Mitsubishi Electric FR-XC-11K, Instruction Manual

Page: 88 / 186

Parameter details
PARAMETERS
87
3
3.5.3
Input terminal function selection (Pr.3, Pr.4, and
Pr.7)
 Input terminal function assignment
• Use Pr.3, Pr.4, and Pr.7 to assign the functions of the input terminals. Refer to the following table to set the parameters.
NOTE
• One function can be assigned to the different terminals. In this case, the logic of terminal input is OR.
• When the terminal assignment is changed by changing the initial setting of
Pr.3, Pr.4, and Pr.7 (Input terminal function
selection) , it may cause improper wiring due to a mismatch between the terminal name and the signal name or affect other
functions. Set parameters after confirming the function of each terminal.
Use the following parameters to select or change the input terminal functions.
Pr. Name Initial value (signal name) Setting range
3
LOH terminal function
selection
5 LOH (Box-type reactor overheat protection)
0, 3 to 5, 9999
4
SOF terminal function
selection
0 SOF (Converter stop)
7
RES terminal function
selection
3 RES (Converter reset)
Setting
Signal
name
Function
Related
parameter
0 SOF Converter stop
When this signal turns ON, the converter operation stops.
The converter operation for this signal can be changed by using
Pr.8 .
Pr.8
3 RES Converter reset When this signal turns ON, the converter reset is performed. —
4 OH
External thermal
relay input
The signal is input from the external thermal relay. When this signal turns ON,
the fault E.H occurs and the converter output is shut off.
The converter operation for this signal can be changed by using
Pr.9 .
Pr.9
5 LOH
Box-type reactor
overheat protection
The signal is input from the box-type reactor. If the converter with harmonic
suppression function enabled starts operation while the LOH signal is not
assigned to any of the input terminals or if the cooling fan in the box-type
reactor connected the converter stops due to a failure or reduces speed, the
fault E.FT1 occurs and the converter output is shut off. If the LOH signal is input
to the converter with harmonic suppression function disabled, the fault E.FT1
occurs and the converter output is shut off.
—
9999 — No function —