Activate On Voltage Phase Reversal Alarm Setpoint; Activate On Current Phase Loss Alarm Setpoint; Enable/Disable Alarm Setpoint; Alarm Delay Setpoint - Eaton Cutler-Hammer IQ DP-4000 Instructions For Installation, Operation And Maintenance

IQ DP-4000
SECTION 5 - PROGRAMMING THE IQ DP-4000
5.12.7 Activate on Voltage Phase Reversal Alarm
Setpoint
This setpoint activates the alarm on a voltage phase
reversal condition. The IQ DP-4000 compares the
phase rotation of the metered voltages to the selected
phase sequence of the system (see Section 5.8 p.24),
and activates the alarm if the order of the phases does
not correspond for longer than the alarm delay (see
5.12.10 p.28). See Table 5.O for setting this option.
Alarm 1 Alarm 2
S3.6 S3.7
S2.7 S2.7
Table 5.O Activate on Voltage Phase Reversal
Settings
5.12.8 Activate on Current Phase Loss Alarm
Setpoint
This setpoint allows the selected alarm to activate on a
current phase loss condition. A current phase loss
occurs when the current on any one phase is less than
6.25% of the largest current of the other 2 phases. The
IQ DP-4000 activates the alarm if a current phase loss
exists for longer than the alarm delay (see 5.12.10
p.28). Table 5.P shows the settings for this option.
Alarm 1 Alarm 2
S3.6 S3.7
S2.8 S2.8
Table 5.P Activate on Current Phase Loss Settings

5.12.9 Enable/Disable Alarm Setpoint

The alarms disable or enable with a single switch (see
Table 5.Q). When you select OFF, the alarm will not
activate on any of the six conditions, regardless of the
other setpoints. A PowerNet / IMPACC external alarm
will, however, activate the alarm.
Alarm 1 Alarm 2
S3.8 S3.A
S2.1 S2.1
Table 5.Q Enable/Disable Alarm

5.12.10 Alarm Delay Setpoint

To determine how long a condition exists before an
alarm activates, you must set the alarm delay. Both
alarms have an independent alarm delay; however, the
delay setting is common to all six alarm conditions.
28
Position
(Set all 8 S2 switches)
OFF disables Activate on
Voltage Phase Reversal
ON enables Activate on
Voltage Phase Reversal
Position
OFF disables Activate on
Current Phase Loss
ON enables Activate on
Current Phase Loss
Position
(Set all 8 S2 switches)
OFF to disable alarm
ON to enable alarm
The alarm delay times how long the condition is
continuously above any active alarm threshold, and
activates the alarm when the preset time is exceeded.
The timer resets when the condition is below the alarm
threshold. See Table 5.R for setting the alarm delays.
= OFF = ON
Alarm 1
(Set all 8 S2 switches)
S3.8
S2.2 S2.3 S2.4
off off off
on off off
off on off
on on off
off off on
on off on
off on on
on on on
Table 5.R Alarm Delay Settings

5.12.11 Alarm Reset Delay Setpoint

For the reset delay, the IQ DP-4000 determines how
long the condition must be corrected before the
corresponding alarm is reset. Both alarms have an
independent reset delay; however, the delay setting is
common to all six alarm conditions.
The reset delay measures how long the condition is
continuously within the reset threshold, and clears the
alarm only when the preset delay time is exceeded. The
delay timer resets to zero when the condition is no
longer within the alarm reset threshold. See Table 5.S
to set the alarm reset delays.
= OFF = ON
Alarm 1
(Set all 8 S2 switches)
S3.8
S2.5 S2.6 S2.7
off off off
on off off
off on off
on on off
off off on
on off on
off on on
on on on
Table 5.S Reset Delay Settings
TD 17548B
Alarm 2
S3.A
(seconds)
S2.2 S2.3 S2.4
off off off
on off off
off on off
on on off
off off on
on off on
off on on
on on on
Alarm 2
S3.A
S2.5 S2.6 S2.7
off off off
on off off
off on off
on on off
off off on
on off on
off on on
on on on
Delay
Time
1
2
3
4
5
10
15
20
Delay
Time
(seconds)
1
5
10
20
30
60
90
120