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Dimmer Control Module
~ NEW ~
Model: LC-221
  • Power Relay Output
  • Isolated AC Digital Input
  • Isolated Analog Output For Control Dimming Ballast
  • Supports Modbus RTU and DCON Protocols
  • 2500 VDC Intra-Module Isolation
  • +/-4 kV ESD Protection
  • Tiny form-factor with easy screw mounting
The LC-221 is an easy-to-use dimming ballast control module that requires no specialist skills to install and operate. It provides two methods of controlling the brightness of fluorescent lamps via a dimmer, either via digital input or a host controller. The digital input can directly control the light value from 10% to 100% luminous fl ux in sequence, without requiring a remote host controller. 4 kV ESD protection and 2500 VDC intra-module isolation are also provided. When required, communication with the LC-221 is programmable based on the Modbus RTU protocol, and an added benefit is that different addresses can be set for Modbus RTU communication via hardware configuration.
Analog Output
Channels 1
Type 0 ~ 20 mA, 4 ~ 20 mA, 0 ~ 10 V, 1 ~ 10 V
Resolution 12-bit
On Level Close to GND
Accuracy +/-0.1% of FSR
DA Output Response Time 10 ms
Voltage Output Capability 20 mA
Current Load Resistance 450 Ω
Digital Input
Channels 1
Type Wet
On Voltage Level 80 VAC ~ 240 VAC
Off Voltage Level 30 VAC Max.
Input Impedance 68 KΩ, 1 W
Relay Output
Channels 1
Type Power Relay, Form A (SPST N.O.)
Operating Voltage 250 VAC or 30 VDC
Max. Load Current 16 A (Res. load)
Operate Time 15 ms Max.
Release Time 5 ms Max.
Mechanical Endurance 10,000,000 OPS
Electrical Endurance 50,000 OPS
Power-on and Safe Value Yes, programmable
Interface RS-485
Format N, 8, 1
Baud Rate 1200 ~ 115200 bps
Protocol DCON, Modbus RTU
Node Addresses 64 ~ 95
Connector RJ-11 (6P4C or 6P6C)
LED Display
Power 1 LED as Power Indicator
Intra-module Isolation, Field-to-Logic 2500 VDC
EMS Protection
ESD (IEC 61000-4-2) ±4 kV contact for each Terminal
±4 kV Air for Random Point
EFT (IEC 61000-4-4) ±4 kV for Power
Reverse Polarity Protection Yes
Powered from Terminal Block Yes, 10 ~ 30 VDC
Consumption 1.4 W Max.
Dimensions (W x L x H) 52 mm x 98 mm x 27 mm
Installation Screw Mounting
Operating Temperature -25°C ~ +75°C
Storage Temperature -30°C ~ +80°C
Humidity 10 ~ 95% RH, Non-condensing
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