TR-HT2xx LED Controller - User Manual
8
Digital inputs and outputs
The TR-HT controller has four digital inputs (through the trigger input
connections), four digital outputs, and eight virtual outputs (see
). All outputs operate independently and are configured
separately. Their configuration is very flexible to provide solutions for a
wide variety of timing problems.
The configuration can be saved in non-volatile memory so that the TR-HT
resumes operation after a power cycle.
8.1
Input modes
All inputs are general purpose trigger inputs except for IP3 and IP4, which
can be used for an encoder as well as for general inputs.
8.1.1
Encoder operation
The TR-HT supports two types of encoder; one wire and two wire (see the
table below). This can be configured using the
ZE
command, or through
the TR-HT's web pages.
Mode
Connections
Operation
Maximum
frequency
En1
one wire
encoder
IP3 is QEA
Simple encoder
provides position
information. All
movement is assumed
to be forward.
700kHz
EN2
two wire
encoder
IP1 is QEA
IP2 is QEB
Quadrature encoder
provides position and
direction information.
200kHz
For 2 wire encoders, the TR-HT correctly handles reversed movement.
When the belt is in a reversed position:
triggers for PEt and PEE modes (see
) are
ignored.
output pulses in PtE, Pet and PEE modes are not duplicated.
—
30
—