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Instructional Literature
Page
190
Effective: May 2008
Instructions for the FP-6000 Protective Relay
For more information visit: www.eaton.com
IB02602004E
12 Troubleshooting
There are two aspects to troubleshooting:
1. Failures in the system being protected.
2. Failures of the FP-6000 relay.
The FP-6000 can be programmed to record data during system
faults, which can be analyzed to determine the cause of faults.
The FP-6000 continuously determines its own ability to function,
if any internal failures are detected the FP-6000 can raise an
alarm. For information on troubleshooting the FP-6000 relay
failures see Section 12.1. For information on troubleshooting the
circuit the FP-6000 is protecting (see Section 12.2).
The FP-6000 firmware can be revised in the field by using a PC
and the front mounted serial port on the FP-6000. Section 12.4
covers the procedures for upgrading the firmware in the field.
12.1 Troubleshooting the Relay
The FP-6000 performs a great many self-checks on a continuous
basis to warn the operating personnel of impending or actual
failure, and allowing steps to be taken to minimize the impact of
such failure. Some internal failures will not effect the ability of the
FP-6000 to protect the circuit while others will. Detected failures
of the FP-6000 will cause the relay healthy contact output to de-
energize, see Section 12.1.1. All FP-6000 failures will cause the
Alarm LED on the front panel to light, and the condition to be
reported over the INCOM communication network usually
displayed in the PowerNet application software. The front display
will also indicate failures and is described in Sections 12.1.4 and
12.1.5.
12.1.1 Relay Healthy Output
The relay healthy alarm is a crucial part of notification for relay
failure. This contact output is energized during normal operation,
when no warnings or failures are present. The relay healthy
contact output is a Form C relay. Typically the normally closed
contacts are used and wired to an alarm that is guaranteed to get
immediate attention. If an FP-6000 relay self diagnostic failure is
detected, the relay healthy alarm will be de-energized and the
alarm will be sounded. In the case of a catastrophic failure of the
FP-6000 or its control power supply, the normally closed relay
will cause an alarm whenever power is removed from the relay
healthy contact output.
12.1.2 Failures That Disable Protection
In the case that an FP-6000 critical failure is detected, the
protection functions of the FP-6000 are disabled, and all output
relays except relay healthy will remain in their current state. The
relay healthy output will be de-energized as described in Section
12.1.1. Protection is disabled so that a false trip operation will not
occur. If it is desired to trip the breaker upon FP-6000 failure then
the relay healthy alarm should be connected to the breaker trip
coil in parallel with the trip output contact. Table 57, under the
“Protection” column, shows what diagnostic test failures will
cause protection to be disabled.
12.1.3 Technical Assistance
For additional information, technical assistance or referral to a
local authorized distributor, contact Power Management
Applications Support at 1-800-809-2772, option 1 / option 1
(outside the United States please call 1-414-449-7100 option 1 /
option 1). You can also e-mail us at [email protected] or visit
us on the web www.eaton.com/electrical and follow the power
management products link.
This instruction booklet is published solely for informational
purposes and should not be considered all-inclusive. If further
information is required, you should consult Eaton. Sale of
product shown in this literature is subject to terms and
conditions outlined in appropriate Eaton selling policies or other
contractual agreements between the parties. This literature is
not intended to and does not enlarge or add to any such contract.
The sole source governing the rights and remedies of any
purchaser of this equipment is the contract between the
purchaser and Eaton.
NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OF
MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE
OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING
THE INFORMATION, RECOMMENDATIONS AND DESCRIPTIONS
CONTAINED HEREIN.
In no event will Eaton be responsible to the purchaser or user in
contract, in tort (including negligence), strict liability or otherwise
for any special, indirect, incidental or consequential damage or
loss whatsoever, including but not limited to damage or loss of
use of equipment, plant or power system, cost of capital, loss of
power, additional expenses in the use of existing power facilities
or claims against the purchaser or user by its customers resulting
from the use of the information, recommendations and
description contained herein.
WARNING
FAILURE TO UTILIZE THE RELAY HEALTHY CONTACT OUTPUT IN A
MANNER THAT WILL BRING IMMEDIATE ATTENTION IF DE-ENER-
GIZED CAN RESULT IN A FAILURE TO PROTECT THE CIRCUIT FOR
EXTENDED PERIODS OF TIME.