CONTROL UNIT FAST HOOK PW98

Description WORKING
the electronic control unit changes a relay status activating an external buzzer to the ground.
- When its switched on, the control unit drives the output to Gnd for about 2,5-sec (initial
check) if input d+ (pin 31) is low (the machine is switched off).
if the input is high or becomes high during the 2,5-sec check, this one ends and the output is
driven by the input: if the input is high, the output is activated (pin 53s =Gnd), if its low, the
output remains open.
-at the end of check test: if pin 31 (d+) is low (the machine is switched off) the output is open
(deactivated) independently from t signal. if d+ and pin t are high, the output is activated (pin
53s=Gnd), while if d+ is high and pin t is low, the output is open.
the activation/deactivation of pin t arrives after with 1 sec delay after the switching on or
switching off of the machine (during the check test instead, if d+ is high, the output is driven
without delay).