aerauliqa AD1400A Podręcznik - Strona 16
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11. TROUBLESHOOTING (Modbus)
11.1 Connection parameters
11.2 Modbus Registers - Input Register
These registers are READ-ONLY, and can be read using the function 04 READ INPUT REGISTERS.
Register
Description
Address
3
Measured speed
10
Alarm 1
17
Alarm 2
11.3 Alarm codes/LED status/Troubleshooting
ALARM 1
ALARM 2
VALUE
VALUE
approx. duration)
0
0
1
0
2
0
3
0
4
1
4
32
4
33
4
34
4
49
4
50
4
51
4
113
4
114
4
115
For additional information on Modbus control, contact the manufacturer/technical support.
Protocol
Baud Rate (bps)
Data bits
Parity bits
Stop bits
HVLS Slave Address
Dimension
(Word)
1
1
1
LED BLINKS
(single blink
1 Blink/2s
(1s)
1 Blink/s
Memory error – motor parameters lost
(0.5s)
2 Blink/s
Short circuit – electronics power
(0.25s)
3 Blink/s
Motor synchronization lost – wrong motor
(0.17s)
parameters or electronics damaged
Supply voltage out of range 135Vac÷550Vac (DC
5 Blink/s
bus voltage 190÷780V) only with motor still - not
(0.1s)
Supply voltage above 565Vac (DC bus voltage
5 Blink/s
over 800V) during motor running (instantaneous
Supply voltage below 107Vac (DC bus
5 Blink/s
voltage below 150V) during motor running
5 Blink/s
"Restart on the fly" failed
4 Blink/s
U phase voltage missing/disconnected
(0.13s)
(or wrong motor parameters)
V phase voltage missing/disconnected
4 Blink/s
(or wrong motor parameters)
W phase voltage missing/disconnected
4 Blink/s
(or wrong motor parameters)
6 Blink/s
Electronics temperature over 85°C
(0.08s)
7 Blink/s
Motor windings temperature over 125°C
(0.07s)
no Blink
Short circuit on Pt100 motor temperature probe
MODBUS/RTU over RS485
9600
8
none
2
1
Data
U.M. (data on
Type
the register)
ushort
0.1rpm
ushort
-
ushort
-
ALARM DESCRIPTION
POSSIBLE CAUSE
No error
module damaged
running
value)
(instantaneous value)
16
Example
Register value → Real value
490 → 49rpm
See table (§ 11.3)
See table (§ 11.3)
TROUBLESHOOTING
-
Contact manufacturer/technical support
Board damaged – Contact manufacturer/technical
support
Check motor windings.
If motor windings OK (all 3 windings have same
resistance), contact manufacturer/technical
support.
If motor windings damaged (open/short circuit),
replace motor
Check power supply voltage /
check power supply wiring
Check power supply voltage /
check power supply wiring
Check power supply voltage /
check power supply wiring
The drive couldn't catch the impeller – power
cycle/retry
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
Check power supply/wiring. If wiring OK, contact
manufacturer/technical support
Check if operating temperature is above rated
maximum operating temperature.
Check mechanical load for anomalies (e.g. difficult
turning)
Check if operating temperature is above rated
maximum operating temperature.
Check mechanical load for anomalies (e.g. difficult
turning)
Check temperature probe wiring – detects
temperature probe manumission