
�
�
Figure 4: Explosion proof 907 Sensor and Pulser Disc
�
�
Figure 5: Explosion proof 907 Sensor and Pulser Wrap
Sensor Connection Table
Terminal
Sensor model
906/907
Other ESI
Sensors
Type NPN
ESI Prox
Type NPN
5 Supply
Red
Red
Brown
6 Signal
Black
White
Black
7 Common
White/Shield
Black/Shield
Blue
Power Input Table
Terminal
12 & 24 VDC
115 VAC
230 VAC
2
(+) Positive
Hot
Hot (L1)
10
(-) Negative
Neutral
Hot (L2)
Relay Connections
Terminal
Setpoint 1
Terminal
Setpoint 2
1
Common
11
Common
3
N.O.
9
N.O.
4
N.C.
8
N.C.
LRB 1000/2000
LRB 2000 ONLY
�������
������������
����������
����������
����������
����������
���������������
���������������
������
������ ������
������
������
������
������������
���������������
������
���������
Figure 3: Base Wiring Diagram
Switch 1
Set Point
������������������
�����������������������������
����
����
��
�����
�����
���
����
�����
���
��
�
�
ON
1 - 100 RPM
OFF
10 - 1000 RPM
Switch 2
Mode
ON
Underspeed
OFF
Overspeed
Figure 6: Setpoint Setup
There are 3 steps to calibrating the LRB 1000/2000
1. Determine whether the relay should de-energize when the shaft
speed drops below the set point speed (Under Speed Operation,) or
when the shaft speed goes above the set point speed (Over Speed
Operation.) Use the Over/Under Speed Selection Switch to place the
LRB 1000 in the desired mode (see Figure 6, for switch position.)
2. If the set point will be set to trip the relay at a speed below 100 rpm,
set the Set Point Range Selection Switch to the 1-100 rpm range. If
the set point will be set to trip the relay at a speed that is above 100
rpm and below 1000 rpm, select the 10-1000 rpm range
3. Set the Rotary Set Point Switches to the desired set point speed. The
switches can be set at any number from 01 to 99.
For example:
If the RPM Range Selection Switch is set in the 1—100 rpm Range and
the desired set point speed is 50 rpm, the Set Point Switches should be
set to 50. In the 10 to 1000 rpm range, the set point is 10 times the switch
setting (i.e. a switch setting of 80 results in a set point of 800 rpm.)
NOTE:
Calibration should be done with power to the LRB 1000 turned
OFF. If a change is made to the calibration while power is ON (Not
Recommended,) cycle power to the unit. This will store the new set point.
The standard pulser disc or wrap will produce 8 PPR.
2-4
Free Catalog and Application Assistance
1.800.328.6170
Website: www.electro-sensors.com
990-001300 Revision E