Yokogawa Button Operated MV2000 - Manual (Page 281)

13-13
IM MV1000-01E
Spec
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ons
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App
Index
24 VDC Transmtter Power Supply (/TPS2 and /TPS4)
Item Specfcatons
Number of loops 2 (/TPS2), 4 (/TPS4)
Output voltage 22.8 to 25.2 VDC (under rated load current)
Rated output current 4 to 20 mADC
Maximum output current 25 mADC (overcurrent protection operation current: approx. 68 mADC)
Allowable conductor resistance RL ≤ (17.8 – minimum transmitter operation voltage)/0.02 A
where 17.8 V is the result obtained by subtracting the maximum drop voltage of 5 V,
when the load shunt resistance is 250 Ω, from the minimum output voltage of 22.8 V
Max. length of wiring 2 km (when using a CEV cable)
Insulation resistance 20 MΩ or more at 500 VDC between output terminal and ground
Dielectric strength 500 VAC (50/60 Hz, I = 10mA) for one minute between output terminal and ground
500 VAC (50/60 Hz, I = 10mA) for one minute between output terminals
Pulse Input (/PM1)
Item Specfcatons
Pulse input
Number of Inputs: 3 (8 when using the remote control input terminals)
Input type Isolated from the main circuitry through a photocoupler and built-in isolated power supply
for the input terminals.
Shared common for pulse inputs
Input type and signal level Voltage-free
contact
Contact closed at 200 Ω or less and contact open at 100 kΩ or
greater.
Open collector ON voltage: 0.5 V or less (sink current 30 mA or more), leakage
current when OFF: 0.25 mA or less
Counting Counts the rising edges of pulses.
For voltage-free contact input: Contact open to contact close
For open collector: The H terminal voltage level changing from high to low
Allowable input voltage 30 VDC
Max. sampling pulse period 100 Hz
Minimum detected pulse width 5 ms or more for both low (closed) and high (open)
Pulse detection period
Approx. 3.9 ms (256 Hz)
Pulse measuring accuracy ±1 pulse
Pulse count interval Scan interval or 1 s
Miscellaneous Pulse input terminals can be used as remote control input terminals, isolated from
remote control input terminals
Remote control Number of inputs: 5. Other items are the same as with remote control (/R1)
Remote control input terminals can be used as pulse input terminals.
Computation Function Same as the computation function (/M1)
Calbraton Correcton (/CC1)
Item Specfcatons
Calibration correction method Corrects the measured value of each channel using segment linearizer approximation
Number of segment points: 2 to 16 (including the start and end points)
External Input Channel Functon (/MC1)
Item Specfcatons
Function Loads data from other instruments by using the Modbus client or Modbus master
function and displays, records, and saves the data
Number of channels 240 channels (201 to 440)
Display Same as the measurement channels
Data saving Same as the measurement channels
Manual sampling Specify up to 120 channels from measurement, computation, and external input
channels.
13.5 Optons