ABB ControlIT 53MC5000 - 110120 V Ac Power Source to Controller; Figure 2-17. 110120 V Ac Power Source to Controller; Table 2-5. 110120 V Ac Power Source to Controller

2.7.3 110/120 V AC POWER SOURCE TO CONTROLLER
The procedure to connect the controller TB2 screw lugs to a 110/120 V ac power source is pro-
vided in Table 2-5.
Table 2-5. 110/120 V ac Power Source to Controller
Step Procedure See Figure
1 Connect the phase or hot input line, via a remote SPST switch, to TB2-4
(
L1
).
Figure 2-17
2 Connect the neutral input line to TB2-3 (
L2
). Figure 2-17
3 Connect TB2-1, Power Common (
PC
), to a bus bar that is connected to
earth ground.
Individual wires should connect each controller Power Common (
PC
) screw
lug to the common bus bar.
Figure 2-17
Figure 2-18
4 Connect the earth ground at the supply source (green/green-yellow ground)
to TB2-5, Chassis Safety Ground (
G
).
Figure 2-17
Note
SURGE PROTECTION
All supply connections include surge protection
rated at 275 V ac normal mode.
Figure 2-17. 110/120 V ac Power Source to Controller
1 2 3 4 5
PC L3 L2 L1 G
SPST
NEUTRAL
HOT
EARTH GROUND
TB2 (REAR OF
CONTROLLER)
BOX
BREAKER
110/120 V ac
AC NEUTRAL
AC HOT
COMMON BUS BAR FOR
ALL CONTROLLERS
53MC5000 Process Control Station
2-22