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MHD Modular UPS
Instruction Manual
Contents
MHD series
1
Presentation
4
2
2.1
Warranty conditions
Limitation of liability
5
6
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Safety
General safety instructions
Transportation and storage
Setup
Connection
Operation
Handling batteries
Maintenance, servicing and faults
7
7
7
8
9
9
10
10
4
Introduction
11
5
System description
12
6
6.1
6.2
6.3
Description of equipment – MHD Modular
Equipment elements on the front panel
Equipment elements on the rear panel
Audible alarm signals of the UPS
14
14
17
19
7
7.1
7.2
Storage and unpacking
Storing the UPS
Unpacking the UPS housing
19
19
20
8
8.1
8.2
8.3
8.4
8.5
8.6
Installing and connecting the UPS
Setup and assembly of the UPS
Replacing the power modules
Connecting the UPS
Communications connection of UPS
SNMP adapter (optional, Intelligent Slot)
Connection sequence
21
21
24
25
28
29
29
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
Operation
Operating modes and signals
Switching on the UPS
Starting the UPS
Switching off the UPS
Setup
Connecting the internal bypass
Switching off internal bypass
Telephone queries
30
30
32
33
34
35
37
38
38
10
Starting up the UPS equipment
39
11
Troubleshooting
39
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