3-6
3.3
Specifications of control panel
Table 3-3 Specifications of control panel
Item
Specifications 1
Specifications 2
Control panel model
BQNXC
Operation mode
Automatic alternate/automatic alternate parallel
0.4 to 3.7 kW: ACS resin (light gray/material color) +
steel plate (highly corrosion-resistant hot-dip plating)
Material and external color of casing
5.5, 7.5 kW: steel plate (Munsell 5Y7/1
semigloss/baking finish)
Single-phase 200/200-220 V (50/60 Hz)
0.4 to 1.1 kW
Output Range
Three-phase 200/200-220 V (50/60 Hz)
0.4 to 7.5 kW
Ground fault interrupter
Individual pump systems
S
Power-factor correcting reactor (DCR)
Individual pump systems
㸫
S
Motor protection
㸫
Inverter (electronic thermal protection)
Double receiver tank circuit
Can be switched on the operation panel
S
Inflow solenoid valve circuit
Can be operated on the operation panel
S
Cir
cuit
configura
tion
Electrode 5P circuit
㸫
S
Dry-run prevention
㸫
S
Automatic switching upon failure
㸫
S
Pump continuous operation prevention function
㸫
S
Pump operation time equalization function
㸫
S
Freeze-proof operation function
㸫
O
External stop signal (interlock) available
a/b-contact available
S
Buzzer stop timer setting
1 to 60 min,
, no buzzer
S
Full/low water alarm automatic recovery setting
㸫
S
Inflow solenoid valve automatic alternation setting
㸫
S
Inspection mode
㸫
S
Alarm buzzer
㸫
S
Buzzer stop switch
㸫
S
Functio
ns
Energy-saving operation setting
㸫
S
Power
㸫
S
Operation (for each pump)
㸫
S
Block (for each pump)
㸫
S
Indi
cato
r
lig
h
t
Alarm (collective)
㸫
S
Discharge pressure
Unit: m
H
2
O S
Power voltage
Unit: V
S
Operation current (for each pump)
Unit: 0.1 A
S
Operation frequency (for each pump)
Unit: 0.1 Hz (only automatic)
S
Cumulative operation time (for each pump)
Unit: Hour
S
Cumulative number of starts (for each pump)
Unit: times
S
Number of starts time of the unit
Number of starts on the previous day
S
Alarm log
5 latest alarms
S
Interlocking in operation
㸫
S
Various indi
ca
tion
s
Freeze-proofing in progress
㸫
O
Receiver tank full
No: E001
S
Receiver tank low
No: E002
S
Dry-run prevention
No: E003
S
Electrode failure
No: E004
S
Start frequency failure
No: E006
S
Pressure transmitter 1 failure
No: E051
S
Control panel high temperature
No: E070
O
EEPROM error
No: E080
S
Overload (for each pump)
No: E#01
S
Discharge pressure abnormal drop (for each pump)
No: E#02
S
Electric leak (for each pump)
No: E#03
S
High temperature (for each pump)
No: E#04
S
Flow switch failure (for each pump)
No: E#05
S
Overcurrent (for each pump)
No: E#11
S
Overvoltage (for each pump)
No: E#12
S
Anti-stall (for each pump)
No: E#14
S
Inverter overload (for each pump)
No: E#15
S
Open-phase output (for each pump)
No: E#16
S
Inverter overheat (for each pump)
No: E#17
S
Inverter communication failure (for each pump)
No: E#18
S
Inverter trouble 1 (for each pump)
No: E#19
S
Indi
catio
ns on
co
ntr
ol panel
Alarm indi
ca
tion
s
Inverter trouble 2 (for each pump)
No: E#20
S
Power for alarm
Power voltage
S
Freeze-proof heater output
Power voltage
O
Inflow solenoid valve output
Power voltage
S (Normally open/closed type available)
Operation signal
No-voltage a-contact
S (for each)
External
outpu
t
Error signal
No-voltage a-contact
S (5 points: patterns 0 to 4)
“S” indicates standard features, and “O” indicates optional features.
*1
Power voltage and operation current values are estimated values. There is an error of approximately 10% with
respect to the full scale.
*2
“E006” and “E#04” can be disabled using settings. Refer to “7.5 Parameter setting.”
*3
The character “#” is replaced by the corresponding pump number.
*4
The open-phase output error is detected by only the units with the rated output of 5.5 kW or more.
*5
For the patterns to output error signals using external relays, refer to “7.5 Parameter setting.”
