Daikin LX10F11B3 User Manual

2-35
022
E425
（USDA1）
・ E427
（USDA2）
E429
（USDA3）
・ E433
（CTS）
Alarm
Logic
When USDA sensor type "2" is set on ※12 Configuration set in paragraph 2.3
≦-39℃ (320kΩ)
USDA sensor / CTS or
≧96℃ (0.79kΩ)
Note: The alarm is activated when sensor or the circuit is disconnected (open) or short-circuited.
Possible
Causes
1. Incorrect setting (Setting number of USDA sensor is not match)
2. Circuit <line> malfunction
Connector disconnected / open wire / short circuit / USDA receptacle failure
3. USDA sensor failure
* Controller failure
Trouble
Shooting
Step 1. If USDA is set to "3" or "4" in ＊2 mode setting of paragraph 2.3, check whether all of
three or four sensors are connected.
Step 2. Check whether cable or receptacle between X6A and USDA receptacle is open or
short-circuited.
After make jumper between pins AB on USDA/CTS receptacle, check the continuity
on socket X6A (CPU board).
USDA1
USDA2
USDA3
CTS
X6A
（CPU board）
Sensor receptacle
(inside container)
7
5
3
1
8
6
4
2
Continuity check (Connector X6A）
Repair or replace if there is disconnection or short circuit.
Step 3. Check the resistance value for each sensor of USDA and CTS sensor
USDA1
USDA2
USDA3
CTS
Replace sensor, if does not matches the resistance and USDA sensor
characteristic table.
Caution:
Regarding USDA sensor, type "1" and "2" have different characteristics.
Identify the type by referring ＊4 Configuration Information in paragraph
2.3 (configuration setting information).
Step 4. If the sensor is normal, replace the controller.
Controller
Action
E425 Alarm display only
E427 Alarm display only
E429 Alarm display only
E433 Alarm display only
02章19-44LX10F11B3TR16-02En.indd2-3502章19-44LX10F11B3TR16-02En.indd2-35 2016/02/0217:17:402016/02/0217:17:40
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Daikin LX10F11B3 Specifications

General

Brand	Daikin
Model	LX10F11B3
Category	Inverter
Language	English