| Brand | DOLD |
|---|---|
| Housing width | 22.5 mm |
| Output contacts | 2 C/O contacts |
| Enclosure design | Switch cabinet |
| Order number | 0058715 |
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DOLD MK 9055N – Speed Monitor
- Brand
- DOLD
- Part number
- MK 9055N
- Order number
- 0058715
Speed Monitor
- Protection of machines and products
- Easy setting
- Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
- With fast reaction at low speed
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The speed monitors MK 9055N and MH 9055 monitors the rotational speed of motors. They recognise and monitor impulse signals of e. g. proximity sensors and protect machines and produced material or allows speed depending switching in production processes.
Features
- According to IEC/EN 60255-1
- Detection of high or low-rpm / stand still (adjustable function)
- Large setting range 1 … 120.000 IPM or 0.15 … 20.000 Hz (10 ranges each)
- As option with input for NAMUR-sensors with sensor and wire protection against interruption and short circuit
- Adjustable hysteresis 0.5 … 50 %
- Adjustable start up time delay 0 … 50 s, control with external contact
- Adjustable monitoring time for missing input signal at function overfrequency; additional using as standstill level
- Programmable via termminals:- Alarm delay of 0 … 100 s- with manual reset or auto reset
- LED-indication for auxiliary voltage, measuring input and output relay; additional LED for indication of wire- / sensor failure at NAMUR-input
- Auxiliary voltages AC 230 V and DC 24 V in one unit
- 2 changeover contacts, closed circuit operation
- Open circuit operation on request
- As option with analogue output, proportionally to speed
- Device available with 2 response values and seperately controlled output relays for under- and overfrequency see MK 9055N/5_ _
- MH 9055 with wide input range for auxiliary voltage (AC/DC 24 …60 V or AC/DC 110 …230 V)
- 2 possible compact designsMK 9055N: Width 22,5 mmMH 9055: Width 45 mm
Technical specifications
| Auxiliary voltage | AC, DC |
|---|---|
| Classification | Drehzahlüberwachung |
| Enclosure design | Switch cabinet |
| Measuring range max. | 120000 IPM |
| Output contacts | 2 C/O contacts |
| Width | 22,5 mm |
| Type | MK 9055N |
Available variants
| Auxiliary voltage | AC 230 V + DC 24 V |
|---|---|
| Contact equipping | 2 changeover contacts |
| Response value | 0,15 – 20000 Hz · 1 – 120000 IPM |
| Terminal type | pluggable terminal blocks with cage clamp terminals · pluggable terminal blocks with screw terminals · screw terminals fixed |
| Approvals and Markings | UKCA |
| Variant | Input for NAMUR-sensors. Analogue output 4 … 20 mA (instead of terminal X3) · Input for NAMUR sensors · Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage). Analogue output 0 … 10 V (instead of terminal X3) · Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage). Analogue output 0 … 20 mA (instead of terminal X3) · Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage). Start up delay adjustable logarithmically |
Tell us the variant you need in your quote request.







