Model
MU-N12
Main unit/Expansion unit
Expansion unit
Response time
Depends on the connected sensor model*1
Expansion units
Up to 4 expansion units*2
I/O
Control output
4 max.,
NPN open collector/PNP open collector selectable,
24 V or less,
Main unit: 50 mA or less*3,
Expansion unit: 20 mA or less,
Residual voltage: 2 V or less,
N.O./N.C. selectable
*1*4
External input
5 max.,
Short-circuit current: NPN: 1 mA or less,
PNP: 2 mA or less,
For the applied voltage, see wiring diagrams
(page 3 of the instruction manual)
*1*4
Analog output
–
Protection circuit
Protection against reverse power connection,
power supply surge, output overcurrent,
output surge, and reverse output connection
Power supply
Power voltage
24 VDC, ripple (P-P) 10% or less, Class 2 or LPS
Current consumption
55 mA or less (without load)*5
Sensor
connection
specification
Allowable sensor current
150 mA or less
N-bus
connection
specification
Allowable passing
current
900 mA or less
Environmental resistance
Ambient temperature
-20 to +50 °C -4 to 122 °F (No freezing)
Relative humidity
35 to 85 % RH (No condensation)
Vibration resistance
10 to 55 Hz, Double amplitude 1.5 mm 0.06″, 2 hours in each of the X, Y, and Z directions
Shock resistance
1,000 m/s2, 6 times in each of the X, Y, and Z directions
Material
Case and dust cover: Polycarbonate
Buttons: Polyacetal
Display panel: PMMA
Weight
Approx. 70 g
*1 The response time, as well as the types and number of inputs and outputs that are available, vary depending on the connected sensor model.
For details, see the specific “MU-N Series User’s Manual” for the model that will be connected.
*2 Up to 5 N-bus devices, including the main unit (or network unit), can be linked together.
*3 20 mA or less: When using the expansion unit.
*4 For more information on Control output, External input, and Analog output wire allocation, please refer to the table of “Power Cable Pin Layout” on page 3 of this manual.
*5 1185 mA or less when a sensor is attached, 4 outputs (with loads) are used, and expansion units are connected.
