S&C Instruction Sheet 653- 502
23
Components and Controls
Service Personnel
Controls
In addition to the operating controls located inside the switchgear bay, redundant oper-
ating controls are located in the control bay. These controls are intended to be used by
authorized service personnel. See Figure 13 for the location of these controls.
ENABLE/DISABLE
–This mushroom pushbutton performs the same functionality as the
toggle switch in the switchgear bay. This button serves as an Emergency Stop for service
personnel.
RESET
–This pushbutton allows service personnel to manually reset the system alarm(s).
When the system is in the
Bypass
state and the RESET pushbutton is pushed, all latched
alarm(s) will be reset if the alarm(s) have cleared.
Figure 13. Location of the service operating controls.
Service operating controls