Mechanical & Electrical
Installation
2
2.14 Control Circuit Wiring
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 107
Mode
Termi
nals
Name (Default) Function (Signal Level)
Master
Frequency
Reference
RP
Master frequency reference pulse
train input
(Master frequency reference)
• Response frequency: 0 Hz to 32 kHz
• H level duty: 30% to 70%
• H level voltage: 3.5 V to 13.2 V
• L level voltage: 0.0 V to 0.8 V
• Input impedance: 3 kΩ
+V Power supply for frequency setting 10.5 V (allowable current 20 mA maximum)
-V Power supply for frequency setting -10.5 V (allowable current 20 mA maximum)
A1
MFAI1
(Master frequency reference)
Voltage input or current input
Select terminal A1 with DIP switch S1-1 and H3-01 [Terminal A1 Signal
Level Select].
Select terminal A2 with DIP switch S1-2 and H3-09 [Terminal A2 Signal
Level Select]
• -10 V to +10 V/-100% to +100%
• 0 V to 10 V/100% (input impedance: 20 kΩ)
• 4 mA to 20 mA/100%, 0 mA to 20 mA/100% (input impedance: 250 Ω)
A2
MFAI2
(Combined to terminal A1)
A3
MFAI3/PTC input
(Auxiliary frequency reference)
• Voltage input or current input
Select using DIP switch S1-3 and H3-05 [Terminal A3 Signal Level
Select].
– -10 V to +10 V/-100% to +100%
– 0 V to 10 V/100% (input impedance: 20 kΩ)
– 4 mA to 20 mA/100%, 0 mA to 20 mA/100% (input impedance: 250 Ω)
• PTC input (Motor Overheat Protection)
Set DIP switch S4 to “PTC” and set DIP switch S1-3 to “V” to set terminal
A3 for PTC input.
AC Frequency reference common 0 V
E (G) Connecting shielded cable -
■ Output Terminals
Refer to Table 2.21 and Table 2.22 for a list of output terminals and functions.
Table 2.21 Control Circuit Output Terminals
Type Terminal Name (Default) Function (Signal Level)
Fault Relay
Output
MA
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)
MB
N.C. output
(Fault)
MC Digital output common
MFDO
M1
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 (M1 to
M6) because this will decrease the performance life of the relay
contacts. Yaskawa estimates switching life at 200,000 times (assumes 1
A, resistive load).
M2
M3
MFDO
(Zero speed)
M4
M5
MFDO
(Speed agree 1)
M6
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