User manual

Table Of Contents
5-20 Section 5: Module Configuration
Moseley SL9003Q 602-12016 Revision G
5.9.2. Relay Electrical Interface
Relays 1 to 4 (pins 8 through 1 on I/O connector, respectively) are solid-state relays
rather than mechanical relays. Figure 5-17 below shows a schematic illustration of
representative relay interface.
PVG612
Power MOSFET Photovoltaic Relay
Single Pole, NO, 0-60V, 2.0A DC, .15Ω
S
D
G
D
+
LOAD
RELAY 4
2
1
Ext I/O
Figure 5-17 Representative Internal Relay Wiring
These relays are International Rectifier PVG612 series HEXFET Power MOSFET
Photovoltaic Relay, single-pole, normally-open. Interface parameters are given below:
Max. Voltage
60V
Max Current
2.0A
Open Resistance
100 M
Closed Resistance
0.15