TECHTOP TD350 - Programmable Extension Card (EC-PC502-00) Function Description

TD350 Series VFD Extension cards
-300-
Category
Label
Name
Function description
Digital
input/output
S5—COM
Digital input 1
1. Internal impedance: 3.3 kΩ
2. Power input range: 12–30 V
3. Bidirectional input terminal
4. Max. input frequency: 1 kHz
S6—COM
Digital input 2
S7—COM
Digital input 3
S8—COM
Digital input 4
Y2—CME
Digital output
1. Switch capacity: 200 mA/30 V
2. Output frequency range: 0–1 kHz
3. The terminals CME and COM are
shorted through J3 before delivery.
Relay
output
R03A
NO contact of
relay 3
1. Contact capacity: 3A/AC 250 V, 1 A/DC
30 V
2. Do not use them as high-frequency
digital outputs.
R03B
NC contact of
relay 3
R03C
Common contact
of relay 3
R04A
NO contact of
relay 4
R04C
Common contact
of relay 4
A.5 Programmable extension card (EC-PC502-00) function description
SW1 is the start/stop switch of the programmable expansion card. CN1 contains terminals PE, 485-,
485+, GND, AI1, and AO1, and a selection jumper resides on the next. "AI" and "AV" are the current
type input selection and voltage type input selection of AI1, and they can be selected through J2.
"AIO" and "AVO" are the current type output selection and voltage type output selection of AO1, and
they can be selected through J5. "120" indicates 120Ω terminal resistor, and it can connect to J1. By
default, J1 connects to NC, J2 to AV, and J5 to AVO.
The terminals are arranged as follows.
PE
485-
485+
GND
AI1
AO1
COM
COM
PS1
PS2
PS3
PRO2A
PRO1C
PW
24V
PS4
PS5
PS6
PRO1A
PRO2C