IF08CZ10 April, 2019 - 35 -
INTERFACE (cont’d)
Digital Output
There are 10 programmable digital outputs (DO1-10). DO1-4 are photo-coupler outputs and must
be used with 24Vdc. DO1-3 may be connected to an external 24V supply if desired. DO4 is connected the
drive internal 24V supply. The other 6 outputs (DO5-10) are form C relay outputs. These relays can be
programmed to any bit in any word in the drive. The most commonly used bits can be found in the
SSEQ_OUT1-4 words. The word assignment is made via DO1_AS – DO10_AS parameters.
Analog Input
The drive has three general-purpose analog inputs (AIN1-3). They can be configured to any variable in the
drive through assignment of AINn_AS (where n = 1 to 3 ).
As a general-purpose analog input, the standard I/O circuit brd. (XIO) has one general-purpose analog input
(AIN1). Expanded I/O brd. (EXIO) has two additional inputs (AIN2 and AIN3). AIN1 has an option for
current input thru an internal resistor, but AIN2 and 3 are voltage input only.
Each analog input signal is converted to the digital value through a 12-bit A/D converter. A ±10 Vdc input is
converted to counts by software and is stored in the target data register. Since this signal is directly
connected to the control circuit, it is recommended that an isolation transducer be used. The data register,
the gain and the offset are set with the following parameters:
AIN#_AS Target register – set by symbol name
AIN#_GS Gain setting – defines the number of counts for 10V input
AIN#_OS Offset setting – offsets the input
The "#" of each parameter name denotes the AD channel number. The following figure shows the input circuit:
TB2-1
TB2-2
AIN1_TYPE=0
20V
JP1B
AIN1_TYPE=2
4-20mA
JP1A
AIN1 Gain
AIN1_GS
Data destination
AIN1_AS
+
+
Offset
AIN1_OS
XIO, ARND-4045
TB2-19
TB2-20
AIN2 Gain
AIN2_GS
Data destination
AIN2_AS
+
+
Offset
AIN2_OS
Input
Input
TB2-21
TB2-22
AIN3 Gain
AIN3_GS
Data destination
AIN3_AS
+
Offset
AIN3_OS
10V Voltage input only
10V Voltage input only
+
AIN1_TYPE=1
10V
+/-10V
4-20mA
EXIF, PC61910P206A
Analog Input Circuit
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