3.5 Control Circuit Wiring
88 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
■ Output Terminals
This chapter contains a list of output terminals and functions.
Table 3.7 Fault Relay Output
Terminal Name (Default) Function (Signal Level)
1NO
N.O. output
(Fault) • Relay output
• 30 Vdc, 10 mA to 1 A
• 250 Vac, 10 mA to 1 A
• Minimum load: 5 V, 10 mA (Reference value)
1NC
N.C. output
(Fault)
1CM Digital output common
Table 3.8 MFDO
Terminal Name (Default) Function (Signal Level)
2NO
MFDO
(During run)
• Relay output
• 30 Vdc, 10 mA to 1 A
• 250 Vac, 10 mA to 1 A
• Minimum load: 5 V, 10 mA (Reference value)
Note:
Do not set functions that frequently switch ON/OFF to MFDO (2NO to 4CM) because this will decrease the
performance life of the relay contacts. The manufacturer estimates switching life at 200,000 times (assumes 1
A, resistive load).
2CM
3NO
MFDO
(Zero speed)
3CM
4NO
MFDO
(Speed agree 1)
4CM
Table 3.9 Monitor Output
Terminal Name (Default) Function (Signal Level)
PO
Pulse train output
(Output frequency)
32 kHz (maximum)
Refer to “Pulse Train Output” on page 93 for more information.
AO1
Analog monitor output 1
(Output frequency)
Select voltage or current output.
• 0 V to 10 V/0% to 100%
• -10 V to +10 V/-100% to +100%
• 4 mA to 20 mA (receiver recommended impedance: 250 Ω)
Note:
Select with jumper switch S5 and H4-07 [AO1 Signal Level Select] or H4-08 [AO2 Signal Level Select].
AO2
Analog monitor output 2
(Output current)
A0V Monitor common 0 V
■ External Power Supply Input Terminals
This chapter contains a list of the functions of the external power supply input terminals.
Table 3.10 External Power Supply Input Terminals
Terminal Name (Default) Function
E24V External 24 V power supply input
Supplies backup power to the drive control circuit, keypad, and option board.
21.6 VDC to 26.4 VDC, 700 mA
A0V External 24 V power supply ground 0 V
■ Serial Communication Terminals
This chapter contains a list of the functions of serial communication terminals and functions.
Table 3.11 Modbus Communication
Terminal Terminal Name Function (Signal Level)
RS485+ Communication input/output (+)
Modbus communications
Use an RS-485 cable to connect the drive.
Note:
Set DIP switch S2 to ON to enable the termination
resistor in the last drive in a Modbus network.
• RS-485
• Modbus communication protocol
• Maximum 115.2 kbps
RS485- Communication output (-)
A0V Signal ground
0 V
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