D877 MGB Rev01 HE250.docx
19/50
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UPWARD 6/8 - DECELERATION (DSP=u3)
Upon arrival at the deceleration contact in the shaft, turn off the high speed HSP signal and the valve unit
executes the deceleration curve seted up in the parameters P207, P208 (209,210,218) and P211 for to obtain
the low speed value corresponding to P212 parameter.
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UPWARD 7/8 - LOW SPEED (DSP=u4)
The duration of low speed phase depends on the difference between the space from the contacts of
deceleration and stopping in the shaft and the deceleration distance programmed in the parameters. When
during the deceleration and low speed phases, the parameter P 456 = 1 is setting, is calculated the distance
traveled until the stop contact that allows to run the next deceleration with a minimum low residual distance
setted in the P458 parameter. The calculation is reset when the board is off.
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UPWARD 8/8 - STOPPING (DSP=u5)
Upon arrival at the stopping contact in the shaft, it must turn off the upward UP signal. If the Soft-Stop
parameter P232 = 1, the valve unit executes the stopping curve seted up in the parameter P213.
If during the starting phase it has not used the AVV motor contact activation, to stop the motor with a delay of
1.5 s, otherwise when the signal AVV turns off, to stop the motor (and then the input signal SFY).
However not to delay the stopping of the motor more than 2 s from the arrival on the stopping contact in the
shaft.
Subsequently the shutdown of the RDY board signal also remove the ERS solenoid input. The RDY board
signal is active again after about 0.5 s, when the valve unit will be ready for the next travel.
However not to delay to remove the ERS solenoid input more than 2 s from the arrival on the stopping contact
in the shaft.
