Daikin ECORICH EHU2504 - 12.6 Settings Relating to Warnings;Alarms

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56
PIM00504
12.6 Settings Relating to Warnings/Alarms
12.6.1 Setting judgment criteria for [E64: Dry running error]
Pressure rise faults resulting from inclusion of air due to a drop in the oil level, or from a drop in viscosity
due to inclusion of water, are detected and the unit is stopped by the “E64: Dry running error” alarm to
prevent damage to the pump. When the pressure and flow rate remain in the dry running area in the
figure below for the time set for “P36: Dry running judgment time”, “E64: Dry running error” is detected.
圧力
0
回転数
ドライ運転エリア
ドライ運転判定圧力 ※
◆ドライ運転検出エリア
5000
* The value set for “P35: Dry operation judgment pressure” is used as the dry operation judgment
pressure.
12.6.2 Setting related to [E66: Temperature error due to pressure holding rotation speed
drop]
Display Code Parameter Name Setting range Default value Unit
P46 TVMJ
Maintenance
implementation review
enable/disable
0: Maintenance implementation
review disabled,
1: Maintenance implementation
review enabled
0 -
An “E66: Temperature error due to pressure holding rotation speed drop” alarm occurs when either of the
following two conditions have been satisfied.
(1) The conditions for occurrence of the E41 alarm (Abnormal motor temperature rise) have been
established while an L67 warning (Holding pressure speed drop) is in effect.
(2) When 1 is set for parameter “P46: TVMJ Maintenance implementation enable/disable”, an E41
alarm (Abnormal motor temperature rise) occurs after an L67 warning (Holding pressure rotation
speed drop), and the L67 warning is detected again after turning the power OFF and back ON.
12.6.3 Setting related to [L49: Motor electronic thermal relay overload warning]
Display Code Parameter Name Setting range Default value Unit
P55 WN_L
Motor electronic thermal
relay overload warning
threshold value
101 - 109 105 %
When the motor current mean load factor reaches or exceeds the value set for WN_L, “L49: Motor
electronic thermal relay overload warning” is judged to have occurred.
 Dry running detection area
Motor speed
Dry operation area
Pressure
Dry operation judgment pressure*