Datalogic Laser Sentinel, Instruction Manual, Page: 97 / 152

ENCODERS
INSTRUCTION MANUAL
79
To configure the necessary zone sets for a dynamic application, enable the encoder
function in the Zone Set configuration page on DLSentinel.
Input Delay Max [msec]
This parameter is valid when there are at least two Zone Sets. It determines the delay to
apply between switching from one Zone Set to the next. The input delay allows waiting
for the Area Switching inputs to stabilize from their transient states before accepting the
Zone Set. Otherwise the activation and deactivation of the inputs could put the device
in undesired or invalid and temporary switching zone input combinations and therefore
cause the device to enter the fault state.
The minimum input delay (default) value is 30 msec. It can be increased in 30 msec
increments.
Area Switch No.
Sets the number of Areas Switches, i.e. the univocal input combinations that make the
Zone Sets change.
Active Input No.
Sets the number of available Active Inputs. This value can be increased according to the
number of Area Switches.
Encoder Δ [%]
This is the allowable variation in the speed measures collected by Encoder 1 and
Encoder 2. The minimum value is 0%, the maximum value is 45%, the default value is
25%.
To calculate the allowable variation for your application, use the following formula:
(V
max
– V
min
/ V
min
) * 100
Where:
V
max
= maximum speed
V
min
= minimum speed
If the Encoder Δ is exceeded, the OSSDs enter the OFF status to stop the vehicle.
Exceeding the Encoder Δ is only allowed within a certain time window, based on the
vehicle speed:
• If the vehicle speed is in the range between -10 cm/s and +10 cm/s, the vehicle
will not be stopped, regardless of how long the Encoder
Δ persists.