Alarm Display And Explanation - Saftronics FP5/GP5 Series Technical Manual

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8.2

Alarm Display and Explanation

Alarms do not activate fault contact outputs and the Inverter returns to its former operation status automatically when the cause is
removed. The following table explains the different types of alarms.
Alarm Display Contents
U
Undervoltage detection
Blinking
O
OV during stop
Blinking
H 1
O
Heatsink overheating
Blinking
L 3
O
Overtorque detection
Blinking
External baseblock
Blinking
E F
Simultaneous FWD/REV
RUN commands
Blinking
C A L L
MEMOBUS transmission
waiting
Blinking
H 3
O
Inverter overheat pre-alarm
Blinking
C E
MEMOBUS transmission
error
Blinking
P E 1
Inverter kVA setting fault
O
Multi-function contact input
P E 3
O
setting error
P E 5
V/f data setting error
O
P E 6
Constant setting error
O
Firmware – S2011 and S3012
Revision: 1 (9/98)
Table 21 Alarm Display and Explanation
Undervoltage has been detected.
Main circuit DC voltage exceeds the overvoltage detection level while the Inverter
output is OFF.
Under condition of heatsink temperature > [OH1 detection level (approximately 95°C)],
continuous operation at OH1 detection is selected.
Under condition of Inverter output current > n075 (overtorque detection level),
continuous operation at overtorque detection is selected.
External baseblock command is input from control circuit terminal.
Both FWD and REV RUN commands are input simultaneously for over 500 ms.
Under condition of n002 (operation method selection) > 4, the Inverter has not received
the normal data from serial communication after power ON. Refer to 8.1 Fault
Diagnosis and Corrective Actions for verification/change of the constant.
Inverter overheat pre-alarm signal is input from control circuit terminal.
Continuous operation is selected at MEMOBUS transmission error. Refer to 8.1 Fault
Diagnosis and Corrective Actions for verification of the constant.
Inverter kVA setting error.
One of the following setting errors occurred in the multi-function contact input selection
(n035 to n039):
•
Two or more of the same values are set.
•
Both 15 and 16 are set at the same time.
•
Both 22 and 25 are set at the same time.
Setting error of n012 to n018 (V/f data).
One of the following setting errors occurred:
• Inverter rated current 5 0.1 > n032 (motor rated current), or n032 > Inverter rated
current 5 2.
n058 (jump frequency 1) > n059 (jump frequency 2) − n60 (jump frequency range).
•
n030 (output frequency upper limit) < n031 (output frequency lower limit).
•
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Chapter 8: Troubleshooting
Explanation
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