97-7224006_3-31-15
Information subject to change
27
7224 OPERATOR’S MANUAL – SECTION 5
chaining Interlock (PIN 4) across amps.
When Interlock (PIN 4) is shorted to Digital Ground
(PIN 17), amplifier is placed in Standby mode.
When switch is open, amplifier is released to the
Run condition.
Signal Type:
DC
Level when Asserted:
0 to 8 V
Level when Deasserted:
10 to 15 V
IMPORTANT:
The amplifier must be configured for
Ready mode at startup (factory default) or the Run
button must be pressed at the amplifier front panel
at startup. The Remote Enable/Standby circuit will
not function if the Startup to Standby Latch has
been activated on the amplifier.
5.1.4 Remote Monitoring of Voltage and Current
Figure 5.5 – Remote Voltage Monitoring
Using the SIM-BNC Interlock connector located on
the back panel of the amplifier, you can remotely
monitor both voltage and current output.
Use a male, 25-pin D-Sub connector and high-
quality wire to build the desired circuits.
Remote Monitoring of Voltage Output
Purpose:
Use a voltage meter to monitor output
voltage.
Method:
Connect a voltage meter to monitor the
output voltage being produced by the amplifier.
Connect across PIN 1 (Amp Out) and PIN 10
(Sampled Common). See
Figure 5.5.
Signal Type:
AC or DC
Level when Asserted:
Can be greater than
+/–200Vpeak
Level when Deasserted:
0V
Note:
Used for monitoring amplifier output volt
-
age; driving slave amplifiers in multi-amp systems.
Wired to amplifier output. Do not connect to any im
-
Remote Monitoring of Current Output
Purpose:
Use a voltage meter to monitor output
current.
Method:
Connect a voltage meter to monitor
the output current being produced by the ampli-
fier. Connect across PIN 6 (I MON+) and PIN 10
(Sampled Common). See
Figure 5.6.
Signal Type:
DC
Level when Asserted:
7212/7224: 5A/V; /7796:
20A/V
Level when Deasserted:
0V
pedance of less than 10K ohm. High voltage output
possible. Use appropriate safety precautions.
Figure 5.6 – Remote Current Monitoring
