TCV e2 User Manual
30 of 36
P/N 857414 Rev A
07/01/2020
Discrete I/O
The TCV e2 comes with a limited amount of discrete I/O that can be configured for various control and
status reporting purposes.
Electrical Specifications
Opto-Isolated Inputs
Item
Value
Unit
Min
Typ
Max
Voltage
3.3
24
24
VDC
Current
20
60
mA
Impedance
1.5
kΩ
Relay Outputs
Item
Value
Unit
Dry Contact
Voltage
24
VDC
Current (each)
2
A
Wet Contact
Voltage
24
VDC (fixed)
Current (each)
2
A
Current (total)
2
A (fixed)
Common Points
All inputs share a single common, which is tied to the TCV e2 ground. All relays share a common point.
By default, the relays are configured in a dry contact configuration. To convert the unit to wet contacts,
c24 VDC (pin 3) to Relay common (pin 2) on the I/O connector. This makes all outputs wet
contacts; the unit does not support configurations with some wet and some dry contacts.
