28 ACH550 Installation, Operation and Maintenance Manual
ACH550-UH
Fault history
For reference, the last three fault codes are stored into parameters 0401, 0412,
0413. For the most recent fault (identified by parameter 0401), the drive stores
additional data (in parameters 0402…0411) to aid in troubleshooting a problem. For
example, parameter 0404 stores the motor speed at the time of the fault.
1002 RESERVED
(Obsolete)
1003
PAR AI SCALE Parameter values are inconsistent. Check for any of the following:
• 1301
AI 1 MIN > 1302 AI 1 MAX.
• 1304
AI 2 MIN > 1305 AI 2 MAX.
1004
PAR AO SCALE Parameter values are inconsistent. Check for any of the following:
• 1504
AO 1 MIN > 1505 AO 1 MAX.
• 1510
AO 2 MIN > 1511 AO 2 MAX.
1005
PAR PCU 2 Parameter values for power control are inconsistent: Improper motor
nominal kVA or motor nominal power. Check for the following:
• 1.1 <
(9906 MOTOR NOM CURR * 9905 MOTOR NOM VOLT * 1.73 / P
N
) < 3.0
•Where: P
N
= 1000 * 9909 MOTOR NOM POWER (if units are kW)
or P
N
= 746 * 9909 MOTOR NOM POWER (if units are HP, e.g. in US)
1006
EXT ROMISSING Parameter values are inconsistent. Check for the following:
• Extension relay module not connected and
• 1410…1412
RELAY OUTPUTS 4…6 have non-zero values.
1007
PAR
FBUSMISSING
Parameter values are inconsistent. Check for and correct:
• A parameter is set for fieldbus control (e.g. 1001
EXT1 COMMANDS = 10
(
COMM)), but 9802 COMM PROT SEL = 0.
1008
PAR
PFAWOSCALAR
Parameter values are inconsistent – 9904 MOTOR CTRL MODE must be = 3
(
SCALAR: SPEED), when 8123 PFA ENABLE is activated.
1009
PAR PCU1 Parameter values for power control are inconsistent: Improper motor
nominal frequency or speed. Check for both of the following:
•1 <
(60 * 9907 MOTOR NOM FREQ / 9908 MOTOR NOM SPEED < 16
• 0.8 <
9908 MOTOR NOM SPEED /
(120 * 9907
MOTOR NOM FREQ / Motor Poles) < 0.992
1010
PAR PFA
OVERRIDE
Both the override mode and PFA are activated at the same time. These
modes are mutually incompatible, because PFA interlocks cannot be
observed in the override mode.
1011
PAR OVERRIDE
PARS
Overeride is enabled, but parameters are incompatible. Verify that 1701 is
not zero, and (depending on 9904 value) 1702 or 1703 is not zero.
1012
PAR PFA IO 1
IO configuration is not complete – not enough relays are parameterized to
PFA. Or, a conflict exists between Group 14, parameter 8117,
NR OF AUX
MOT, and parameter 8118, AUTOCHNG INTERV.
1013
PAR PFA IO 2
IO configuration is not complete – the actual number of PFA motors
(parameter 8127,
MOTORS) does not match the PFA motors in Group 14 and
parameter 8118
AUTOCHNG INTERV.
1014
PAR PFA IO 3
IO configuration is not complete – the drive is unable to allocate a digital
input (interlock) for each PFA motor (parameters 8120
INTERLOCKS and
8127
MOTORS).
Fault
Code
Fault Name In
Panel
Description and Recommended Corrective Action
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