4B - W4005 BÜHLER ELEVATOR MONITORING SYSTEM R9.6 – 22 May 2020
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10.13.2.
DIP Switches (SW2)
These switches are used to set the following settings:
Switch Number Description
Left Position
Right Position
1
Speed Detection Mode
Single Speed Mode
Differential Speed Mode
2
Start Up Delay
10s
30s
3
HBS Top Enabled
OFF
ON
4
HBS Bottom Enabled
OFF
ON
5
No Effect
-
-
6
No Effect
-
-
7
PLC Protocol Selection
ProfiNet
Ethernet/IP
8
No Effect
-
-
Table 13 – SW2 W4005NV46AI /B Settings
10.13.2.1.
Speed Detection Mode
The W4005NV46AI /B controller supports two speed modes: Single and Differential.
In single speed mode (this is the default mode) only one P300 speed sensor is used to monitor the bottom
shaft of the elevator. The W4005NV46AI /B is calibrated to a normal elevator running speed and an alarm is
raised if in normal running state the speed changes as explained in paragraph
In differential speed mode it is required for the user to install two P300 sensors*. The W4005NV46AI /B will
be calibrated to a ratio between the bottom and top shaft speeds. The running speed of the elevator can
vary since the W4005NV46AI /B
doesn’t have a normal running speed saved, but instead the ratio of the top
and bottom speeds must stay constant. If the bottom shaft becomes slower than the top shaft, then an alarm
will be raised.
*
Note:
Only one P300 sensor is supplied in the package as standard. The second sensor must be purchased
separately. Please see the end of this manual for contacts around the world.
10.13.2.2.
Start Up Delay
This is a time delay from when the elevator is started. During this time any speed alarms are ignored. This
gives the elevator time to reach normal running speed.
10.13.2.3.
HBS Top/Bottom Enabled
This switch gives an option to enable/disable temperature monitoring. This can only be done in Top and
Bottom sensor pairs.
When temperature monitoring is enabled, the bearing temperature sensors must be wired in
to the W4005NV46AI /B, otherwise an Open/Circuit Alarm will be constantly present, and the
W4005NV46AI /B will not allow for the elevator to start.
