Operating instructions

24 Operating Instructions
Bypass Procedures
The Bypass Procedures screens display the typical switch bypassing procedures. Screen 1 dis-
plays instructions to bypass the switch to the current input source. Screen 2 displays instructions
to return from bypass to normal operation.
Figure 26 Bypass Procedures Screen 1
Figure 27 Bypass Procedures Screen 2
Meter Calibration
The Meter Calibration screen is used to calibrate the displayed parameters. The voltages and cur-
rents for each phase of each source are adjustable individually. The kVA and kW measurements
are calculated based on the voltages and currents. To limit access to authorized personnel, Secu-
rity Access is required to make changes to the calibration screen. The meter calibrations do not
affect the switch transfer setpoints, which are independently adjustable by internal controls
accessible only to qualified service personnel.
BYPASS PROCEDURES (to SOURCE 1)
NEXT PAGE
MASTER MENU
1. If bypass to SOURCE1 is not desired, select the “SOURCE TRANSFER” screen
and follow the instructions to transfer the load to the desired bypass
source.
3. Open the alternate source input breaker CB2. Rotate and remove the interlock
key and insert key in the CB4 bypass breaker interlock.
2. Remove interlock key from CB5 and place in CB4 interlock.
4. Rotate interlock keys in CB4 bypass breaker interlock to retract interlock.
5. Close bypass breaker CB4. Verify breaker status on “MONITOR/MIMIC” screen.
DOWN :
SELECT :
6. Open source input breaker CB1. Rotate interlock key and remove to lockout
breaker.
7. Open isolation breaker CB3 to remove power from static switch.
BYPASS PROCEDURES (Return to Normal Mode)
FIRST PAGE
MASTER MENU
UP :
SELECT :
1. Insert key in the CB1 breaker interlock. Rotate key to retract interlock.
3. Close output breaker CB3. Verify CB3 breaker status and switch STS 1 and
the “MONITOR/MIMIC” screen.
2. Close source input breaker CB1. Verify SOURCE1 and CB1 breaker status on
4. Open bypass breaker CB4. Rotate keys in CB4 interlock to extend interlock.
5. Remove proper key from CB4 interlock and insert in CB2 breaker interlock.
6. Close source input breaker CB2. Verify SOURCE 2 and CB2 breaker status on
OUTPUT boxes are highlighted on the “MONITOR/MIMIC” screen.
Rotate key to retract CB2 breaker interlock.
the “MONITOR/MIMIC” screen.