4.2.4 Dry Contact Port J8
The dry contact port J8 is shown in Figure 4.7 below and described in Table 4.7 below. The dry contact voltages are 24
Vdc/250 Vac, and the current is 5 A.
F igu re 4.7 Dry co n tact po rt J 8
Port
Pin
D efault s ig nal
1. Bypass Backfeed
J8-1
Normally open. Closed when bypass has backfeed
J8-3
Bypass backfeed protection relay common
J8-5
Normally closed. Open when bypass has backfeed
2. Input Backfeed
J8-2
Normally open. Closed when rectifier has backfeed
J8-4
Rectifier backfeed protection relay common
J8-6
Normally closed. Open when rectifier has backfeed
T able 4.7 Descriptio n o f dry co n tact po rt J 8
4 Electrical Installation
47
Vertiv™ Liebert® APM Plus User Manual
Содержание APM 0250kMK16FN02000
Страница 1: ...Vertiv Liebert APM Plus User Manual 50 250 kVA UPS...
Страница 8: ...vi This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 16: ...1 Important Safety Instructions 8 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 30: ...2 Overview 22 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 60: ...4 Electrical Installation 52 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 73: ...Figure 5 11 Customize the display 5 Operator Control and Display Panel 65 Vertiv Liebert APM Plus User Manual...
Страница 97: ...5 Operator Control and Display Panel 89 Vertiv Liebert APM Plus User Manual...
Страница 154: ...Figure 8 8 LBS port J4 on bypass control module 8 Parallel System and LBS System 146 Vertiv Liebert APM Plus User Manual...
Страница 182: ...11 Service and Maintenance 174 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 188: ...12 Specifications 180 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Страница 191: ...Vertiv Liebert APM Plus User Manual...