SY6600 Vector Control Inverter User Manual
22
3.8 Functions of Control Circuit Terminals
Type
Terminal
symbol
Terminal function
description
Technical specification
Terminal
485
485+
Positive end of 485
differential signal
Rate: 4800/9600/19200/38400/57600bps
Up to 32 sets of equipment can be paralleled. Relay
shall be used if the number exceeds 32.
Maximum distance: 500m (adopt standard twisted
shielding cable)
485−
Negative end of 485
differential signal
GND
Shielding grounding of 485
communication
Internal isolated with COM
Operation
panel
CN2
port of operation panel
When used for communication connection with host
computer, it is the same as terminal 485.
The maximum distance is 15m for the communication
connection of operation panel
Digital input
+24V
+24V
24V±10%, internal isolated with GND,
Maximum load: 200mA, with overload and short
circuit protection
X1
～
X5
Multi-functional input
terminals 1 ~ 6
Input specification: 24VDC,5mA
Frequency range: 0~200Hz
Voltage range: 24V±20%
CM
+24V grounding
Internal isolated with GND
Digital
output
Y1
Open collector output
Voltage range: 24V±20%, maximum input current:
50mA
CM
Open collector output
common end
Internal isolated with GND
Analog
input
+10V
Analog input reference
voltage
10V ±3%, internal isolated with COM,
Maximum output current: 10mA, with short circuit
and overload protection
AI1
Analog input channel 1
0~10V: Input impedance 20kΩ, maximum input
voltage : 15V
Resolution: 10 bits (0.025%)
AI2
Analog input channel 2
0~20mA: Input impedance 500Ω, maximum input
current: 30mA
Resolution: 10 bits (0.025%)
GND
Analog grounding
Internal isolated with COM
Analog
output
AO1
Analog output 1
0~10V: allowable output impedance ≥10kΩ
Output precision: 2%, resolution: 10 bits (0.1%)
with short circuit protection function,
GND
Analog grounding
Internal isolated with COM
Relay
output
A1/B1/C1
Relay output
A1
－
B1
：
Normally open
C1
－
B1
：
Normally closed
Contact capacity: 250VAC/1A, 30VDC/1A
