Yutaki Unit Pcb - Hitachi YUTAKI Series Service Manual

4.24. yUTAKI UnIT PCB

• PCB drawing
The PCB in the Yutaki unit operates with nine DIP switches, six LEDs and two rotary switches. The location is as follows:
DSW1
DSW2
DSW3
DSW4
DSW5
DSW6
DSW7
DSW8
DSW9
RSW1 & RSW2
RSW3 & RSW4
SSW
JP2
SMGB0066 rev.0 - 12/2009
144

Yutaki unit PCB

Switch indication
Optional functions
Unit control configuration / Unit HP
Unit control configuration
Unit model configuration
Not used
End resistance / Fuse recovery
Unit control configuration
Setting Pd Pressure Sensor Type
Setting Ps Pressure Sensor Type
rotatory switch
Heating setting temperature
Not used
UP="+ Temp." / DOWN="-Temp."
Jumper setting
Cut ⇒ Re-Start after power failure
lEd indication
LED 1
LED 2
LED 3
LED 4 Operation status indication
LED 5
LED 6
1. Status indication.
Press the PSW2 more than three seconds to change the
status display mode.
2. Alarm history
Press the PSW1 and PSW2 together more than three
seconds to switch to alarm history mode.

- The mark " " indicates position of dips switches. Figures show
setting before shipment or after selection.
- Not mark " " indicates pin position is not affecting.

- Before setting dips switches, firstly turn off power source and
set the position of the dips switches. If the switches are set
without turning off the power source, the contents of the setting
are invalid.
Segment
SEG1 / SEG2
Discharge and Suction pressure value
SEG3, SEG4, SEG5
Controller pack
Service Manual
function
Power supply indication
Alarm indication
Setting mode indication
note
note
Indication
Unit Status
alternatively