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Compact evaluation unit for speed monitoring


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  • For applications in hazardous areas
  • Reliable non-contact monitoring of the rotational speed with regard to underspeed
  • 2 in 1: speed sensor and evaluation in one compact housing
  • Easy setting of the switch point via potentiometer
  • With IO-Link for transmission of signals and diagnostic data
  • ce
  • iolink
Technische Details
Product characteristics
Electrical design PNP/NPN
Output function normally open / normally closed; (parameterisable)
Sensing range [mm] 10
Communication interface IO-Link
Dimensions [mm] M30 x 1.5 / L = 80
Application simple evaluation of rotating and linear movement with regard to underspeed; blocking
Electrical data
Nominal voltage DC [V] 10...36
Current consumption [mA] < 22
Protection class III
Reverse polarity protection yes
Electrical design PNP/NPN
Output function normally open / normally closed; (parameterisable)
Max. voltage drop switching output DC [V] 2.5
Permanent current rating of switching output DC [mA] 250
Short-time current rating of switching output [mA] 250
Short-circuit proof yes
Overload protection yes
Detection zone
Sensing range [mm] 10
Sensing range adjustable no
Real sensing range Sr [mm] 10 ± 10 %
Operating distance [mm] 0...8.1
Measuring/setting range
Setting range [Imp/min] 5...3600
Accuracy / deviations
Correction factor steel: 1 / stainless steel: 0.7 / brass: 0.5 / aluminium: 0.4 / copper: 0.3
Hysteresis [% of Sr] 10
Response times
Start-up delay [s] 0...30
Max. damping frequency [Imp/min] 18000
Software / programming
Adjustment of the switch point Multiturn potentiometer or IO-Link
Communication interface IO-Link
Operating conditions
Ambient temperature [°C] -20...60
Storage temperature [°C] -25...60
Protection IP 65; IP 67
Tests / approvals
Approval IECEx BVS 17.0094X
ATEX marking II 3D Ex tc IIIC T80°C Dc X
EN 60947-5-2
MTTF [years] 656
Mechanical data
Weight [g] 320
Mounting flush mountable
Dimensions [mm] M30 x 1.5 / L = 80
Thread designation M30 x 1.5
Materials brass special coating; PA; TPE-U
Displays / operating elements
switching status 1 x LED, green
input signal 1 x LED, yellow
Accessories (supplied)
lock nuts: 2
Recommendation Check the safe functioning of the unit after a short circuit.
Electrical connection
Connection Cable: 2 m, PUR; 3 x 0.5 mm²
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — EN-GB — DI523A — 15.03.2017 —