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Chapter 7 - Troubleshooting the Impulse
7-3
Limits Tables
Velocity Limits at ALL RESOLUTIONS are:
Min = 0.00002 RPS
Max = 100 RPS
Acceleration and Deceleration Limits are the following:
6 LED flashes
(Over Temperature Fault)
Internal Fan or Heatsink Tunnel is
clogged or restricted (internal temp.
has exceeded 68° C (154° F).
Remove obstruction (clean by blow-
ing shop air through the tunnel.
Ambient air in cabinet is too hot.
The Impulse can produce 20 Watts
of heat. If multiple units are installed
next to each other, the cabinet must
be adequately ventilated to remove
heat.
The cooling fan is not turning.
Cooling fan is inoperable. Return unit
to factory for repair.
7 LED Flashes
(EEPROM Checksum Fault)
At power-up the drive tests the in-
tegrity of its non-volatile memory by
computing a checksum. This fault
indicates an abnormal or defective
condition in the drive.
An error occured during download
or EEPROM write.
The fault can be cleared by issuing a
default configuration from Applica-
tion Developer and then reconfigur-
ing the drive for the target motor. If
the fault recurs, the drive is definitely
defective. The user should not be
able to cause this fault inadvertently
through any combination of com-
mands or actions.
Symptom
Possible Causes
Possible Remedies
Step
Resolution
Accel/ Decel Limits
Min (RPS
2
)
Max (RPS
2
)
200
0.001
1000000
400
0.001
500000
1000
0.001
200000
2000
0.001
100000
5000
0.001
40000
10000
0.001
20000
18000
0.001
11110
25000
0.001
8000
25400
0.001
7874
25600
0.001
7812
36000
0.001
5555
50000
0.001
4000
50800
0.001
3937
100000
0.001
2000
Содержание Impulse PCW-5181
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