Chapter 7 - Troubleshooting the Impulse

Symptom

Possible Causes

Possible Remedies

6 LED flashes

Internal Fan or Heatsink Tunnel is

Remove obstruction (clean by blow-

(Over Temperature Fault)

clogged or restricted (internal temp.

ing shop air through the tunnel.

 

has exceeded 68° C (154° F).

 

 

 

 

 

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

At power-up the drive tests the in-

The fault can be cleared by issuing a

(EEPROM Checksum Fault)

tegrity of its non-volatile memory by

default configuration from Applica-

 

computing a checksum. This fault

tion Developer and then reconfigur-

 

indicates an abnormal or defective

ing the drive for the target motor. If

 

condition in the drive.

the fault recurs, the drive is definitely

 

An error occured during download

defective. The user should not be

 

able to cause this fault inadvertently

 

or EEPROM write.

through any combination of com-

 

 

mands or actions.

 

 

 

Limits Tables

Velocity Limits at ALL RESOLUTIONS are:

Min = 0.00002 RPS

Max = 100 RPS

Acceleration and Deceleration Limits are the following:

Step

Accel/ Decel Limits

Resolution

 

 

Min (RPS2)

Max (RPS2)

 

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

 

 

 

7-3

Page 93
Image 93
Impulse PCW-5181 user manual Limits Tables