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(3) LD62D (differential input sink output type)
I/O
classification
Internal circuit
Terminal
number
*1
Signal name Operation
Input voltage
(guaranteed
value)
Operating
current
(guaranteed
value)
CH1 CH2
Input
A20 A14 Phase A pulse input
EIA Standard RS-422-A Line receiver
(AM26C32 (manufactured by Texas
Instruments Incorporated) or equivalent)
The line receiver specifications are as follows:
• VIT + Differential input on voltage
(H level threshold voltage) 0.2V
• VIT - Differential input off voltage
(L level threshold voltage) - 0.2V
• Vhys hysteresis voltage (VIT +- VIT -) 60mV
(Current type line driver cannot be used.)
B20 B14 Phase A
pulse input
A19 A13 Phase B pulse input
B19 B13 Phase B pulse input
A18 A12 Preset input 24V
On 21.6 to 26.4V 2 to 5mA
Off 5V or less 0.1mA or less
B18 B12 Preset input 12V
On 10.8 to 13.2V 2 to 5mA
Off 4V or less 0.1mA or less
A17 A11 Preset input 5V
On 2.5 to 5.5V 2 to 5mA
Off 1V or less 0.1mA or less
B17 B11 PRSTCOM
Response
time
Off to on
0.5ms or less
On to off
1ms or less
A16 A10 Function start input 24V
On 21.6 to 26.4V 2 to 5mA
Off 5V or less 0.1mA or less
B16 B10 Function start input 12V
On 10.8 to 13.2V 2 to 5mA
Off 4V or less 0.1mA or less
A15 A09 Function start input 5V
On 2.5 to 5.5V 2 to 5mA
Off 1V or less 0.1mA or less
B15 B09 FUNCCOM
Response
time
Off to on
0.5ms or less
On to off
1ms or less
+5V +5V
27kΩ
1/10W
4.7kΩ
1/10W
100Ω
1/2W
4.7kΩ
1/10W
27kΩ
1/10W
A20,A14
B20,B14
Line
receiver
Digital
isolator
+5V +5V
27kΩ
1/10W
4.7kΩ
1/10W
100Ω
1/2W
4.7kΩ
1/10W
27kΩ
1/10W
A19,A13
B19,B13
Line
receiver
Digital
isolator
1kΩ
1/10W
10kΩ
1/3W
1/10W
680Ω
1/10W
A18,A12
B18,B12
A17,A11
B17,B11
5.6kΩ
1kΩ
1/10W
10kΩ
1/3W
5.6kΩ
1/10W
680Ω
1/10W
A16,A10
B16,B10
A15,A09
B15,B09