3
Programming the Controller
39
EN-RaychemHWATECOcontroller-IM-H57340 03/13
TABLE 5: BMS VOLTAGE INPUT
Temp °F (°C) HWAT-Y2
HWAT-R2
U-BMS/U-GLT
(VOLT)
>147 (>64)
X
>6.4
147 (64)
X
6.4
140 (60)
X
6
131 (55)
X
X
5.5
122 (50)
X
X
5
113 (45)
X
X
4.5
106 (41)
X
X
4.1
Off
X
X
0
7. Network Master
In large installations where more than one HWAT-
ECO controllers are connected to each other, you
must select one controller as the Master. This con-
troller should be fully programmed and all slave
controllers will use the Master settings.
The master controller sends commands to all slave
controllers to switch them ON or OFF. The master
program is used for all controllers as follows: Slave
controllers on the same phase (max. three control-
lers) will have a delayed ON and OFF. This way the
start-up current of the cable will never occur at the
same moment for these controllers (A, B and C).
Slave controllers connected to a different phase will
switch at the same time (1, 2 and 3).
