Справочник Пользователя для Mitsubishi Electronics FR-A500

111

You can select between write-enable and disable for parameters. This function is used to prevent parameter
values from being rewritten by accident.

77

0

0, 1, 2

0

Write enabled during a stop only.
Parameter values may only be written during a stop in the PU operation mode. (Note 1)

1

Write disabled.
Values of Pr. 22, Pr. 75, Pr. 77 and Pr. 79 "operation mode selection" can be written.

2

Write enabled even during operation.

Note: 1. The values of the shaded parameters in the parameter list can be set at any time. (Refer to page

.

)

(Pr. 72 and Pr. 240 values cannot be set during external operation.)

2. If Pr. 77 = "2", the values of the following parameters cannot be written during operation. Stop

operation when changing their parameter settings.

23

Stall prevention operation level 
compensation factor at double speed

107

V/F4 (fourth frequency voltage)

48

Second stall prevention operation 
current

108

V/F5 (fifth frequency)

49

Second stall prevention operation 
frequency

109

V/F5 (fifth frequency voltage)

60

Intelligent mode selection

135

Commercial power supply-inverter 
switch-over sequence output 
terminal selection

61

Reference current

136

MC switch-over interlock time

66

Stall prevention operation reduction 
starting frequency

137

Start waiting time

71

Applied motor

138

Commercial power supply-inverter 
switch-over selection at alarm 
occurrenc

79

Operation mode selection

139

Automatic inverter-commercial 
power supply switch-over frequency

80

Motor capacity

180

RL terminal function selection

81

Number of motor poles

181

RM terminal function selection

83

Rated motor voltage

182

RH terminal function selection

84

Rated motor frequency

183

RT terminal function selection

95

Advanced mode selection

184

AU terminal function selection

96

Auto tuning setting/status

185

JOG terminal function selection

100

V/F1 (first frequency)

186

CS terminal function selection

101

V/F1 (first frequency voltage)

190

RUN terminal function selection

102

V/F2 (second frequency)

191

SU terminal function selection

103

V/F2 (second frequency voltage)

192

IPF terminal function selection

104

V/F3 (third frequency)

193

OL terminal function selection

105

V/F3 (third frequency voltage)

194

FU terminal function selection

106

V/F4 (fourth frequency)

195

A, B, C terminal function selection

3. By setting "1" in Pr. 77, the following clear operations can be inhibited:

•Parameter clear
•All clear
•User clear

Pr. 79 "operation mode selection"

Related parameters