Eaton MET User Manual

Indication messages when using edit key
The following indication messages can occur when using
the Edit key:

(Improper Security) message will display while
attempting an edit function when changes are disabled
by the security system. To enable, enter a higher security
code at FC 99. To enter the Security Code key in:
Func, 99, Enter, Security Code, Enter.
Proceed with function code value and setting changes.

(VALUE TOO LOW) means the function value you have
entered is below the acceptable limit.

(VALUE TOO HIGH) means the function value you have
entered is above the acceptable limit.
For more information, refer to Section5: Control
Programming: Indication messages.
Tap-changer operation troubleshooting
The regulator will not operate manually or automatically
1. Connect a voltmeter between R1 and G. Set the
CONTROL FUNCTION switch on LOCAL MANUAL.
2. Toggle the RAISE switch and measure the voltage
between terminals R1 and G. The voltage reading
should approximate the set voltage setting.
3. Place the voltmeter hot lead on L1, then toggle the
LOWER switch.
4. Measure the voltage between terminals L1 and G. The
voltage reading should approximate the set voltage
value.
5. If correct voltage readings are obtained in Steps 2
and 4, the trouble may be in the position indicator,
junction box, control cable, or motor capacitor. Refer to
the junction box troubleshooting section in document
MN225008EN VR-32 Voltage Regulator with Quik-Drive
Tap-Changer Installation, Operation, and Maintenance
Instructions.
6. If there is no voltage measurement in either Step 2 or
4, make a corresponding measurement (from R3 to G
and L3 to G) on lower terminal board TB2 or TB3.
7. If the voltages measured in Step 6 are approximately
the set voltage value, then the fault is likely a loose
connection or a faulty terminal on the back panel.
8. If Steps 2, 4, and 6 do not provide voltage readings,
measure the voltage between VM and G. The reading
should approximate the set voltage value.
9. If Step 8 does not yield a voltage measurement,
check the voltage between V1 and G at the voltage
disconnect knife switch.
A. If the set voltage value is approximately obtained,
the V1 disconnect or the ratio-correcting
transformer (RCT1) of the rear panel signal circuit is
probably faulty.
B. If voltage is not obtained, the trouble is in the
control cable, junction box, or regulator tank. Refer
to the junction box troubleshooting section of
document MN225008EN VR-32 Voltage Regulator
with Quik-Drive Tap-Changer Installation, Operation,
and Maintenance Instructions. If the junction
box checks are satisfactory, the trouble is in the
regulator tank. See documents S225-12-1 QD3
Quik-Drive Voltage Regulator Tap-Changer Manual,
MN225012EN QD5 Quik-Drive Voltage Regulator
Tap-Changer Manual, and MN225011EN QD8 Quik-
Drive Voltage Regulator Tap-Changer Installation
and Maintenance Instructions.
160
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018
CL-7 Voltage Regulator Control

Eaton MET Specifications

General

Brand	Eaton
Model	MET
Category	Cables and connectors
Language	English