GW Instek PSB-2000 Series User Manual - Manual (Page 82)

PSB-2000 Series User Manual
82
Alarm Function using External Contacts
Introduction An external contact switch can force the PSB-L
into the alarm state. When in the alarm state, the
output is turned off and ―HARD‖ is displayed on
the LED display. Remove the input power or
turn off the power from the POWER switch to
cancel the alarm state.
External Control Pins to activate the alarm state:
CH1: Pins 20 and 22 (COM)
CH2: Pins 11 and 13 (COM)
Fig. External Alarm
Input Pins
1
2
25
26
EXT CONT (J3)
Negative output
terminal of CH1
1
2
25
26
EXT CONT (J3)
Negative output
terminal of CH2
CH2
External
alarm input
CH1
External
alarm input