Eaton Electrical QSNAP user manual Status LED, Qsnap Truth Table

Intelligent Technologies (IT.) QSNAP

February 2002

Status LED

The status LED is located on the lower right of the QSNAP as pictured in Figure 1: QSNAP Features. The LED’s status changes depending on the state of the QSNAP.

The following table lists the IT. QSNAP LED statuses and describes the meaning of each state.

Table 14: Status LED

State

LED Behavior

No Power	OFF
Power-Up Routine	OFF – CRC corrupt
Waiting for a member ID,
power-up OK (mostly off)
Received a member ID,
off-line (slow blink)
On-line (mostly on)
Faulted (fast blink)
Identify device (burst)

Truth Table

Table 15: QSNAP Truth Table

	Fieldbus Inputs
Old State	Run 1	Run 2	Reset	Event	New State	Action
FAULTED	–	–	1	RESET	OFF	FAULT = 0	READY = 1
OFF	0	0	–	NONE	OFF	NONE
OFF	1	0	–	RUN 1	RUNNING 1	RUNNING 1 = 0
OFF	0	1	–	RUN 2	RUNNING 2	RUNNING 2 = 0
RUNNING 1	1	1	–	RUN 2	RUNNING 1	NONE
RUNNING 2	1	1	–	RUN 1	RUNNING 2	NONE
RUNNING 1	1	1	–	RUN 1 removed	RUNNING 2	RUNNING 1 = 0, RUNNING 2 = 1
RUNNING 2	1	1	–	RUN 2 removed	RUNNING 1	RUNNING 1 = 1, RUNNING 2 = 0
RUNNING 1	1	0	–	FAULT	OFF	RUNNING 1 = 0	READY = 0
RUNNING 2	0	1	–	FAULT	OFF	RUNNING 2 = 0	READY = 0
RUNNING 1	1	0	–	WARNING	RUNNING 1	RUNNING 1 = 1	WARNING = 1
RUNNING 2	0	1	–	WARNING	RUNNING 2	RUNNING 2 = 1	WARNING = 1

–	= state not important	RUNNING 1	= Run/FWD/SLOW
1	= state true (energized)	RUNNING 2	= REV/FAST
0	= state false (de-energized)	FAULT = GND FLT and/or OL TRIP

WARNING = Running Current > FLA but not tripped

Pub. No. MN05001001E 13