Table of Contents
Advertisement
3. Numerical display function
By switching the position of the indicator select
switch, following items can be displayed on the
numerical display LED.
①Voltage measurement
The display shows the value of input voltage. The
display range is from 55V to 130V.
(If input voltage is less than 55V, the display
goes out. If input voltage is more than 130V, the
error message Ｏ.Ｆ. is displayed.)
②Pickup
When input voltage is less than setting value,
Ｕ. is displayed.
This function can be used for operation value
tests.
③Setting value
It displays the setting condition of the relay
including operation value, operating time, and
frequency.
4. Fault record function
①Display of fault records
When a fault occurs, the relay outputs the
operating signal, and at the same time the input
voltage value is recorded. When the indicator
select switch is set to the position of fault
Internal connection diagram
P1
Level
assessment
P2
Power supply
Continuous
monitoring
Power circuit
monitoring
record, the records are displayed starting from
the
approximately 2 second intervals. The relay can
save the newest five phenomena.
The records are saved in the non-volatile memory,
therefore the records can be read again after
shutting the power off.
②Clearing of fault records
Set indicator select switch to "CLEAR FAULT REC."
and hold for 5s or more, then Ｏ.Ｋ. is displayed
and all of the fault record are cleared.
5. Display function of setting change
When a setting is changed, the setting value after
changing is displayed for approx. 3s preferentially.
6. Detection function of frequency difference
If there is a difference between setting frequency
and injected frequency, the alert message Ｆ.Ｅ.
is displayed.
The detection is executed one second after the
relay is activated or the frequency setting is
changed.
If the alert message Ｆ.Ｅ. is displayed, please
check the frequency setting switch.
When the undervoltage element operates, the state of the
output contacts (X0, X1) are as follows:
b contact (c1～b1, c2～b2): ON (close)
a contact (c1～a1, c2～a2): OFF (open)
Operation
Output contact
indicator
X0
c1
RUN indicator
When the operating voltage setting switch is set to the
b1
Output
X0
contact
LOCK, the b contacts open when RUN LED is turned on. If
a1
input voltage is turned to zero from this state, the b
X1 Output
X1
c2
contact
contacts remain open.
b2
a2
Factory settings of b contacts (c1～b1, c2～b2) are set
Output contact
to ON (close) state, however, shock during transportation
may turn the contacts to OFF (open) state.
Therefore, please check conduction state of the contacts
before use.
Fig. 4-2 Internal connection diagram
9
latest
record
to
the
oldest
one
at
JEP0-IL9556
Advertisement
Table of Contents
