Facility Explorer FX16 - Page 121

FX16 Master Controller Technical Bulletin 121
Table 38: Digital Input (DI)
Terminals Channel Type Remark/Application
TB2 (21-33)
DI1, DI2, DI3,
DI4, DI5, DI6,
DI7, DI8
Potential free
contacts
Transition counter at 50 Hz max.
Minimum time ON: 10 ms
Minimum time OFF: 10 ms
Prescaler function: max. division
by 100
34, 35
DI V~ Hot
DI V~ Com
24 VAC FX16 (not Rev. A): for isolation of
DIs from the microprocessor a
separate 24 VAC power supply is
required.
Table 39: Digital Output (DO)
Terminals Channel Type Remark/Application
TB3
DO1, DO2, DO3 SPST 8(3)A
power relays
Max. switching power:
Motor: 240 W, 0.5 hp, 250 VAC
Rating (resistive): 8 A 125 VAC
8 A 30 VDC
8 A 250 VAC
UL tested life (min. operations):
30,000
operations
(at 360 ops x hour)
Dielectric strength coil-contacts:
4,000 V RMS for 1 minute
TB4
DO4, DO5 SPST 5(3)A
power relays
or
0,5A/24 VAC
triacs
TB5
DO6, DO7, DO8 SPST 5(3)A
power relays
or
0,5A
/24 VAC
triacs
Max. switching power (relays):
Motor: 150 W, 0.25 HP, 250VAC
Rating (resistive): 5 A 125 VAC
5 A 30 VAC
5 A 250 VDC
UL tested life (min. operations):
30,000
operations
(at 360 ops x hour)
Dielectric strength coil-contacts:
4,000 V RMS for 1 minute
TB6
DO9 SPDT NC
8(3)A 250 V
relay
Same as TB3 relays
Fail relay for enhanced security.
The relay returns to its Normally
Closed (NC) position not only at
power fail but also in case the
microprocessor should fail:
watch-dog, brown-out, and so on.