Position Data Reading By Hold (Hd) Input - NSD Absocoder NCV-40H Series Specifications & Instruction Manual

8-4-3. Position Data Reading by HOLD (HD) Input

The HOLD input signal is used to HOLD position data outputs from the host controller. Either of the
following two position data HOLD formats can be selected.
(1) Transparent format
Position data output updating is stopped by an HOLD input signal from the host controller (PLC, etc.).
The position data should be read at that time.
Updating of the position data is stopped while the HOLD input signal is ON. Position data reading should
be performed after waiting period "t1" following the HOLD input signal is ON.
When the HOLD input signal switches OFF, position data updates are synchronized with the LP output
signal. Next time, the "HOLD input signal" switches ON in order to read the position data, please input
the HOLD input signal after waiting period "t2".
Position data
D0 to D25
ON
HD
OFF
Transparent format
(Factory setting)
Important
The position data output will be all OFF, if the converter is powered ON while the HOLD
input signal is ON. The HOLD input signal must be temporally OFF in order to output
the position data.
t1
DSW1 setting
ON 1 2 3 4 5 6 7 8
Caution when the power supply turns ON
33
t2
t1
0.1ms
t2
0.2ms