50
12.4.1
/SYNC
When the output sine wave of the Instrument is about to pass through 0 degrees, pin 9
(/SYNC) will send out a 250 uS 12 V to 0 V pulse as shown in the below timing diagram.
This output
Figure 52 - Sync Timing Diagram
12.4.2
/Fault_out
Pin 16 (/Fault_out) indicates when a fault occurs or the Instrument is in protection
status. During normal operation, the voltage level of this pin stays high (5 V). The
voltage level will be low (0 V) if any of the circumstances below occurs:
4.
Interface CAN Error
5.
Module CAN Error
6.
SW Over Current Prot
7.
SW Over Voltage Prot
8.
SW Over Power Limit
9.
SW Over Max VA Limit
10.
Remote Inhibit ON
12.4.3
/Transient
When the output status changes, pin 21 (/Transient ) will send out a 500 uS, 5 V to 0 V
pulse to synchronize with another external device as shown in the below timing
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