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JK 720
Toshiba JK 720 User Manual
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Document:
OH01
Issued:
TOSHIBA
INSTRUCTIONS
OPERATION
MAINTENANCE
JK
Medium
Voltage
Controllers
Maximum
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
2
Table of Contents
Default Chapter
3
Table of Contents
3
Safety
7
Receiving and Handling
8
Receiving and Unpacking
8
Handling and Moving
8
Using a Forklift
9
Overhead Lifting
9
Contactor Carriage Handling
10
Storage
11
Preparation
11
Indoor Equipment
11
Outdoor Equipment
11
Routine Inspection
12
G E N E R a L D E S C R I P T I O
13
Construction
13
Controller Compartment
14
Isolation Switch
14
Withdrawable Contactor Carriage
14
Service Drawer
16
Load Receptacle and Current Transformers
16
Outgoing Load Connections
17
General 3
18
Control Power Transformer
19
Operating Handle
20
Interlocks Mechanical
20
Door Interlock
20
Handle Interlock
21
Vacuum Contactor Interlock
21
Interlocks Electrical
22
Control Power Interlock
22
Test Power Interlock
22
Low Voltage Compartment
23
Main Bus Compartment
23
Wiring.
23
Prepared Spaces
24
Contactor Ratings
25
Controller Ratings
26
Installation
28
Rating Verification
28
Location
28
Service Conditions
28
Installation Site Preparation
29
Mounting
29
Grounding
30
Connections
32
Incoming Line
34
Outgoing Load
34
Pre-Energizationcheck
35
General
35
W I R I N
36
Electrical Checks
38
Operation
39
Contactor Installation
39
Initial Energization 3
40
Maintenance
42
Maintenance Record
42
General Inspection
43
Electrical Joints
44
Contactor Carriage
44
Isolation Switch
45
Switch Handle Mechanism
46
Interlocks
47
Load Receptacle
47
Control Power Transformer
48
Maintenance after a Fault Condition
49
Enclosure
49
Isolation Switch
49
Fuse Clips
49
Terminals and Internal Conductors
49
Overload Relays
49
Vacuum Contactor
50
Return to Service
50
Warranty and Limitation of Liability
51
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Instruction Manual
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Toshiba JK 720 Specifications
General
Type
Programmable Logic Controller (PLC)
Output Voltage
24V DC
Number of Inputs
16
Number of Outputs
16
Memory Capacity
8 KB
Operating Temperature
0°C to 55°C
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