14
035-00540R-r4
PIN
Name
Description
14
Clear Fault/
LED Hours
High-to-low transition clears faults; low-to-high transition initiates visual
indicator sequence of accumulated LED hours
15
Temperature
Monitor
Output is a voltage proportional to the maximum UV LED heat sink
temperature.
Conversion Factor: 0.05V/°C.
Table 1 PLC Connector Pin Out
6.2
Integrating Monitoring with External Circuitry
All inputs and outputs from the PLC interface are opto-isolated. The digital outputs are implemented using
NPN logic. The equivalent circuit is shown in
Figure 8
below
Figure 8 PLC digital output equivalent circuit
6.3
Interfacing with the Power Cable
Figure 9 Power Connector (looking at UV Head)
PIN
Name
Description
A1,A2
+ve
48V DC power feed. A1 and A2 shorted together internally
A3,A4
-ve
48V DC power return. A3 and A4 shorted together internally
A5
Chassis
Chassis ground connection
Table 2 Power Connector Pin Out
48V Input Requirements:
Voltage: 46-50V DC
Current: AC7150=7.5A; AC7300=14.5A
Note:
For safety, the AC7- series is internally fused at 15A. This fuse is not replaceable. If it is suspected
that the internal fuse has blown, please contact
Excelitas Technologies Service Centre
for further
assistance and refer to
Sections 11 and 12
of this manual.
