Mitsubishi Electric F700 User Manual

103
Function assignment of external
terminal and control
4
PARAMETERS
4.10.2 Inverter output shutoff signal (MRS signal, Pr. 17)
The inverter output can be shut off from the MRS signal. The logic of the MRS signal can also be selected.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
17 MRS input selection 0
0 Open input always
2 Close input always (NC contact input specifications)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 156)
(1) Output shutoff signal (MRS signal)
⋅ Turning on the output shutoff signal (MRS) during inverter running
shuts off the output immediately.
⋅ Terminal MRS may be used as described below.
(a) When mechanical brake (e.g. electromagnetic brake) is used to
stop motor
The inverter output is shut off when the mechanical brake
operates.
(b) To provide interlock to disable operation by the inverter
With the MRS signal on, the inverter cannot be operated if the
start signal is entered into the inverter.
(c) Coast the motor to a stop.
When the start signal is turned off, the inverter decelerates the
motor to a stop in the preset deceleration time, but when the MRS
signal is turned on, the motor coasts to a stop.
(2) MRS signal logic inversion (Pr. 17)
⋅ When Pr. 17 is set to "2", the MRS signal (output stop) can be
changed to the normally closed (NC contact) input specification.
When the MRS signal turns on (opens), the inverter shuts off the
output.
REMARKS
⋅ The MRS signal is assigned to the terminal MRS in the initial setting. By setting "24" in any of Pr. 178 to Pr. 189 (input terminal
function selection), the RT signal can be assigned to the other terminal.
⋅ The MRS signal can shut off the output, independently of the PU, external or network operation mode.
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Please
make setting after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 101
ON
ON
MRS signal
STF (STR)
signal
Motor coasts
to stop
Time
(Initial
value)
Output
stop
Output
stop
MRS
Inverter
MRS
Inverter
Setting value "0"
Setting value "2"
SD SD

Mitsubishi Electric F700 Specifications

General

Brand	Mitsubishi Electric
Model	F700
Category	Inverter
Language	English