Siemens S120 - Downwards

Siemens S120_EN_rev06-08062017.docx 10-7
10.4.2 DOWNWARDS
After the modify of the parameters of interest, it is always necessary to save the new values on
the hard memory of the Control Unit (Copy from RAM to ROM), in order to prevent a loss of data at the
first shut down (voluntary or accidental). Using STARTER software, you have to switch ONLINE, then
press the push button Copy from RAM to ROM . Alternatively, see the procedure described to the chapter
9 for the setup by BOP.
Figura 57 - Downwards diagram DI=INPUT DO=OUTPUT
 Setting the START DOWNWARD
Preferably adjust only the parameters visible in the list User S120_Low. Some of parameters
mentioned are available only in the list User S120_High.
For departures "sweet" and without tearing it is necessary that the cabin moves slightly before
acceleration begins. This is obtained with the parameters:
PARAMETER
THE CABIN AT THE
FIRST MOVE UP THEN
DOWN
SUDDEN
ACCELERATION AT
START
CABIN ACCELERATION
TOO FAST
P22011 (2.3.2.2)
↓
↑
=
P22017 (2.3.3.2)
↓
↑
=
P22029 (2.3.4.2)
=
=
↑
P22041 (2.3.10.2)
=
=
↑
↑ increase the value of the parameter
↓ decrease the value of the parameter
= parameter has no effect
 Setting the STOP DOWNWARD
Preferably adjust only the parameters visible in the list User S120_Low. Some of parameters
mentioned are available only in the list User S120_High.
To get an accurate and "sweet" stop, with minor variations in load, it is necessary to adjust some
parameters:
PARAMETER
ARRIVAL TO
FLOOR STILL IN
DECELERATION
(NOT AT CONSTANT
SPEED)
OVER
TIME
AT LOW
SPEED
STOPPING
AFTER THE
FLOOR
STOPPING
BEFORE
THE
FLOOR
SUDDEN
STOP
UPWARD
JUMP
AFTER
STOP
P22035 (2.3.5.2)
↓
↑
=
=
=
=
P21542 (2.3.7)
=
=
↓
↑
=
=