4.6.3.5. P5:
Power
input
Pin connection
Signal name
Rating / connection
9 & 12kW
22kW
A1 A1
L1
A2 B1
L2
A3 C1
L3
Frame Frame
PE
Mains supply input, for ratings see
Table 6
L1-L3 connections NOT SELV
B1 F1
B2 F2
B3 F3
Auxiliary_n/o
B4 F4
Auxiliary_n/o_rtn
‘Volt free’ auxiliary n/o contact
output. Contact rating 5A @
24Vdc / 120Vac
B5 F5
Auxiliary_n/c
B6 F6
Auxiliary_n/c_rtn
‘Volt free’ auxiliary n/c contact
output. Contact rating 5A @
24Vdc / 120Vac
B7 F7
Chiller_OK
B8 F8
Chiller_OK_rtn
‘Volt free’ contact input from chiller
4.6.3.6. Protective Earth terminal
An M6 stud is provided on the rear of the
e-Brick
housing to permit Protective Earth (PE)
bonding during installation. Note that the mains supply earth is through P5.
4.6.3.7. P6:
Communication port (in)
P6: HMI (Master)
Pin connection
Signal name (Master)
Rating / connection
1
24V
24V output to HMI
2
0V
0V output to HMI
3 RS485A RS485
bus
4 RS485B RS485
bus
5 KEY
No
connection
6 5V_control
No
connection
7 N/C
No
connection
8 RS485_rtn
RS485
Screen
P6: Communications port (Slave, in)
Pin connection
Signal name (Slave)
Rating / connection
1
RS485A
RS485 bus || P2-1
2
RS485B
RS485 bus || P2-2
3 E-stop
4 E-stop_rtn
‘Volt free’ contact input from E-stop
output on previous master / slave
e-
Brick
.
5 N/C
No
connection
6 N/C
No
connection
7 N/C
No
connection
8 RS485_rtn
RS485
Screen
GEW UV
e-Brick
installation and operating manual
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