3
AMAX-1220/1240 Series User Manual
Chapter 1
Introduction
1.2.2
Encoder input
1.2.3
Pulse/Direction output
1.2.4
Digital input
1.2.5
Digital output
Item
Description
ECA
ECB
ECZ
Type
Two terminal, opto-isolated
Encoder Pulse Input Type Quadrature (A/B phase) or Up/Down (CW/CCW)
Input voltage
0: (V+ - V-) < 1V
DC
1: (V+ - V-) > 3.5V
DC
Max. input voltage
|V+ - V-| < 15V
DC
Max. input frequency
3MHz x1, x2, x4 (A/B phase only)
Protection
2,500V Isolation
Item
Description
CW\PULS
CCW\DIR
Type
Two terminal, opto-isolated
Output voltage
0 ~ 4 V
Max. output voltage
4 V
DC
(1: min 2V
DC
, 0: MAX 0.7V
DC
)
The output voltage will drop depend on the output
current
Max. output frequency
5MHz
Item
Description
ORG
LMT+, LMT-
INPOS
ALM
RDY
LTC
SD
DI0 - DI7
Type
One terminal, opto-isolated
Input voltage
0: Vin < 3V
DC
1: Vin > 10V
DC
Input Current
4.2 mA @ 24 V
Max. Input voltage
30 V
DC
Max. Input delay time
100 µs
Protection
2,500 V Isolation
Item
Description
BREAK
ALMCLR
SRVON
ERC
COMP
DO0 - DO7
Type
One terminal, opto-isolated,
Current sink (5 ~ 30 V)
Output voltage
0: Vo < 0.8 V
DC
1: Vo <= Vio
Max. output voltage
30 V
DC
Max. sink current
200 mA per channel
Max. Output delay time
100 µs (BREAK, ALMCLR, SRVON, ERC)
250 µs (DO0 - DO7)
Protection
2,500 V Isolation
