11.4 Option
11-81
Chapter 11 SELECTING PERIPHERAL EQUIPMENT
[9] Digital input interface card (OPC-G1-DI)
The digital input interface card has 16 digital input terminals (switchable between SINK and SOURCE).
Mounting this interface card on the FRENIC-MEGA enables the user to specify frequency commands with
binary code (8, 12, 15, or 16 bits) or BCD (4-bit Binary Coded Decimal) code.
Applicable ports
This interface card can be connected to any one of the three option connection ports (A-, B-, and C-ports)
on the FRENIC-MEGA.
Applicable ROM version
This interface card is applicable to inverters with a ROM version G1S10500 or later.
Electrical specifications
Table 11.4-51
Specifications
Terminal
Signal
Item
Min. Max.
ON level 0 V 2 V
Operating
voltage
(SINK)
OFF level 22 V 27 V
ON level 22 V 27 V
Operating
voltage
(SOURCE)
OFF level 0 V 2 V
Operating current at ON (Input
voltage is at 0 V)
2.5 mA 5 mA
[I1] to [I16]
Allowable leakage current at OFF - 0.5 mA
Terminal functions
Table 11.4-52
Terminal
Signal
Name Functions
[I1] to [I16]
Digital inputs 1 to
16
(1) These digital inputs specify a frequency command
according to the settings made by function codes o19 and
o20. For details, refer to the "Configuring inverter's
function codes" on the next page.
(2) SINK/SOURCE is switchable with SW1.
[M1]
External power
supply input
Power input terminal from the external device for the interface
card (+22 to +27 VDC)
[CM] Digital common
Common terminals for digital input signals
(Equipotent with the inverter's terminal [CM])
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