GE L90 Instruction Manual page 198

PRODUCT SETUP
Access supervision
SETTINGS  PRODUCT SETUP  SECURITY  ACCESS SUPERVISION
 ACCESS
 SUPERVISION
The following access supervision settings are available.
INVALID ATTEMPTS BEFORE LOCKOUT
within a three-minute time span before lockout occurs. When lockout occurs, the
FlexLogic operands are set to "On." These operands are returned to the "Off" state upon expiration of the lockout.
DENIED
PASSWORD LOCKOUT DURATION
of invalid password entries specified by the
The L90 provides a means to raise an alarm upon failed password entry. If password verification fails while accessing a
password-protected level of the relay (either settings or commands), the
asserted. The operand can be programmed to raise an alarm via contact outputs or communications. This feature can be
used to protect against both unauthorized and accidental access attempts.
The
UNAUTHORIZED ACCESS
command. Therefore, to apply this feature with security, password-protect the Command level. The operand does not
generate events or targets.
5
If events or targets are required, the
event logs or targets enabled.
The following table outlines access level timeout settings.
SETTINGS  PRODUCT SETUP  SECURITY  ACCESS SUPERVISION  ACCESS LEVEL TIMEOUTS
 ACCESS LEVEL
 TIMEOUTS
These settings allow the user to specify the length of inactivity required before returning to the Restricted access level.
Note that the access level is set to Restricted when control power is cycled.
COMMAND LEVEL ACCESS TIMEOUT
return to Restricted access from the Command password level.
SETTING LEVEL ACCESS TIMEOUT
to Restricted access from the Command password level.
Dual permission security access
SETTINGS  PRODUCT SETUP  SECURITY  DUAL PERMISSION SECURITY ACCESS
 DUAL PERMISSION
 SECURITY ACCESS
This feature provides a mechanism to prevent unauthorized or unintended upload of settings to a relay through the local
or remote interface.
5-12
 ACCESS LEVEL

 TIMEOUTS
INVALID ATTEMPTS

BEFORE LOCKOUT: 3
PASSWORD LOCKOUT

DURATION: 5 min
— This setting specifies the number of times that an incorrect password can be entered
— This setting specifies the time that the L90 locks out password access after the number
INVALID ATTEMPTS BEFORE LOCKOUT
operand is reset with the
COMMANDS  CLEAR RECORDS  RESET UNAUTHORIZED ALARMS
UNAUTHORIZED ACCESS
COMMAND LEVEL ACCESS

TIMEOUT: 5 min
SETTING LEVEL ACCESS

TIMEOUT: 30 min
— This setting specifies the length of inactivity (no local or remote access) required to
— This setting specifies the length of inactivity (no local or remote access) required to return
LOCAL SETTING AUTH:

On
REMOTE SETTING AUTH:

On
ACCESS AUTH

TIMEOUT: 30 min
See below
Range: 2 to 5 in steps of 1
Range: 5 to 60 minutes in steps of 1
LOCAL ACCESS DENIED
setting has occurred.
UNAUTHORIZED ACCESS
operand can be assigned to a digital element programmed with
Range: 5 to 480 minutes in steps of 1
Range: 5 to 480 minutes in steps of 1
Range: selected FlexLogic operands (see below)
Range: FlexLogic operand
Range: 5 to 480 minutes in steps of 1
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
or
REMOTE ACCESS
FlexLogic operand is