Eaton GridAdvisor Series II Installation, Operation And Maintenance Instructions

Tap position out-of-sync
If the control loses sync with the position indicators (check
FC 12, Present Tap Position), then check FC 49, Tap-Changer
Type against the nameplate on the regulator. The nameplate
indicates what type of tap-changer is on the regulator. FC 49
must be set for the type of tap-changer (Spring Drive, Direct
Drive, QD8, QD5, QD3).
If the control is on a competitors regulator, FC 49 should be
set for the manufacturers name.
Regulator will not tap beyond a certain tap position
If the regulator will not tap beyond a certain tap position,
check the limit switch settings on the position indicator. If
the limits need to be adjusted, adjust upper and lower limits
to allow proper regulation.
The regulator operates manually but operates
incorrectly when set on automatic
Run the regulator to the neutral position with the control
switch. Check for voltage between V
4
and G on TB
1
. This
is the sensing circuit supplying voltage from the output of
RCT
1
on the rear panel. If this voltage is more than 10%
above or below the programmed voltage level setting of the
control, then the source is beyond the range of the regula-
tor. An absence of voltage would indicate a wiring problem
such as an open somewhere in the control power supply. If
these checks are correct, perform the following:
1. If the control will not operate automatically, verify that
the band edge indicators are functioning. (These are the
Out-of-Band High and Out-of-Band Low indicators
located on the front panel.) If they are not functioning,
check FC 56, Reverse Sensing Mode. Set it to Locked
Forward if it is not there already. Retry the automatic
mode of operation.
2. Verify that FC 69, Auto Blocking is set to Normal.
Retry the automatic mode of operation.
3. Measure the voltage from V
S
to G on lower terminal
board TB
2
.
A. A measurement of approximately the set voltage
value at V
S
to G indicates that the problem is in the
control.
B. If there is no voltage present at V
S
to G, the trouble
is in the V
1
disconnect or the ratio-correcting trans-
former of the back-panel circuit. Replace them.
4. Check the hold switch circuit.
A. Verify that the tap changer will complete a tap
change by placing the CONTROL FUNCTION switch
to Manual and toggling the Raise/Lower switch in
the desired direction.
B. If the Raise/Lower switch must be held in the
Raise or Lower position to complete a tap change,
the problem is in the hold switch circuit. If the
holding switch is not working, a Quik-Drive tap
changer will do multiple taps until the tap change time-
out occurs.
C. Check for voltage between TB
2
-HS and G and
TB
1
-HS and G. If voltage is present at TB
1
-HS
and not on TB
2
-HS, the problem is in the back
panel wiring harness. Replace the orange HS lead
from TB
1
-HS to TB
2
-HS. If no voltage is present
at TB
1
-HS, the problem is in the control cable,
junction box cover, or the hold switch (located
inside the regulator) itself. Check cable continuity
up to the junction box. If it appears normal, the
problem is the hold switch. Adjust or replace it
(see Service Information S225-12-1 QD3 Quik-Drive
Voltage Regulator Tap-Changer Manual and Service
Information S225-10-19 Voltage Regulator Quik-Drive
T875 Tap-Changer Switch; Operating, Maintenance,
Troubleshooting, and Parts Replacement Instructions.
If all appears to be in order, the problem is most
likely in the control, not in the holding switch.
Check FC 56, Reverse Sensing Mode
When there is no load current and the regulator will not
operate in automatic, check the C switch on the back
panel. If the C switch is closed and FC 56 is set for
Bi-directional, the regulator will not operate in automatic.
The C switch should be open for normal operation.
Check FC 69, Auto Operation Blocking Status
1. Check the Auto/Remote/Manual switch. The switch
should be on Auto/Remote.
2. Verify that FC 69 is set to Normal. To check the FC 69
setting:
Function, 69, Enter.
3. If not on Normal and resetting is blocked by the secu-
rity feature, enter the security code via the keypad to
change the blocking status:
A. Function, 99, Enter 32123 (default), Enter.
B. Function,69, Enter.
C. Edit/Reset, Scroll to Normal, Enter.
Check FC 170, Tap-to-Neutral
1. Verify that FC 170 is set to Off. To check the FC 170
setting:
Function, 170, Enter.
2. If not on Normal and resetting is blocked by the secu-
rity feature, enter the security code via the keypad to
change the blocking status:
A. Function, 99, Enter 12121 (default), Enter.
B. Function,170, Enter.
C. Edit/Reset, Scroll to Off, Enter.
105
CL-6 SERIES CONTROL INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225016EN January 2016

Eaton GridAdvisor Series II Specifications

General

Brand	Eaton
Model	GridAdvisor Series II
Category	Cables and connectors
Language	English