Ametek DPA1 Series Installation, Operation And Troubleshooting Instructions page 38

Trouble Shooting
d. Excessive Vibration. A significant degree of pitched or unpitched vibration can cause numerous problems.
If vibration is isolated as a probably cause of improper operation, standard vibration isolation mounting
techniques should be employed.
5-7. INPUT POWER AND LOAD CONNECTIONS.
5-8. Turn off the power to the DPA-1 and check all DPA-1 power connections, input and output, to be
mechanically secure and free of corrosion. Make the same checks at the power source and at the load.
Visibly check insulation on input and load wiring to be free of damage or evidence of overheating.
5-9. LOAD PROBLEMS OR PROCESS CONTROLLER PROBLEMS.
5-10. One (or both0 of these problems is considered to exist if the DPA-1 operates properly without the
normal load or process controller connected. Proceed as follows:
Note: The DPA-1 may be originally supplied with fuses with identifying numbers different than shown below.
In such case, the fuse may be replaced with an identical fuse, or with the replacement fuse listed below.
DPA-1
MODEL NO.
DCPA1-2415 A25X30
DCPA1-2425 A25X30
DCPA1-2425 (6) A25X30
DCPA1-2430 A25X30
DCPA1-2440 (6) A25X60
DCPA1-2450 A25X60
DCPA1-2455 (6) A25X70
DCPA1-2470 (6) A25X70
DCPA1-2475 (6) A25X100
DCPA1-2400 (6) A25X100 (1)
DCPA1-4030 A60X30
DCPA1-4050 A70P60
DCPA1-4070 (6) A70P70
DCPA1-4090 (6) A70P100
DCPA1-4825 (6) A60X30
DCPA1-4830 A60X20
DCPA1-4840 (6) A70P60
DCPA1-4850 A70P60
DCPA1-4855 (6) A70P70
DCPA1-4870 (6) A70P70
DCPA1-4875 (6) A70P100
DCPA1-4890 (6) A70P100
DCPA1-6030 A60X30
DCPA1-6050 A70P60
DCPA1-6070 (6) A70P70
DCPA1-6090 (6) A70P100
(1) A70P or A25Z types may also be used; last two or three number digits must be the same as those of
the type listed.
(2) Consult factory.
(3) A25X or A25Z types may also be used; however, the fuse support standoff location must be changed,
which requires access to the rear of the rack panel. The last two or three number digits must be
same as those of the type listed.
(4) A30X30 type may also be used.
(5) Serial Numbers starting 77 or higher may use KAC30 fuse.
(6) These models are no longer being produced.
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Table 5-1 Replacement Fuses for DPA-1 Power Controllers
CHASE SHAWMUT
FUSE NO.
(1) (4)
(4)
AMETEK HDR Power Systems
BUSSMAN INTERNATIONAL RECTIFIER
FUSE NO. (FOR EXPOER MODELS ONLY)
KAX30
KAX30
KAX30
KAX30
(2)
(2)
KAC25 (5)
(2)
(2)
KAC25 (5)
(2)
(2)
KAC25 (5)
(2)
(2)
(2)
Phase/AMP Series DPA1/DCPA1
SF25X30
SF25X30
SF25X30
SF25X30
SF25X60
SF25X60
SF25X60
SF25X70
SF25X100
SF25X100
SF70P60
SF70P70
SF70P100
SF70P60
SF70P60
SF70P60
SF70P70
SF70P100
SF70P100
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SF70P60
SF70P70
SF70P100
Document 9100030