Contents 9

LVD installation in the shelf

59

Start-up procedure

60

Factory set voltage limits

60

Rectifier power-up

61

HVSD adjustment

62

Float voltage adjustment

63

Equalize voltage adjustment

63

Parallel verification

64

Low voltage disconnect (LVD)

65

Adjustment for the 50 A LVD unit Rel. 02, 02A, 3 & 3A

66

Low voltage alarm (LVA) adjustment

67

LVD/low voltage disconnect / reconnect (LVDR) adjustment

67

Rectifier replacement/add-on procedure

68

Low voltage disconnect

69

Electrical

69

Environmental

69

Storage

69

DC cabling

70

Control and monitoring signals

70

Operation

71

Test feature

71

Signal connections

71

Maintenance

73

Maintenance

73

Rectifier

73

Filter

74

Fan cooling

74

Storage

74

Power shelf

74

Low voltage disconnect

75

Troubleshooting

75

Rectifier fail alarm

75

Load sharing

76

Fan failure

76

Fan replacement procedure

76

Low voltage disconnect

78

Fault diagnosis

79

Appendix A: NT5C10BF-1 and NT5C10BP

101

Purpose

101

Application

101

FTIP application

101

Alarms

102

25A Switch Mode RectifierNT5C06B / C Installation and User Manual

Page 9
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Emerson MPR25, MPR15 Series user manual 101, Low voltage disconnect

MPR15 Series, MPR25 specifications

The Emerson MPR25 and MPR15 series are advanced pressure regulators designed for precise control and performance in various industrial applications. Known for their durability and reliability, these regulators are ideal for both gas and liquid control systems, ensuring consistent operation across a wide range of conditions.

One of the main features of the MPR series is its innovative design that utilizes a robust diaphragm mechanism. This mechanism provides a high degree of sensitivity and response time, allowing for quick adjustments and ensuring accurate pressure regulation. The regulators are available in different pressure ranges, making them versatile for various processes and systems.

The MPR25 series typically caters to applications requiring higher flow capacities. It boasts an extensive flow capacity with less pressure drop, making it suitable for demanding environments where maintaining system efficiency is crucial. This series is often used in applications such as gas distribution systems, instrumentation, and chemical processing.

On the other hand, the MPR15 series is designed for lower flow applications, providing precise pressure control in compact spaces. Despite its smaller size, it maintains excellent performance, featuring low droop characteristics that allow for consistent pressure output even with varying flow rates.

Both series incorporate advanced materials and sealing technologies to enhance their durability and resistance to harsh operating conditions. The body is commonly made from high-grade materials that ensure resistance to corrosion, allowing for longer service life and reduced maintenance needs. Additionally, the regulators feature easy-to-adjust set points, enabling operators to quickly adapt to changing process requirements.

Furthermore, the MPR25 and MPR15 series regulators are designed with safety in mind. They include built-in safety features to prevent over-pressurization, enhancing system protection and operator safety. The design also allows for easy installation and servicing, contributing to lower operational costs over time.

In summary, the Emerson MPR25 and MPR15 series pressure regulators stand out for their precision, durability, and efficiency. With their advanced diaphragm mechanism, robust construction, and user-friendly features, they meet the needs of a diverse range of industrial applications, ensuring reliable operation in every environment. Whether for high-demand or compact applications, these regulators are an excellent choice for maintaining the integrity and performance of pressure control systems.