VEEDER-ROOT brand
Proximity and Precision Switches
Motion Detectors
Motion Detectors
Combined speed sensor
and controller . . . stops
jammed or overloaded
motors and machines
before damage occurs
Detects under-speed conditions in conveyor lines, machine tools,
ventilating systems, or any other rotating shaft where a minimum speed
requirement exists. Typically, a “flat”, keyway, or bolt-head, is detected,
precisely timed, and compared during each revolution to a set-point
adjustment made at “minimum” speed. Any drop in speed immediately
produces an output which may be used for emergency stop or other
control function. The Motion Detectors operate as AC or DC switches
and are available with high- and low-speed ranges.
■ Economical protection of equipment – can easily pay for itself
■ Detects under-speed in one shaft revolution
■ Self-contained tubular design is easy to install and adjust
■ AC or DC operation within same model
■ Power-up delay timer bypasses control during start up
■ High- and low-range types for 6 to 3000 RPM operation
■ Accurate and repeatable to 5% of nominal speed
■ Reliable operation over wide temperature range
■ 25 turn potentiometer and LED indicator simplifies precise
set-point adjustment
Use of these protective devices in many applications throughout a plant
can save many times their cost in reduced downtime and equipment
repairs.
SPECIFICATIONS
Electrical Characteristics:
Operating Voltage Range: 20-264 AC/DC
Operating Line Frequency (Hz): DC: 0; AC: 45-65
On-State Voltage Drop (volts): 5.7 Max.
Load Current:
Maximum Continuous (mA): DC: 200; AC: 350
Minimum Continuous (mA): 5
Inrush (A): 2
Leakage Current (mA): 1.5
Output State: Speed above set-point: Closed, below set-point: Open
Termination: 2-wire cable, 20 AWG, PVC Jacket, 2 meters long
Operating Characteristics:
Nominal Sensing Distance (mm): 0 to 8
Power-Up Time Delay (seconds): 9, fixed
Adjustable Frequency Range (set-point):
109888-0001: 6 to 150 pulses-per-minute
109888-0002: 120 to 3000 pulses-per-minute
Maximum Operating Frequency:
109888-0001: 6000 pulses-per-minute
109888-0002: 48,000 pulses-per-minute
Hysteresis (% of nominal): 5 to 15
Repeatability (% of nominal): 3
Operating Temperature Range: -13° to +158°F (-25° to +70°C)
Enclosure Ratings: NEMA type: 1, 3, 4, 6, 12, 13, 13; CENELEC type: IP67
Enclosure Material: Nickel-plated brass
Application:
25 Turn
Potentiometer
Adjustment
Model No.
109888-0001
109888-0002
Dimensions:
Motor
Control
Circuit
Adjustable
Speed
Detection
Range
(Targets/Minute)
6-150 (0.1-2.5 Hz)
120-3000 (2-50 Hz)
1.42"
36mm
Setpoint adjustment: A 25 turn
potentiometer is used to set the speed
threshold (pulses per minute) to the
normal operating speed. The output
circuit will remain closed unless the
speed falls below the setpoint at which
time it will open. At power up, a 9 second
delay overrides under-speed detection to
allow the equipment to reach normal
operating speed.
abc
4 - 6 30 x 30 60
All Dimensions in mm
A single or multiple targets may be used (even
numbers are recommended to maintain
mechanical balance). The more targets, the
faster the response to an underspeed condition.
The number of targets is limited by the maximum
operating frequency stated in Specifications.
Operating
Voltage
Range
20-264 VAC/DC
20-264 VAC/DC
M30 x 1.5
O.D. 1.18"
Power-Up
Time
Delay
(Seconds)
9 ±20%
9 ±20%
2.24"
57mm
Program-
mable
Controller
Compatible
Yes
Yes
LED
Yes
Yes
.94"
24mm
Output
Func.
N.O.
N.O.
Max.
Sens.
Dist.
(mm)
8
8
T
O
T
A
L
Z
N
G
11
P
R
O
X
I
M
I
I
T
Y
I
A
N
D
P
R
E
C
I
S
I
O
N
S
W
I
T
C
H
E
S
DANAHER INDUSTRIAL CONTROLS
11.11