3.6 Other
functions
3-13
Functions
z
Active power alarm output
PMU1A
(Electric
power)
PMU2A
(Power
two-system)
EMU8A
(Pulse/temperature)
CTD8E
(CT
expansion)
{
×
: With two-system alarm
O: With alarm X: Without alarm
• This function is available when output terminal function setting is selected as an alarm
after the setting of alarm parameter setting and alarm output setting.
• Active power upper limit alarm threshold : -120000000 to 120000000 W (Initial value:
1000 W)
• Active power upper limit alarm hysteresis : 0 to 24000000 W (Initial value: 100 W)
• Active power upper limit alarm on-delay
: 0.5 to 10.0 s (Initial value: 0.5 s)
• Active power lower limit alarm threshold : -120000000 to 120000000 W (Initial value:
300 W)
• Active power lower limit alarm hysteresis : 0 to 24000000 W (Initial value: 100 W)
• Active power lower limit alarm on-delay
: 0.5 to 10.0 s (Initial value: 0.5 s)
*1. Setting a negative value can output an alarm against regenerated power.
*2. CTD8E (CT expansion) can perform the two-system measurement only when it is
connected to PMU2A (power two-system).
z
Over current alarm output
PMU1A
(Electric
power)
PMU2A
(Power
two-system)
EMU8A
(Pulse/temperature)
CTD8E
(CT
expansion)
{
×
: With two-system alarm
O: With alarm X: Without alarm
• This function is available when output terminal function setting is selected as an alarm
after the setting of alarm parameter setting and alarm output setting.
• Alarm judgment implements the OR operation in phases (when the value of a phase
exceeds the over current alarm threshold). In addition, release of an alarm implements the
AND operation (when the values of all phases are lower than over current alarm threshold
and current alarm hysteresis).
• Over current alarm threshold
:
0.0 to 6000.0 A
(Initial value: 100.0 A)
• Over current alarm hysteresis :
0.0 to 1000.0 A
(Initial value: 5.0 A)
• Over current alarm on-delay
:
0.1 to 10.0 s
(Initial value: 0.1 s)
* CTD8E (CT expansion) can perform the two-system measurement only when it is
connected to PMU2A (power two-system).
z
Under current alarm output
PMU1A
(Electric
power)
PMU2A
(Power
two-system)
EMU8A
(Pulse/temperature)
CTD8E
(CT
expansion)
{
×
: With two-system alarm
O: With alarm X: Without alarm
• This function is available when output terminal function setting is selected as an alarm
after the setting of alarm parameter setting and alarm output setting.
• Alarm judgment implements the OR operation in phases (when the value of a phase is
lower than the under current alarm threshold). In addition, release of an alarm implements
the AND operation (when the values of all phases exceed under current alarm threshold
and current alarm hysteresis).
• Under current alarm threshold
:
0.0 to 6000.0 A
(Initial value: 10.0 A)
• Under current alarm hysteresis
:
0.0 to 1000.0 A
(Initial value: 5.0 A)
• Under current alarm on-delay
:
0.1 to 10.0 s
(Initial value: 0.1 s)
* CTD8E (CT expansion) can perform the two-system measurement only when it is
connected to PMU2A (power two-system).
