at control voltage connections
The control voltage connections (< 50 V) relate to the joint GND potential (Exception: Relay contacts
are potential free). There is a potential separation between the control voltage connections and the
protective earth. It must be ensured that the maximum external voltage at the control voltage
connections cannot exceed 50 V (between
“
GND
”
terminals and
“
PE
”
protective earth). If necessary, a
connection to the protective earth potential can be established, install bridge between
“
GND
”
terminal
and the
“
PE
”
connection (terminal for screening).
5.17
Bypass circuit
Please observe the following during bypass switching (controller shunt with mains voltage):
•
Mutual locking of mains contactor and bypass protection
•
Time delay of at least 1 second during switching
•
The controller
“
enable
”
(ON / OFF) must be simultaneously opened together with cut-off of the
protection on the controller output; during connection it must be simultaneously closed again. For
this a programming is necessary (
IO Setup Enable ON / OFF).
•
By switching OFF necessary waiting period before renewed switching on amounts minimum
90 seconds! (
connection suggestion for bypass with the required time-delay)
•
Never apply line voltage to the inverter output!
Operating Instructions
Fcontrol
–
model series FXDM
Electrical installation
L-BAL-E072-GB 1642 Index 008
Part.-No.
21/105