Delta Tau PMAC2A-PC/104 ユーザーズマニュアル

Option 12 permits the installation of two channels of on-board analog-to-digital converters with ±10V 
input range and 12-bits resolution.  The key component installed with this option is U20. 

Acc-1P provides four additional channels axis interface 
circuitry for a total of eight servo channels, each including: 

• 

12-bit ±10V analog output 

• 

Pulse-and-direction digital outputs 

• 

3-channel differential/single-ended encoder input 

• 

Four input flags, two output flags 

• 

Three PWM top-and-bottom pairs (unbuffered) 

Option 1 provides the following ports on the Acc-1P axes 
expansion board for digital I/O connections.  

 

PMAC2A PC/104 Base Board shown  

stacked with the Acc-1P axes 

• 

Multiplexer Port:  This connector provides eight input lines and eight output lines at TTL levels.  
When using the PMAC Acc-34x type boards these lines allow multiplexing large numbers of inputs 
and outputs on the port.  Up to 32 of the multiplexed I/O boards may be daisy-chained on the port, in 
any combination.  

• 

I/O Port:  This port provides eight general-purpose digital inputs and eight general-purpose digital 
outputs at 5 to 24Vdc levels.  This 34-pin connector was designed for easy interface to OPTO-22 or 
equivalent optically isolated I/O modules when different voltage levels or opto-isolation to the 
PMAC2A PC/104 is necessary. 

• 

Handwheel port: this port provides two extra channels, each jumper selectable between encoder input 
or pulse output. 

Option 2 permits the installation on the Acc-1P of two 
channels of analog-to-digital converters with ±10V input 
range and 12-bits resolution.  The key component installed 
with this option is U20.