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.
5.11 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 andthe
earthedconductor. It must be ensuredthat the maximum external voltage at the control voltage
connections cannot exceed50V (between
“
GND
”
terminals and
“
PE
”
earthedconductor). If necessary,
a connection to the earthed conductor potential can be established, install bridge between
“
GND
”
terminal andthe
“
PE
”
connection (terminal for screening).
5.12 Zenec main switch for ETAvent fans
With ETAvent fans an emergency operation at maximum speedis possible (100 % function)
in the case of a fault in the master control technology or failure of the preset signal (0
–
10 V
or PWM signal).
Type Zenec, Part. no. 349022
Switch position:
•
Position
|
0
|
: Switches off the fan (lockable)
•
Position
|
1
|
: Operation Control
•
Position
|
100 %
|
: fans supporting the 100 % function run with maximum speed.
Technical data:
•
Housing protection IP65,
•
Dimensions (w x h x d) 86 x 121 x 117
•
Contact rating AC 250 V 20 A
Feature:
By connection of the terminals
“
7
”
and
“
8
”
in the
“
Zenec
”
according to the circuit diagram (
Appendix
–
Connection Diagram ETAvent), a fault message can be suppressedin switch position
“
0
”
(fault
message via the integratedfault message relay in the ETAvent fan).
If this fault message is not suppressedin switch position
“
0
”
the terminals
do not have to be
connected
.
Operating Instructions
UNIcon / Acontrol
Electrical installation
L-BAL-E051-GB 1035 Index 003
Part.-No. 00163311-GB
15/83
