Manual

Replace Your QRD Module D–11
Publication 17716.5.99 - December 1995
Interpret Status Indicators
Indicators
If indicator
➀
Is ON Is OFF
ACTIVE
the CFM module is successfully receiving
power and operational
a. Check FAULT LED  if on, follow the
steps listed under if FAULT is ON.
b. Check power supply.
INPUTS
(F0  F3)
F0 - flashes with pulses at Channel 1
F1 - flashes with pulses at Channel 2
F2 - flashes with pulses at Channel 3
F3 - flashes with pulses at Channel 4
a signal is not present at the designated
input terminal
S0 S1 S2 S3
ACTIVE
INPUTS/OUTPUTS
STATUS
F0 F1 F2 F3
G0 G1 G2 G3
O0 O1 O2 O3
STATUS S1
S2
S3
S4
BTW invalid (BTW word 1, bits 0815) 0 0
BTW is occurring
BTR is occurring
frequency > 10.0kHz (overrange) on
any channel
BTW is valid
BTW is not occurring
BTR is not occurring
all frequencies within operating range
S0 S1 S2 S3
S4 S5 S6 S7
FAULT
FAULT
1. Turn off power to the I/O chassis
backplane and wiring arm.
2. Reseat the CFM module in the
I/O chassis.
3. Restore power to the I/O chassis
backplane and wiring arm.
Important: If the fault LED remains on,
there may be an internal problem.
Contact your local
AllenBradley representative for
additional assistance.
normal operation
➀
All other LED' s are OFF in normal operation.
Additional Feature
When you replace your existing QRD module with the CFM module,
you can set input channel jumpers for:
• 500mV ac sensitivity for improved noise immunity
• frequencies > 70Hz (flowmeter filter jumpers)
For additional information on setting the input channel jumpers, see:
Install the
CFM Module
2