If a connected thermostat is tripped (break between the two terminals
“
TB
”
), the device is switched off
and is not switched back on.
Relais
“
K2
”
is de-energized, terminals
“
21
”
-
“
22
”
bridged. The signal lamp
fl
ashes in code
|
2
|
(
Diagnostics / faults).
Possibilities for re-starting after the drive has cooled down (terminals
“
TB
”
bridged) by:
•
By switching the mains voltage off and then on again.
•
Via a digital input for remote control (ON / OFF enable).
Danger due to electric current
An outside voltage may never be connected to the terminals
“
TB
”
!
If a bypass circuit is installed, or in the
“
100 %
”
position on devices with a main switch, the motor
protection inside the controller has no function. In this case, additional motor monitoring may be
required.
5.7
Enable, Device ON / OFF (Digital In 1 = D1)
Electronic disconnection and Reset after motor fault via
fl
oating contact at terminals
“
D1
”
-
“
D1
”
•
Device
“
ON
”
for closed contact.
•
Controller
“
OFF
”
with opened contact.
Activation via
fl
oating contacts, a low voltage of approx. 24 V DC is connected.
Danger due to electric current
•
No disconnection (isolation) when turned off by remote, in accordance with VBG4
§
6)!
•
Never apply line voltage to the digital input!
5.8
Relay outputs (K2)
An operating message or activation of a damper control motor is possible via the potential-free
contacts of the relay
“
K2
”
(max. contact load
technical data and connection diagram).
At a modulation above 5 Hz the relay energizes, i.e. the terminals
“
21
”
and
“
24
”
are bridged.
At low modulation (below 3 Hz), switch off by the enable, switch off of line voltage or in case of a fault,
the relay de-energizes.
5.9
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.
•
When the contactor is switched off at the inverter output, the
“
enable
”
(ON / OFF) must also be
opened and closed again when it is switched back on. When switching off, wait at least 90 seconds
before switching back on!
•
Never apply line voltage to the inverter output!
5.10
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).
6
Start-up
6.1
Prerequisites for commissioning
Attention!
1. You must mount and connect the device in accordance with the operating instructions.
2. Double check that all connections are correct.
3. The mains voltage must match the information on the rating plate.
4. The rated current on the rating plate will not be exceeded.
5. Make sure that no persons or objects are in the hazardous area.
Operating Instructions
FRQ5S-E-6/10A
Start-up
L-BAL-E247-GB 1512 Index 001
Part.-No. 00163444-42
12/17
