TECHTOP TD350 - Page 323

TD350 Series VFD Extension cards
-318-
PE
AO+
BO+
ZO+
EX+
SI+
CO+
A2+
B2+
Z2+
PWR
GND
AO-
BO-
ZO-
EX-
SI-
CO-
A2-
B2-
Z2-
GND
Indicator definition
Indicator No.
Definition
Function
LED1
State indicator
On: The extension card is establishing a
connection with the control board.
Blinks periodically: The extension card is properly
connected to the control board (the period is 1s,
on for 0.5s, and off for the other 0.5s).
Off: The extension card is disconnected from the
control board.
LED2
Disconnection indicator
Off: The encoder is disconnected.
On: The encoder signals are normal.
Blinks: The encoder signals are not stable.
LED3
Power indicator
On: The control board feeds power to the PG
card.
The EC-PG504-00 extension card can be used in combination with a resolver of excitation voltage 7
Vrms. It is user-friendly, adopting spring terminals.
EC-PG504-00 terminal function description
Label
Name
Function description
SI+
Encoder signal input
Recommended resolver transformation ratio: 0.5
SI-
CO+
CO-
EX+
Encoder excitation
signal
1. Factory setting of excitation: 10 kHz
2. Supporting resolvers with an excitation voltage
of 7 Vrms
EX-
A2+
Pulse setting
1. Differential input of 5 V
2. Response frequency: 200 kHz
A2-
B2+
B2-
Z2+
Z2-
AO+
Frequency-divided
output
1. Differential output of 5 V
2. Frequency-divided output of resolver simulated
A1, B1, and Z1, which is equal to an incremental
PG card of 1024 pps.
3. Supporting frequency division of 1–255, which
can be set through P20.16 or P24.16
4. Max. output frequency: 200 kHz
AO-
BO+
BO-
ZO+
ZO-