5-2 Inspection and Maintenance. Omron C200HG-CPU43, C200HX-CPU64, C200HX-CPU65, C200HG-CPU53, C200HG-CPU33, C200HX-CPU34, C200HG-CPU63, C200HE-CPU32, C200HW-PA204S
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Inspection and Maintenance Section 5-2
5-2 Inspection and Maintenance
5-2-1 Replacing Output Unit Fuses
The following Output Units each contain one fuse. Replace the fuse if the fuse indicator lights. The OD211, OD212, OA222, and OA224 Output Units do not have fuse indicators. Replace the fuses on these Units if outputs are not produced.
Unit Fuse indicator Capacity
(20 mm long x 5.2 mm dia.)
C200H-OD411
C200H-OD211
C200H-OD212
C200H-OD213
C200H-OA221
C200H-OA222V
C200H-OA223
C200H-OA224
Yes
No
No
Yes
Yes
No
Yes
No
250 V, 5 A
250 V, 3 A
250 V, 5 A
250 V, 3.15 A
The OD411, OD213, OA221 and OA223 Output Units also provide an external output bit that can be used to check the condition of the fuse. If bit 08 of the word allocated to the Unit is ON, the fuse is burnt out.
To replace a fuse, follow the steps below. Use only UL/CSA certified replacement fuses.
1, 2, 3...
1. Turn OFF the power to the PC.
2. Detach the terminal block by unlocking the lock levers at the top and bottom of the terminal block.
3. While pushing down the lock lever on the Backplane with a screwdriver as shown below, remove the Output Unit.
Lock lever
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Inspection and Maintenance Section 5-2
4. Using a Phillips screwdriver, remove the screw from the top of the Unit.
5. Using a flat-blade screwdriver, detach the case from the Unit.
(4)
(5)
6. Pull out the printed circuit board.
7. Insert a new fuse. A spare fuse is provided inside the rear of the case when the Unit is delivered.
Rear of the case
Spare fuse
8. Reassemble in reverse order of assembly.
Note 1. Use UL or CSA approved fuses if the UL or CSA standards must be satisfied. For further details, consult the fuse manufacturer.
2. Fuses in High-density I/O Units cannot be replaced by the user. Refer to your OMRON dealer for service.
5-2-2 Replacing Relays
Replacement Relay The following Output Units provide relay sockets that allow the Relays to be replaced if they should go bad. Use the Relay listed in the table.
Output Unit
C200H-OC221
C200H-OC222
C200H-OC223
C200H-OC224
C200H-OC225
C200H-OC222V
C200H-OC224V
C200H-OC226
Relay
G6B-1174P-FD-US
G6R-1, 24 VDC
Use the following procedure to replace a Relay.
1, 2, 3...
1. Turn OFF the power to the PC.
2. Detach the terminal block by unlocking the lock levers at the top and bottom of the terminal block.
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Inspection and Maintenance Section 5-2
3. While pushing down the lock lever on the Backplane with a screwdriver as shown below, remove the Output Unit.
Lock lever
4. Using a Phillips screwdriver, remove the screw from the top of the Unit.
5. Using a flat-blade screwdriver, detach the case from the Unit.
(4)
(5)
6. Pull out the printed circuit board. The Relays are placed on the PC boards of individual Units as shown in the figures below.
7. A Relay puller is provided inside the rear of the case when the Unit is delivered. Use the Relay puller to pull out the Relay as shown below. Insert a new
Relay.
Relays for the C200H-OC222V/OC224V/OC226V can be replaced without using the Relay puller.
Using the Relay puller, pull the Relay up and out of the socket.
Relay puller
Printed circuit board
8. Reassemble in reverse order of assembly.
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Inspection and Maintenance Section 5-2
!
Caution Check the pin arrangement before inserting a new Relay into the socket. Pins can only be inserted one way, so do not try to force them if they do not go in easily.
Applying too much force can bend the pins and render them unusable.
OC221/OC224
3
4
5
6
7
0
1
2
OC222
5
7
9
11
3
4
6
0
1
2
8
10
OC223
0
1
2
3
4
OC225
9
11
13
15
1
3
5
7
8
10
12
14
0
2
4
6
OC222V
0
2
4
6
9
10
11
1
3
5
7
8
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Inspection and Maintenance
OC224V
Section 5-2
5
6
3
4
7
0
1
2
OC226
7
9
11
13
15
1
3
5
6
8
10
12
14
0
2
4
5-2-3 Batteries
!
DANGER Batteries can burn, explode, or leak. Absolutely do not short-circuit across the terminals, attempt to recharge batteries, or take them apart, heat them, or expose them to fire.
When the battery is nearly discharged, the ERR indicator will flash and the message “BATT FAIL” will appear on the Programming Console. When this occurs, replace the battery within one week to avoid loss of data.
The normal battery service life is five years at 25
°
C. The service life will be shorten if used at higher temperatures.
The Battery Fail Flag is allocated to 25308 for the C200HX/C200HG/C200HE.
The battery comes together with its connector as a set. To replace the Battery
Set (C200H-BAT09), follow the steps below. The entire replacement must be completed within five minutes to ensure that the data will not be lost.
1, 2, 3...
1. Turn OFF the power to the PC. (If the power was not already ON, turn the power ON for at least one minute before turning the power OFF.)
2. Remove the cover from the battery compartment of the CPU Unit.
3. Remove the old Battery Set.
4. Install the new Battery Set as shown in the following diagram.
91

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