OPM_STS_400_25A_100_1GB_V011
20
GE DE STS: installation and operating manual 1.1 (GB)
Digital Energy
™
Static Transfer Switch
g
3.6 Starting
up
Make sure that all necessary connections described in chapter 3.5 have been made.
Make sure that the internal switches are in the positions as described in table 2, and that the bypass
interlock plate is in position “NORMAL MODE”.
Start up procedure for connecting the PRIMARY SOURCE to the STS OUTPUT should proceed as
follows:
1. Choose the primary source as preferred with the button “PREFERRED SOURCE” on the control
panel (button is released if primary source is preferred).
2. Choose manual operation mode with the button “OPERATION” (button is released if manual
mode is on). Remote control is blocked when manual mode is on.
3. Set switch K4 STS PRIMARY SOURCE into “ON” position.
4. Check if the LEDs on the control panel indicate that the primary source is preferred, healthy, and
on.
5. Set switch K5 STS SECONDARY SOURCE into “ON” position.
6. Check if the LEDs on the control panel indicate the secondary source as healthy and proper
synchronization of both sources.
7. Set switch K3 STS OUTPUT into “ON” position.
8. Choose automatic operation mode with the button “OPERATION” on the control panel. In case of
automatic operation the button is pressed.
9. Close the door of the STS.
After the start up procedure the states of the switches should be as in table 3.
Table 3
K1 STS
PRIMARY BYPASS
OFF
K2 STS
SECONDARY BYPASS
OFF
K3 STS
OUTPUT
ON
K4 STS
PRIMARY SOURCE
ON
K5 STS
SECONDARY SOURCE
ON
