Issue:
What happens if I put a jumper across the control switch terminals (Pins 5 & 6) on the TD-7 Digital-Set time delay relay, but I have the function set to On Delay, which doesn’t need a Control Switch to initiate it? Will the unit operate satisfactorily?
Solution/Resolution:
No control switch is required when the unit is set to On Delay, Interval On, Flasher (OFF 1st) or Flasher (ON 1st). However, if for any reason Pins 5 & 6 have been jumpered before Input Voltage is applied when set to one of these functions, the unit will operate without any problems. The software program is written to ignore Pins 5 & 6 when either of these four functions are selected using the first pushbutton-thumbwheel.
Of course, when in the Off Delay, Single Shot, Watchdog, Triggered On Delay, On/Off Delay or Single Shot (Falling Edge) mode, a dry contact control switch must be connected to Pins 5 & 6 to initiate the function. If the trigger across Pins 5 & 6 is closed when Input Voltage is applied, the unit will recognize the closed trigger and operate normally.