Daiichi Electronics SQLC-72L, Instruction Manual

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SQLC-216-212
31
Item Specification, Performance
Alarm
output
Current
Detection factor Upper 1, Upper 2, Lower. (Set individually)
Function
Measurement value ≧ Upper setting value, alarm display and output.
(OR output of each phase)
Measurement value ≦ Lower setting value, alarm display and output.
(OR output of each phase)
Setting range 1...200 ％ of the rated. (1 ％ step), OFF
Lower detection
exclude function
Lower detection is excepted by current 0 A.
ON (Exception：Without detection),
OFF (Without exception：Detection)
Hysteresis 2 ％ (％ to rating)
Demand
current
Demand
power
Detection factor Upper 1, Upper 2. (Set individually)
Function
Demand measurement value ≧ Alarm display and output with upper setting
value (OR output of each phase)
Setting range 5...200 ％ of the rated. (1 ％ step), OFF
Hysteresis 2 ％ (％ to rating)
Leakage
current
Detection factor Sensed current 1, Sensed current 2. (Set individually)
Function
A leakage current measurement value reaches in a sensed current, and an
alarm will be carried out if the operating time passes.
Sensed current 50 ％ ＜ 100 ％ (％ to rated sensed current value)
Rated sensed
current value
0.05 A / 0.1 A / 0.2 A / 0.4 A / 0.8 A
Operating time Time-delay type (0.1 s ＜ 2 s)
Control
input
Specifica-
tion
Input point 1ch
Input rating Non-voltage contact input（24 V DC, 10 mA）
Minimum operation
pulse width
300 ms, Continuation applying is possible.
Function setting Setting to the following function is possible.
Function
Alarm output reset
All the outputs of an alarm output (when a return method is manual return)
are reset.
Maximum / minimum
value reset
All maximums and minimum values are reset.
ALL reset An alarm output, and maximum/minimum value are reset.
State input The state of control input is outputted to a MODBUS communication output.
Communication output
Output 1ch
Communication
system
RS-485 Half-duplex two-wire system, asynchronous communication method.
Protocol
MODBUS RTU mode (The details of the protocol, please refer to the
communication specification)
Bit rate 4800 bps / 9600 bps / 19200 bps / 38400 bps
Transmission code NRZ
Start bit 1 bit
Data bit 8 bit
Parity Nothing / Even number / Odd number
Stop bit 1 bit / 2 bit
Transmission
character
Binary
Cable length 1000 m (Max.)
Address 1...247 (Max. connectable：31 units)
Error detection CRC-16 (X
16
＋X
15
＋X
2
＋1)
Termination
resistor
100 Ω, 1 W, Install to the terminal. (Accessory)
Test function
Communication
output Without any input, and outputs measured value of communication output.
0, 50, 100％, SEQ output. SEQ：Send the sequence number
Contact
output
Pulse
output Without any input, and outputs an pulse output (1...2 individual).
1s / 1pulse (pulse width：250 ms)
Alarm
output The ON / OFF the alarm output without adding input.
Switching at the front switch
Input wiring
Displays the input wiring state and voltage phase state (positive phase,
negative phase) and each phase of the power value
Control input To view the state of the control input (DI)