ZIEHL-ABEGG Acontrol PSET6, Руководство по эксплуатации

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5.4 Motor connection
The motor is connected at terminals U1 and U2. Several motors can be connected to the
device.
Attention!
The maximum total control current (speci
fi
ed for electronic voltage regulation) for all
motors may not exceed the device ’ s rated current.
If the maximum control current for electronic voltage regulation is not known, a
supplementary 20 % of the rated motor current must be allowed for.
When controlling motors from other manufacturers, the controllability and the maximum
current for electronic voltage regulation should be requested from the manufacturer.
Information
•
It is recommended that a separate motor protection unit be foreseen for each fan.
•
For motors with thermistors “ TB ” e.g. type S-ET10.
5.4.1 Running noise
When controlling ventilators using electronic voltage regulators, motor noise can occur
(due to the system), which can be troublesome (Phase cutting = series
“ P... ” ).
On fast running ventilators with a high level of air noise, this noise is relatively low. On
slow running ventilators with a low level of air noise, this noise may be dominant in the
lower speed range due to the occurrence of resonance.
For systems where noise is critical, we recommend using our
Fcontrol series frequency
converters with integrated sinusoidal fi lter.
5.5 Motor protection
The motor can be protected by connecting thermostats “ TB ” .
When multiple motors are connected, it is essential to ensure that thermostats “ TB ” are
always connected in series.
If a connected thermostat is tripped (break between the two terminals
“ TB ” ), the device is
switched off and is not switched back on.
Relais
“ K1 ” is de-energized, terminals “ 11 ” - “ 12 ” bridged. The signal lamp fl ashes in
code
|
1
|
(see 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).
Attention!
•
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.
Operating Instructions Acontrol PSET6 / PSET10 Electrical installation
L-BAL-E141-GB 1925 Index 004 Part.-No.
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