SycoTec easyDive 4425 - Emergency Motor Stop at Power Failure; Counter-Clockwise Operation

EN
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To use the fixed value (fixed frequency) in P104 to P106, set P7-select operation to "selection", as well as
P142-enabling FF to “remote control". Selection is effected from control inputs IN5 and IN6.
If both inputs are on 0 V, then the setpoint value from P1–N_rated or from analogue input AIN1/AIN2 is
used – depending on the condition of P141-input for f_soll. This allows the use of up to four fixed
frequencies. The following table illustrates the assignment of the input combinations.
input IN5 input IN6 active setpoint value
L L P1–N_rated or AIN1
(1)
L H P104-FF1
H L P105-FF2
H H P106-FFF3
L = low voltage (0 V), H = high voltage (24 V)
(1)
Note: with this combination the setpoint value in P141-input for f_soll is selected, i.e. P1–N_rated or from analogue
input AIN1 or AIN2 (dependent on P129).
4.7 Emergency Motor Stop At Power Failure
With parameter P58-emerg. stop, the frequency inverter can be set so that a running motor is
automatically braked in the event of failure or if the mains voltage falls below ones threshold value. The
frequency inverter supplies itself from the motor voltage still present, and braking is performed with
maximum power of the brake resistance. The motor generally cannot be braked to a complete stop since
the motor voltage is no longer sufficient for supplying the frequency inverter.
If an emergency stop occurs as a result of a brief drop in mains voltage, the motor is braked to a stop. In
order to start the motor again, the operator must first input a stop command followed by a start
command.
4.8 Counter-clockwise Operation
In standard operation, the frequency inverter operates clockwise. With one of the parameters P111-input
IN2 to P113-input IN4, a digital input can be configured for counter-clockwise operation. If the
corresponding input is supplied with voltage, the direction of rotation changes to counter-clockwise. If the
direction of rotation is switched while the motor is running, the motor is first braked before it is powered
up again in the altered direction of rotation.