Yaskawa 120 Series I/O Modules - Manual (Page 278)

6.4 Precautions on Wiring
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3) Grounding Shielded Cables
Connect the shield of the Shielded twisted-pair cable to the “Shield” terminal of the
Module. An improper connection will cause noise interference, which results in a
malfunction.
6.4.8 Analog Output Modules
1) Maximum Load Current (Voltage Output)
The maximum allowable load current for Analog Output Modules ( ±10V, 2 channels)
is ±5 mA (2 kΩ). The load resistance must be 2 kΩ or more.
Incorrect connection may cause the output signal to be overloaded, and result
in damages or malfunction of the Analog Output Module.
The maximum allowable load current for Analog Output Modules (0 to10V, 2
channels) is 5 mA (2 k
Ω). The load resistance must be 2 kΩ or more.
Incorrect connection may cause the output signal to be overloaded, and result
in damages or malfunction of the Analog Output Module.
The maximum allowable load current for Analog Output Modules (0 to 5V, 2 channels)
is 2.5 mA (2 k
Ω). The load resistance must be 2 kΩ or more.
Incorrect connection may cause the output signal to be overloaded, and result
in damages or malfunction of the Analog Output Module.
2) Maximum Load Resistance (Current Output)
The maximum allowable load resistance for Analog Output Modules (4 mA to 20 mA,
2 channels) is 550 k
Ω). The load resistance must be 550 kΩ or more.
Incorrect connection may cause the output signal to be overloaded, and result
in damages or malfunction of the Analog Output Module.
3) Analog Output Signal Wires
Use shielded twisted-pair cables for the analog output signal lines.
An improper connection will cause noise interference, which results in a malfunc-
tion.
4) Grounding Shielded Cables
As a rule, ground the shield of the shielded twisted-pair cable to one point on the
load side. Better output characteristics, however, may be obtained by connecting it
at one point on the Analog Output Module side, so ground according to the actual
situation.
An improper connection will cause noise interference, which results in a malfunc-
tion.
5) Unused Terminals of the Output Module
The “not connected” terminals inside the Analog Output Modules are not used, so
they can therefore be used as junction terminals.
CAUTION
CAUTION
CAUTION
CAUTION