Detcon 1600A-N1R - Manual (Page 6)

1600A-N1R
1600A-N1R Instruction Manual Rev. 0.1 Page 2 of 38
2.0 System Configuration
2.1 Hardware Configurations
The Model 1600A-N1R is a “user configurable” alarm controller platform. The basic 1600A-N1R Controller
includes the NEMA 1 19” Rack Mount enclosure with Controller Module (including display), Power Supply,
two AC and one DC breakers, and DC over-voltage protection module. NOTE: I/O modules are factory
installed unless specifically instructed otherwise. A maximum of 1 I/O modules will fit on the standard N1P
enclosure. I/O Modules are purchased separately.
The available Detcon I/O modules include:
Model DA-4 – Four channel analog 4-20mA input module
Model RL-4 – Four channel relay output module
Model AO-4 – Four channel analog 4-20mA output module
Model DI-4 – Four channel contact input module
Detcon I/O modules are individually addressable and operate on 11.5-30 VDC. Each module communicates
with the controller via the RS-485 Modbus™ RTU protocol. Only 10 I/O modules can be mounted in the N1P
enclosure. Other modules need to be mounted in separate enclosures.
Figure 2 System Configurations
2.2 Programming Configuration
The 1600A controllers are normally configured at Detcon based on application specific information provided
by the customer on the Configuration Form. It must be verified that the correct quantity and type of I/O
modules have been purchased to support the customer’s configuration requirements. On the Configuration
Form, the customer should supply all site-specific information pertaining to:
1) Number of gas channels
2) Range, units, and gas type for each channel
3) Alarm level(s) for each gas channel
4) Tag Name for each channel
5) Assignment and set-up information for each relay contact