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E
XTERNAL
I
NTERFACES
3-4
D
OC
.01040045
R
EV
.6
3.1.4 Discrete
Interface
The operator may wish to monitor several critical internal fault or alarm parameters using dry
contacts. Alarms and faults can be programmed to dry contacts.
The pin-out for connector J6 is shown in Table 3-2.
Table 3-2. J6 Discrete Interface Pin Out
Pin Number
Function
1
Relay 1 COM
2
Relay 1 NO
3 Relay2
NC
4
Relay 3 COM
5
Relay 3 NO
6
Relay 4 NC
7 Not
Connected
8 Not
Connected
9
Relay 1 NC
10
Relay 2 COM
11
Relay 2 NO
12
Relay 3 NC
13
Relay 4 COM
14
Relay 4 NO
15 No
Connect
The discrete interface, allows very simple remote monitoring of amplifier status and health by a
simple PLC or current loop implementation by the operator.
There are 4 dry contact relay outputs available to the user. Both normally open (NO) and
normally closed (NC) contacts are provided. Not every Fault or Alarm is to be monitored by
the discrete relay contacts. Please consult Table 3-3, for a complete list of faults and alarms that
can be mapped to any of the four relay outputs.
The desired pin-out monitoring is chosen via the front panel menu item.
Typically, the NC contacts are used, and a loop current is run through the contacts. When the
amplifier is running without faults, software enables all the relays, the NC contacts are closed,
and current flows in the loop. If a fault occurs, the contacts will open and interrupt the loop
current, signaling an alarm to the external monitoring circuit. Note this allows detection of
amplifier faults, general amplifier failure, power failure and broken or disconnected monitoring
circuit. Use of the NO contacts will only protect against amplifier faults.
Summary of Contents for S4UIA
Page 4: ...INDOOR SSPA IV DOC 01040042 REV 6 This page is intentionally left blank...
Page 23: ...UNPACKING INSTALLATION DOC 01040044 REV 6 2 7 Figure 2 1 Connector Locations C band shown...
Page 42: ...INITIAL POWER ON CHECKOUT 4 10 DOC 01040053 REV 6 This page is intentionally left blank...
Page 66: ...OPERATION 5 24 DOC 01040086 REV 7 This page is intentionally left blank...
Page 80: ...SSPA FUNCTIONAL TREE 7 2 DOC 01040089 REV 4 This page is intentionally left blank...
Page 90: ...CUSTOMER WARRANTY AND SUPPORT A 2 APP 01040025 REV 1 This page is intentionally left blank...