FSR IT-R4 - Manual (Page 9)

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• Switch B when pressed sends a ¼ second pulse to relay 1 on the leading edge; when released it sends a
¼ second pulse to relay 2 on the trailing edge.
• Switch C the first press sends a ¼ second pulse to relay 3; the second press sends a ¼ second pulse to
relay 4.
• Switch D when pressed sends a ¼ second pulse to relay 3 on the leading edge; when released sends a ¼
second pulse to relay 4 on the trailing edge.
• Switch E has no function.
Quad
Relay Mode Mode Switch Setting 101
This mode provides the ability to turn on or off all four Relays at once.
Switch A turns on all relays, Switch B turns off all relays, and Switch C toggles all relays. Switch inputs D & E
have no functions.
Special
Function Mode Mode Switch Setting 111
• Switch A turns relays 1 & 2 on and sends ¼ second pulse to relay 3.
• Switch B turns relays 1 & 2 off, and sends ¼ second pulse to relay 4.
• Switch C first press turns on relays 1 & 2 and pulses relay 3 for ¼ second. The second press turns off 1
& 2, and pulses relay 4 for ¼ second.
• Switch D the leading edge performs Switch A function, trailing edge performs Switch B function.
Mode Dipswitch 4
Mode Switch 4 determines the control activation state of the 4 relays.
• S4 set to “1”: Inputs A thru E are active Low. The leading edge is the High to Low transition of the
switch input. The trailing edge is the Low to High transition of the switch input.
• S4 set to “0”: Inputs A thru E are active High. The leading edge is the Low to High transition of the
switch input. The trailing edge is the High to Low transition of the switch input.