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Safe monitoring of underspeed
The speed monitor of the DU series has been developed for safety-related minimum speed monitoring. It receives the pulses from the sensors connected on the inputs as pulse pick-ups and calculates the frequency. By continuously comparing the input frequency (actual value) and the switch point (preset value), the unit promptly detects underspeed. The minimum speed is easily set via rotary switches. In addition to the safety relays, transistor outputs are available for status and error indication. The monitors are widely used on fans of industrial furnaces or paint shops in the automotive industry.
Features & Benefits
- Easy parameter setting via rotary switch
- Use of a large variety of cam discs
- Monitoring functions can be switched on and off
- Reliable operation at extreme ambient temperatures down to -40 °C
- Slim housing
Additional Notes
| MPN | Product designation | Dimensions | Operating voltage DC | Electrical design | Protection |
|---|---|---|---|---|---|
| DU110S | Safe speed monitor for underspeed detection | 108 x 22.5 x 114.5 mm | IP 20 |
Alternate configurations
| SKU | Description | List price | - |
|---|---|---|---|
| IFM-030040010 | Safety Sensors - Relays - Safety relays for fail-safe sensors / E-STOP switchgear | $0.01 | |
| IFM-030040020 | Safety Sensors - Relays - Safety relays with muting function | $0.01 | |
| IFM-030040030 | Safety Sensors - Relays - Safety relays for safe standstill monitoring | $0.01 | |
| IFM-030040040 | Safety Sensors - Relays - Safety relays for safe speed monitoring | $0.01 |
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