3.5 Control Circuit Wiring
58 YASKAWA SIEPYEULA5001C LA500 Technical Manual
Type Terminal Name (Default) Function (Signal Level)
Master
Frequency
Reference
RP
Master frequency reference pulse train input
(Master frequency reference)
• Response frequency: 0 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
AC Frequency reference common 0 V
■ Output Terminals
Refer to Table 3.5 and Table 3.6 for a list of Output terminals and functions.
Table 3.5 Control Circuit Output Terminals
Type Terminal Name (Default) Function (Signal Level)
Digital Outputs
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
Multi-function Photocoupler
Outputs
P1
• P1-PC
Multi-function photocoupler
output 1
(Drive Ready)
• P2-PC
Multi-function photocoupler
output 2
(Brake Control)
• Photocoupler output
• 48 V, 2 mA to 50 mA
P2
PC
Table 3.6 Control Circuit Monitor Output Terminals
Type Terminal Name (Default) Function (Signal Level)
Monitor Output
AM
Analog monitor output
(Output speed)
0 V to 10 V/0% to 100%
AC Monitor common 0 V
■ External Power Supply Input Terminals
Refer to Table 3.7 for a list of the functions of the external power supply input terminals.
Table 3.7 External Power Supply Input Terminals
Type Terminal Name (Default) Function
External Power Supply Input
Terminals
PS 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
AC External 24 V power supply ground 0 V
When you use an external 24 V power supply, the drive detects an alarm as shown in Table 3.8 if you set o2-23
[External 24V Powerloss Detection] and o2-26 [Alarm Display at Ext. 24V Power] for the main circuit power
supply. Set the alarm display as necessary.
Table 3.8 Power Supply and Alarm Display
Main Circuit Power Supply External 24 V Power Supply
o2-23
[External 24V Powerloss
Detection]
o2-26
[Alarm Display at Ext. 24V
Power]
Alarm Display
ON ON - -
-
ON OFF 0 [Disabled] -
-
1 [Enabled] - L24v [Loss of External Power 24
Supply]
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