92
30
36
30mm x 1.5mm
< 8
Cable
Output LED
Sensing LED
10
Calibrate (CalMag)
Connections - PU1TZAI:
Introduction:
The ROTASLIP series is designed to detect slippage or stoppage
on elevators, conveyors, fans etc. The units require no connection
with the shaft, have no moving parts and a virtually unlimited life.
They incorporate microcontroller circuitry which automatically cali-
brates to 20% under normal speed and provides a programmable
0-30 second start up delay.
Installation:
The Inductive sensor section detects a metal target on the shaft.
The target can be an existing bolt head or similar.
Ideally, the target should be of ferrous metal. Maximum range
ferrous materials is 8mm with a 30mm dia. circular target. Smaller
targets may be used but operating distance will be reduced.
The ROTASLIP should be mounted adjacent to the target,
ensuring that the distance to the target does not exceed the stated
maximum.
When mounted against a solid steel shaft, the target or bolt head
should protrude from the shaft at least 15mm, otherwise the sen-
sor will not be able to distinguish the target from the shaft and red
input light would stay on permanently.
Wiring to the ROTASLIP can be any length as required, using
ordinary unscreeened cable. However, if long cable runs are to
be used, the wiring should not be positioned adjacent to cables
carrying high voltage or current.
Two locknuts are provided to mount the units in position. Mount
securely to withstand vibration.Ensure that the unit and target are
adequately guarded.
Two types of ROTASLIP are available:
PU1TZAI is a two wire, FET output type sensor.
The PU1TZAI must be wired through a load/resistor (see diagram)
and not directly to the supply voltage. The supply polarity is not
important and the load can be connected in either wire.The cable
on the unit can be extended to virtually any length in ordinary 2
wire, cable.
PU1TRAI is a 5 wire, relay output type sensor rated at 3A 60V ac
non-inductive.
Cabling:
Connect the unit as shown in the connections diagram. The
PU1TZAI is a two wire device. Do not connect directly across the
supply without a load present.
The PU1TZAI is designed to operate into any type of PLC input
and as such it only requires approximately 5 milli-watts to operate
correctly eg 5 volts at 1 milliamp. Therefore the cabling MUST be
arranged in such a way as to prevent even the smallest amount
of induced voltage from adjacent ac cables being present at the
sensor. Failure to do so will cause the sensor to be continually
powered and the start-up timer will not operate at true power-on.
Dimensions (in mm):
Commissioning & Auto-calibration
Two LED's are provided for information purposes, on the
ROTASLIP. The input LED flashes everytime a target passes the
face of the sensor. With normal running, the output LED is a static
and the output is on (energised). With an underspeed condition
both the LED and output will be off (de-energised).
The ROTASLIP is factory set to a speed of 10PPM and a start up
time of 5 seconds. If the time delay required is greater than 5 sec-
onds, see 'Recalibration for a Different Setting', otherwise, proceed
as follows-
Apply power to the machine and ROTASLIP.
Ensure that the machine has reached normal running speed and
then place the magnet on the 'Cal' point (above the cable entry),
Count flashes of the output LED to set the start delay required in
seconds, then remove magnet.
The output LED will echo the setting in seconds, during which time,
automatic calibration to 20% below normal speed will be carried
out.
Recalibration for a Different Setting:
If the unit is to be used for a slower speed or with longer time delay
than previously set, the unit may trip out before it can be cali-
brated. This can be avoided by applying power while holding the
magnet on the Cal point and removing the magnet only when the
machine has reached normal speed. Wait for the output LED to
illuminate permanently and then recalibrate as above.
Notes:
Supply:
24-240V ac
15-240V dc
2VA
Output Relay:
3A 60V ac/dc max.
Non-inductive.
Brown
Blue
Black
Black/Red
Black/Orange
Supply:
24-240V ac/dc
Load
100mA max.
NOTE:
1) Supply polarity is not important & load can be connected
in either lead.
2) Supply voltage MUST be same voltage as supply voltage
being used.
Connections - PU1TRAI:
Blue
Black
PU1TRAI
PU1TZAI
f
!
f
!
NOTE: f= 1500A Capable fuse
500mA max. rating.
1 fuse per unit MUST be used.
!
IECEx Certificate No: IECEx BAS 12.0118X
Ex ma IIC T5 Ga
Ex ma IIIC T100°C Da
Tamb= -15°C to +50°C IP66
For Certificate of Conformity go to www.iecex.com
