Shenzhen Hpmont Technology Co., Ltd. Chapter 3 Electrical Installation
HD3N-TC Series Inverter User Manual V1.0 ―13―
Control terminal Description
DI1 - DI6 Digital input
Programmable bipolar optional input signal, compatible with DC/AC
input signal.
• Input voltage: 15VDC - 56VDC, compatible with 24VDC / 36VDC /
48VDC
• Input voltage: 12VAC - 54VAC, compatible with 36VAC / 48VAC
• Input impetance 6.2kΩ
P24, COM Digital power supply
Digital input use +24V power supply, max. output current is 200mA
• COM is isolated to CME
SEL
Digital input common
terminal
SEL and P24 are connected by default
• Disconnect SEL and P24 when use external power to drive DI
DO1, CME Digital output
Programmable optical-couple isolation
• DO1, DO2: open collector output; Output voltage: 0 - 30VDC,
max-output current 50mA
• DO2 can be selectable for pulse frequency output, max. frequency
10kHz
CME is isolated to COM, short-connected to COM by default
• Disconnect CME and COM when they are isolating output
DO2, COM Digital output
R1A/R1B/R1C Relay output
Programmable output, contact rating: 250VAC/3A or 30VDC/1A
• R1B, R1C: normally closed; R1A, R1C: normally open
Note:
Limit the current within 3A if relay terminal is to connect to AC 220V voltage signal.