3.3.2
3.3.3
SmartConnect
Operating manual
Screw connections
(22)
(21)
3.3:
Screw connections on the housing
(17) Metric screw connections (M32) for DC main cables
(18) Earthing connection (M8) with washers that penetrate the paint
coating
(19) Metric screw connections (M16) for string plus cable
(20) Metric screw connections (M16) for string minus cable
(21) Metric screw connections (M25) for mains cable
(22) Drill holes for metric screw connections (EMC, M25) for CAN cable
(optional), already supplied with seal screw connections sealed when
first delivered
RealProtect
I
(23)
(24)
(29)
(25)
3.4:
Trigger thresholds for a conventional safety system (left) and the
RealProtect safety system (right)
(23) Safe fuse blowing range
(24) Unsafe fuse blowing range
(25) Module string characteristic
curve
(26) Excess voltage trigger
threshold
(27) Undervoltage trigger
threshold
The RealProtect safety system integrated in SmartConnect performs
central safety functions. It replaces conventional fuses with electronically
disconnectable relays. This guarantees a safe tripping range (31). The
3 Technical description
(20)
(19)
I
(31)
(30)
(29)
(25)
(28)
U
(27)
(28) Reverse current trigger
threshold
(29) Module short circuit current
(30) Forward current trigger
threshold
(31) Safe trigger range of
RealProtect
(17)
(17) (18)
U
(26)
15