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Product Information / Produktinformation A6312
Rotational Speed Monitor
1.6.5 Power supply
The system supply voltages with their grounds, the signal inputs and supervision inputs /
outputs are galvanically isolated from each other.
Supply voltage inputs
Voltage input UB+ / UN+
Common reference 0 V U−
Permissible voltage range
Power consumption
The monitor system voltages, and thus the 0 V / common connections for the measurement
and monitoring inputs and outputs, are galvanically separated.
Monitor system voltage
The module system voltages required for the internal supply are permanently checked on low
voltage. If "Low voltage" is detected, an error message will be given.
Sensor supply
For both channels of the module
Separation
Sensor supply channel 1
Sensor supply channel 2
Supply voltage
Residual ripple
Max. current
Max. short−circuit current
Two redundant, diode decoupled inputs for nominal
+24 V with common 0 V reference
d2 / z2
b2
19 ... 31.2Vdc (IEC 654−2 class DC 4)
CSA: 24Vdc; SELV LPS
Max. 6 W, at 24 V max. 250 mA
Decoupled and galvanically separated from the
supply voltage,
can be operated in parallel with other monitors, open
circuit and short circuit proof, non−reactive
Sup.Ch1+ / Sup.Ch1− b6/z6
Sup.Ch2+ / Sup.Ch2− b8/d6
26,75 V DC; Tolerance ±2
< 20 mVss (at nominal current 20 mA)
35 mA
0 mA ≤ I short−circuit ≤ 5 mA;
Open−circuit and short−circuit proof
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