Explorer FX15 - Page 55

FX15 Controller Technical Bulletin
55
Table 20: Digital Input (DI)
Terminals Channel Type Remark/Application
TB2 (21-33)
DI1, DI2, DI3, DI4,
DI5, DI6, DI7, DI8
Potential free
contacts
TB2 (34, 35)
DI V~ Hot
DI V~ Com
24 VAC/DC Power supply for the
Digital Inputs. Must be
used in order to maintain
the opto-isolation a
separate power supply
from the one used for the
controller.
Table 21: Digital Output (DO)
Terminal
Channel Type Remark/Application
TB3
DO1, DO2, DO3 SPST 8(3)A
power relays
Maximum switching power:
2000VA, 240W, 0.5HP, 250
VAC
UL/CUR rating: 8A 250 VAC
8A 30 VDC
VDE rating: 8A 250 VAC
Expected electrical life min.
operations:
1 x 105 operations (360 ops x
hour)
Dielectric strength:
coil-contacts 4000 Vrms
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
Maximum switching power:
1.250 VA, 150 W
Rating (resistive): 10 A
125 VAC, 5A 250 VAC, 5 A 30
VDC
Expected electrical life (min
operations):
10A 125 VAC 5x104
5A 250 VAC 5x104
5A 30 VDC 105
Dielectric strength:
coil-contacts 4000 Vrms
for 1 min
TB6
DO9 SPDT NC
8(3)A 250V
relay
Same as TB3 relays
Fail relay for enhanced
security. The relay will return
to its NC position not only at
power fail but also in case the
microprocessor should fail:
watch-dog, brown-out, etc.