Mitsubishi Electric MELSERVO-J5 Series User Manual page 300

Setting method [A]
■200 V class servo amplifiers with a capacity of 2.0 kW or less
When [Pr. PC27.4 Input open-phase detection selection] is set to "0" (automatic), the input open-phase detection function is
disabled.
The input open-phase detection function is enabled by setting [Pr. PC27.4] to "1" (warning enabled) or "2" (alarm enabled). If
"1" (warning enabled) is set, [AL. 1E9 Open-phase warning] will be outputted when the input open phase occurs. To generate
[AL. 139 Open-phase error] when an open phase occurs, set [Pr. PC27.4] to "2" (alarm enabled).
■200 V class servo amplifiers with a capacity of more than 2.0 kW
When [Pr. PC27.4 Input open-phase detection selection] is set to "0" (automatic), the input open-phase detection function is
enabled. If "0" (automatic) is set, [AL. 1E9 Open-phase warning] is outputted when the input open phase occurs. To generate
[AL. 139 Open-phase error] when an open phase occurs, set [Pr. PC27.4] to "2" (alarm enabled).
■400 V class 1-axis servo amplifiers
When [Pr. PC27.4 Input open-phase detection selection] is set to "0" (automatic), the input open-phase detection function is
enabled. If "0" (automatic) is set, [AL. 1E9 Open-phase warning] will output when an input open phase occurs. To set [AL. 139
Open-phase error] to be triggered by an open phase, set [Pr. PC27.4 Input open-phase detection selection] to "2" (alarm
enabled).
Servo Symbol
parameter
PC27.4 *COP6
4 APPLICABLE FUNCTIONS
298
4.18 Disconnection/incorrect wiring detection function
Name
Input open-phase detection
selection
Outline
Enable or disable the detection of input open-phase detection function.
0: Automatic (initial value)
1: Warning enabled
2: Alarm enabled
3: Disabled