EBARA EV-SA20 - Page 41

P.40
PM10U
EBARA
CORPORATION
When any ALARM occurs the pump will be stopped and the ALM lamp will immediately turn on or
blink. The data screen will be changed to the ALARM display shown in Table 4.4.
The pump cannot be restarted until the pump meets the requirement for recovery.
Table 4.4 ALARM list
[note 1]
[note 1] The ALARM is described in this list are typical alarm. If the alarm other than these is
displayed, please contact EBARA.
[note 2] Under Over-Voltage (OV) condition the inverter retries automatically. After several times
retry the condition is still bad, the data screen will display as Table 4.3 and pump will be
stopped.
ALM lamp and “
” display on the data screen are blinking for OV retry process.
[note 3] Under-Voltage (UV) condition is kept for less than 1sec, the inverter condition is returned to
before UV ALARM occurred.
ALM lamp and “
” display on the data screen are blinking for UV condition.
No. Display ALM lamp Description Requirements for recovery
1
Lit
“Over-Current”
Inverter output current is too large.
Normalized + Reset signal input.
2
Lit
“Over-voltage”
Inverter inner voltage is too high.
Normalized + Reset signal input.
[note 2]
3
Lit
“Under-voltage”
Inverter inner voltage is insufficient.
Normalized + Reset signal input.
[note 3]
4
Lit Inverter control powers are in trouble. Normalized + Reset signal input.
5
Lit Motor step out. Reset signal input.
6
Lit Inverter is overheated. Normalized + Reset signal input.
7
Lit
“Over-Load”
Pump load is too large.
Normalized + Reset signal input.
8
Lit
“Over-Load”
Pump load is too large.
Normalized + Reset signal input.
9
Lit “Motor Overheat” Normalized + Reset signal input.