4B - W4005 BÜHLER ELEVATOR MONITORING SYSTEM R9.6 – 22 May 2020
Page
9
of
48
The TouchSwitch
™ is an electronic limit switch with no moving parts. When a belt misaligns or a pulley moves
over and contacts the sensor, the built-in electronic circuitry detects the lateral force of the belt or pulley
and activates a voltage free relay contact. This relay contact is used to immediately generate an alarm. The
face of the sensor is made from hardened stainless steel, so that there is virtually no wear when a belt
contacts it. The sensor is not affected by dust or material build up and will still work when completely covered
by material. Four sensors are provided in the kit and are expected to be installed in pairs
–
two sensors near
the top and two near the bottom pulleys.
6.3.3.
P300V34AI /B – Proximity Speed Sensor
P300 is an inductive proximity sensor which is used to detect the speed of an elevator shaft. This sensor gives
an opto-isolated pulsed transistor output, which the W4005NV46AI /B controller uses to calculate the
current shaft speed. P300 sensor is designed to be mounted on to the shaft using the Whirligig mounting
bracket (WG4A-BR /B).
6.3.4.
WG4A-BR /B – Whirligig® Speed Sensor Mounting
The Whirligig® is a fully guarded target for easy mounting of motion sensors. It is a target, bracket and guard
designed for the P300V34AI /B sensor included in the System. P300V34AI /B sensor is bolted to the Whirligig®
and the complete assembly either bolts to the machines shaft through a M12 tapped hole or is connected
magnetically using 4B’s patented Mag
-
Con™ adaptor
(*not included in the System kit). Shaft or machine
vibration does not affect the performance of the sensor, as the whole assembly moves with the shaft. With
the Whirligig, installation of speed sensors is simple, safe and reliable.
6.3.5.
ADB910V3AI /B * - Adjustable Depth Bearing Temperature Sensor
The ADB910V3AI /B bearing sensors are manufactured to screw directly into a bearing housing. Each sensor
is fitted with a grease nipple to allow lubrication of the bearing without the need for removal of the sensor.
The sensor is fitted with a mechanism to allow the temperature probe to be set at a variable depth to suit
your application. The temperature bead is of NTC (Negative Temperature Coefficient) response type. The
ADB910V3AI /B sensor cable has two cores. The connections are not polarity sensitive therefore special
connection requirements are eliminated. It is advisable however to connect all sensors in an identical
manner, this will reduce the risk of shorting.
7.
Specifications
7.1
Overall Packaging
Overall Packaging Dimensions
Dimensions
323mm x 323mm x 315mm (L x W x H)
Weight
4.3kg (W4005V46-SYS1 /B); 5.0kg (W4005V46-SYS2 /B)
Table 4 - System Packaging Dimensions
7.2
Airborne Noise
This system is electronic with no major moving parts. The airborne noise of the system is below 70dB(A).
When a siren is connected to the controller alarm/fault relay, it is up to the end user to make sure that the noise
levels of the selected siren comply with the Machinery Directive.
