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".
5.13.3
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.
5.14
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 50V (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).
5.15
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)
5.16
Manual Bypass-Switch type S-D-25 and S-D-50
As accessories are manual main switches with bypass function available.
By switching OFF Frequency inverters necessary waiting period before renewed switching on
amounts minimum 90 seconds!
Switch position
•
|
0
|
= Switch OFF supply line (lockable)
•
|
AUTO
|
= Operation Control
•
|
100 %
|
= Operation Bypass (controller without supply)
Technical data
•
Line voltage max. 690 V, 50/60 Hz
•
Rated current
–
Type S-D-25 Part.-No. 349035: 25 A
–
Type S-D-50 Part.-No. 349040: 50 A
•
Dimensions w x h x d [mm]
–
Type S-D-25: 115 x 115 x 163
–
Type S-D-50: 135 x 135 x 188
•
Protection class IP65
S-D-25
AUTO
0
100 %
3 ~ 400 V
Controller
S-D-25
02.12.2008
v_sd25_m.vsd
M
Manual Bypass-Switch type S-D-25 / S-D-50
Operating Instructions
Fcontrol
–
model series FKDM..-C
Electrical installation
L-BAL-E057-GB 1304 Index 009
Part.-No. 00163327-GB
15/74
