Panasonic minas a series Operating Manual page 40

AI
AI Analogue Commend Input
• There are three analogue command inputs of
SPR/RTQR (14 pins), CCWTL (16 pins) and
CWTL (18 pins).
• The maximum permissible input voltage is ±0V.
For the input impedance of these inputs, see
the right figure.
• If you make a simplified circuit comprising a vari-
able resistor (VR) and resistor (R), refer to the
right figure.
When the variable range of each input is
- 10V to + 10V, the VR should be a B type
resistor of 2kΩ (min.1/2W). The R should be
200Ω (min.1/2W).
• The A/D converters for these inputs should
have the following resolution.
1) ADC1 (SPR and TRQR)
2) ADC2 (CCWTL and CWTL)
SPR/TRQR
µ12V
R
VR
∂12V
R
: 16 bits (including one bit for sign)
: 10 bits (including one bit for sign
- 39 -
20K
14
∂
µ
GND
15
∂
10K
16
CCWTL
µ
10K
GND
17
∂
10K
18
CWTL
µ
10K
ADC
1
ADC
2