ote:N When installing an Eaton's Cooper Power series
control on a non-Eaton's Cooper Power series
voltage regulator, the control MUST have the
calibration process performed. To calibrate the control
on the non-Eaton's Cooper Power series regulator
the internal power (System Voltage) must be applied.
Current calibration
1. Connect an accurate true-RMS-responding ammeter in
series with the current source.
2. Connect a stable 60/50 Hz current source (with less
than 5% harmonic content) to the reference ammeter
and to the current input terminals C1 and C3 on TB3 (or
TB2 if present) (C1 is identified by a red wire, and C3 is
identified as the green wire).
3. To power the control, connect a 120 Vac voltage source
to the EXTERNAL SOURCE terminals.
4. Place the power switch on External Power.
5. Adjust the current source to provide 0.200 A to the
control, as read on the reference ammeter.
6. Before calibration can be performed, Security Level 3
must be activated by entering the proper security code
at FC 99, Security Code. The default security code is
"Admin".
FUNC, 99, ENTER; Admin (default), ENTER.
7. Access FC 48, Current Calibration.
FUNC, 48, ENTER.
8. The display will show the current applied to the control.
This should correspond to the reading on the reference
ammeter. If the control reading is significantly different
(greater than 0.6 mA error), the calibration can be
altered by pressing EDIT, then entering the correct
current as displayed on the reference meter, followed
by ENTER. The current circuit is now calibrated.
164
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018
CL-7 Voltage Regulator Control
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