Hitachi SAMURAI Series Service Manual page 29

2. Control Functions
Control functions on the module
c. Time chart
Maximum current
limitation value
d. Wiring method
Control board of the chiller unit
154
2 0V 3
N O T E
• When using the function to control the number of units (however excluding the connection to group controller), arrange
the wiring to unit no.1 (master unit). This function becomes enabled in all the units when inputting the signal to unit
no.1 (setting value is also common with the setting value of unit no.1), Signal input to chiller units with address settings
between unit no.2 and 8 are invalid.
• In case of connection to a group controller, the valid enabling and setting value orders are those sent from the group
controller. Signal input to the main unit of the chiller unit and its setting values are invalid.
22
SMGB0097 rev.0 - 07/2015
Control setting value
for overcurrent
protection
Setting value of
current limitation
ON
External signal X
B
OFF
155
SW8
Power
Maximum current
source of
limitation switch
the local
control
board
SW8