ChipSHOUTER Users Manual
: Fault Modes
49
ing times the trigger is known to be inactive. This command
tells ChipSHOUTER that it can perform the required self-
checks (including temperature checks), and will not be in-
terrupted by the discharge event.
See the API documentation (online) for more details of
this, or the serial interface documentation on page 52.
Triggered when Disarmed
The external trigger input should not be triggered when the
device is disarmed. If this occurs, a fault tone sounds in
addition to the fault LED blinking.
It is expected the external user is gating the trigger
input, as otherwise triggers could occur during the arming
process (resulting in malformed pulses).
The error tone will sound (without the fault LED blink-
ing) if you attempt to use the PULSE button or pulse command
over the serial interface while disarmed.
Trigger Length Invalid
The external hardware trigger should be used only to insert
short pulses, as the internal capacitor bank does not have
sufficient energy storage for long pulses.
This error typically means the external interface has
the wrong polarity setting. The external interface can be
set for active-low or active-high operation to interface
with a wide variety of standard lab equipment.
If the ChipSHOUTER is set for active-low operation, this
error could occur when the attached equipment is turned off
or disconnected while the ChipSHOUTER is still armed. In-
