Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 394 / 727

(T) Multi-Function Input Terminal Parameters
PARAMETERS
393
5
GROUP
T
5.12.1
Analog input selection
 Analog input specification selection
• Concerning the terminals 2 and 4 used for analog input, the voltage input (0 to 5 V, 0 to 10 V) and current input (0 to 20 mA)
are selectable. To change the input specification, change the parameters (Pr.73, Pr.267) and voltage/current input switch
settings (switches 1, 2).
• Change the setting of the voltage/current input selection switch to change the rated specification of terminal 2 or 4.
• Correctly set
Pr.73, Pr.267 and voltage/current input switch settings so that the analog signal appropriate for the settings is
input. The incorrect settings shown in the table below cause a failure. Other incorrect settings result in an incorrect
operation.
NOTE
• Check the voltage/current input switch number indication before setting, because it is different from the FR-A700 series
switch number indication.
The functions to switch the analog input terminal specifications, override function, forward/reverse rotation by the input
signal polarity are selectable.
Pr. Name Initial value
Setting
range
Description
73
T000
Analog input selection
1
0 to 5, 10
to 15 Switch 1 - OFF
(initial status)
The terminal 2 input specification (0 to 5
V, 0 to 10 V, 0 to 20 mA) and terminal 1
input specification (0 to ±5 V, 0 to ±10
V) are selectable.
Also the override and reversible
operation settings are selectable.
6, 7, 16, 17 Switch 1 - ON
267
T001 Terminal 4 input
selection
0
0
Switch 2 - ON
(initial status)
Terminal 4 input, 4 to 20 mA
1
Switch 2 - OFF
Terminal 4 input, 0 to 5 V
2 Terminal 4 input, 0 to 10 V
Switch 1: Terminal 2 input
ON: Current input
OFF: Voltage input (initial status)
Switch 2: Terminal 4 input
ON: Current input (initial status)
OFF: Voltage input
Switch state Input specification
Input
terminal
Rated specification
Switch 1
ON Current input
Terminal 2
For voltage input, the input resistance is 10±1 k Ω and the
maximum permissible voltage is 20 VDC.
For current input, the input resistance is 245±5
Ω and the
maximum permissible current is 30 mA.
OFF Voltage input (initial status)
Switch 2
ON Current input (initial status)
Terminal 4
OFF Voltage input
Setting causing a failure
Operation
Switch setting
Terminal
input
ON (current input) Voltage input
Causes an analog signal output circuit failure in an external device
(due to increased loads on the signal output circuit of the external device).
OFF (voltage input) Current input
Causes an input circuit failure in the inverter
(due to an increased output power in the analog signal output circuit of an external device).
Voltage/current
input switch
2 4
Switch 1
Switch 2