Honeywell H-S81-HS User Manual

H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015 37
Central Unit Rack Parts of the H-S81-HS System
Technical Features
2.2 Central Unit Rack
The central unit includes a central processing unit (CPU) with the relevant bus, the display module
and the module for default I/O control. It has the function of processing the data received from the
modules and controlling the operator interface and the communication with supervisory systems.
• Input voltage: 22-28 VDC
• Max. absorbed current: 8A
• Free-air operating temperature: -5 °C - 50 °C
• Relative humidity: 93% non-condensing
• Efficiency: > 83%
• Protection class: IP20
• Dimensions: 128mm x 40mm x 250mm
• Flammability: UL94V2
• Battery voltage: 26.2 to 28.7 VDC, compensated automatically
• Battery current: (4/6A) Adjustable through dip switch
• VBAT Ripple: < 100mV pK-pK at maximum current
• Resistance to mains voltage dips: >=20mS at maximum current (with PU-A0008)
• Maximum battery capacity: 120 Ah
• Maximum current to batteries: Limited automatically
• Current to the load: 50A External fuse
• Protections: Over-voltage, short circuit, and battery reverse polarity
• CPD reference standards: EN54-4
• EC reference standards: EN50081-2 and EN50082-2 (industrial environment)
Figure 2.6 Central Unit Rack

Honeywell H-S81-HS Specifications

General

Brand	Honeywell
Model	H-S81-HS
Category	Control Panel
Language	English