nader NDW3 Series Manual page 62

4.4.9 Accessory monitoring unit NWDF1-AM
 After installed with the accessory monitoring unit, the circuit breaker can perform the online
monitoring of coil break for the shunt release, closing electromagnet, undervoltage release and
energy storage motor, to ensure normal operation of the circuit breaker.
 For the communication protocol details, see the NWDF1-AM accessory monitoring module part
in the NDT2920191 "Operation Manual of NWDF1 Series Frame Electrical Accessories".
 See the table below for technical parameters
Working power
supply
Communication
Protection class
Dimensions
Installation
mode
Internal & confidential file
File No.:NDT2920202
Outline and Installation Dimension Diagram of 6-
channel Programmable Output Module
Nominal voltage
Allowable input range
Isolation voltage
Reverse polarity effects
Voltage mismatch
Voltage sag
interface
Optional modbus
address
Baud rate
Parity bit
Isolation voltage
Number of modules for
a single bus
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230VAC
180V~270VAC
1000Vrms
Without polarity effects
Voltage above 260VAC may cause the
permanent damage of the module
Sag for 10ms can still work without
interruption
Standard RS485, 2-wire; Modbus RTU
2~127
9600
CRC check, without support for parity
1000Vrms
32
IP20
90 × 72 × 58.5mm
Installed with a 35mm standard guide rail
File Version:4