UE 2W2D, Инструкция по установке и обслуживанию, Страница: 11 / 16

IM_ONE-01
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ACCEPTABLE SUPPLY VOLTAGES AND LOADS FOR 2W MODELS
The charts below provide a range of acceptable power supply voltages (in Volts) and series loads (in Ohms). This is useful when the One Series 2-Wire is con-
nected to non-standard PLC and DCS inputs or is connected in series with a relay or solenoid coil. For the 2W2D models a maximum of 30 VDC supply voltage
and a load of 40 mA must not be exceeded. For the 2W3A models a maximum of 130 VAC/VDC supply voltage and a load of 100 mA must not be exceeded.
Permanent damage to the One Series 2-Wire electronics may result if the supply voltages are exceeded.
NOTE: If you need assistance with determining the compatibility of the One Series 2-Wire with your PLC, DCS, or relay, we can help. Please have the manufacturer's
model number ready when you call us. In rare cases, when the series resistor value is too large and falls out of the Acceptable Range, placing another resistor
across the input will allow it to work. Please call (617) 926-1000 (Technical Sales) for assistance.
Please note that a maximum of 30 VDC supply voltage and a load
of 40 mA must not be exceeded or permanent damage to the One
Series 2-Wire electronics may result.
Please note that a maximum of 130 VAC/VDC supply voltage and a
load of 100 mA must not be exceeded or permanent damage to the
One Series 2-Wire electronics may result.
2WLP
0
200
400
600
800
1000
1200
10 12 14 16 18 20 22 24 26 28 30 32 34 36
Vin
Oh
m
s
Please note that Model 2WLP obtains loop-power from a 4-20 mA
input. The chart at left shows the maximum load resistance allowed
at various voltages. Typically, this resistance is provided internally
by the PLC or DCS. No external resistor is required.