44
TRIPS - DIAGNOSTICS
Powerdrive MD2S Installation guide
4972 en - 2017.08 / d
No.
Parameter-
setting interface
name
Reason for trip
Solution
24
Motor PTC
Opening of the PTC input of the PX1
terminal block or T1 and T2 inputs of the
MDX-ENCODER option
• Check the ambient temperature around the motor.
• Check that the motor current is less than the stated current.
• Check the thermal sensor wiring.
26
Overload
+ 24V
Overload on the +24 V power supply or
digital outputs
Check the I/O wiring.
28
AI2 loss
Loss of the current reference on
analog input AI2
Check the input wiring and source.
29
AI3 loss
Loss of the current reference on
analog input AI3
30
COM loss
Loss of communication on the P2
connector serial link
• Check the cable connections.
• Check that parameter
11.63
is compatible with the timing
of requests from the master.
31
EEPROM
Number of write cycles to EEPROM
exceeded (>1,000,000)
• Change the control board.
• Check the recurrence of write cycles from the drive
controller.
33 Stator resistance
Trip during measurement of the
stator resistance
Check the motor wiring.
34
Fieldbus loss
Disconnection of the fieldbus during
operation or timing error
• Check the fieldbus connections.
• Check that parameter
15.07
is compatible with the timing
of requests from the master.
35
STO inputs
Simultaneous opening of both STO (Safe
Torque Off) inputs during operation
Check the remote control link.
37
Encoder break
One of the encoder feedback data items is
missing
• Check the encoder wiring.
• Check the encoder connections.
38
Breakdown
Breakdown of synchronous motor in
sensorless closed loop mode
Check the menu
5
parameters are compatible with the
values on the motor nameplate
39
Mains synchro
Not used
41
User 1
User trip 1 triggered by
10.61
.
• See
10.61
.
42
User 2
User trip 2 triggered by
10.63
.
• See
10.63
.
43
User 3
User trip 3 triggered by
10.65
.
• See
10.65
.
44
User 4
User trip 4 triggered by
10.67
.
• See
10.67
.
45
User 5
User trip 5 triggered by the serial link
10.38
= 45
• See
10.38
.
46
User 6
User trip 6 triggered by the serial link
10.38
= 46
47
User 7
User trip 7 triggered by the serial link
10.38
= 47
48
User 8
User trip 8 triggered by the serial link
10.38
= 48
49
User 9
User trip 9 triggered by the serial link
10.38
= 49
50
User 10
User trip 10 triggered by the serial link
10.38
= 50
51
DO2 MDX-I/O
over ld
The DO2 output load current (MDX-I/O
option) is >200 mA
Check that DO2 is not short-circuited.