ZIEHL-ABEGG Fcontrol FTET4AHMQ, Руководство по эксплуатации

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0 .. 100 %
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09.05.2007
v_hochlaufzeit_ruecklaufzeit.vsd
1 external Signal
2 Setting
3 Rampup time
4 Rampdown time
7.8.6 Setting Current limit
Current limit
As an additional safety function the device has a current limit, this can be adapted if
necessary.
The setting refers to the motor rated current of the device (100 % = setting: MotorRa-
tedCurr.).
On exceeding the percentage value set here, the modulation is reduced until the set
current is set again. This prevents overloading of the motor.
Setting range: 100...130 %
Factory setting: 120 %
E1 Actual
Active current limit is signaled by a bright triangle in the display
7.8.7 Setting brake function
In factory setting the device has an automatic brake function. The brake function is always activated
just before modulation will start after the modulation has returned to
“ 0 ” .
The inverter supplies DC brake current for about 5sec. that will bring the motor to a complete stop.
Information
The brake function can prevent over current disconnection to occur after modulation returns to a fast
rotating motor.
Additionally the brake function can avoid that a fan, which is switched-o
ff , be driven in the wrong
direction (e.g. when a draft turn a fan, which is switched-o ff , in the wrong direction and continue to be
driven in the wrong direction after it is switched-on).
In some cases where the fan is driven powerfully in the wrong direction, it might not be possible to start
the fan to continue in the right rotating direction.
DC brake mode
DC brake mode
Setting function of DC-brake for frequency inverters.
0 = no brake function.
1 (factory setting) = brakes before start (before modulation is returnd)
2 = Special function, brakes before stop (as soon as modulation “ 0 ” ).
The motor does not run out up to stop. The motor is braked actively, as soon as no
modulation is present (Setpoint =
“ 0 ” or Enable = “ OFF ” ).
DC brake time
DC brake time
Maximal length of DC-brake for frequency inverters.
If the braking is activated, the d.c. brake torque is active for this time.
Setting range: 0...250 sec.
Factory setting: 5 sec.
Operating Instructions Fcontrol – model series FTET4/6/10AHMQ The Installation menu
L-BAL-E094-GB 2022/47 Index 007 Part.-No.
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