Watlow 12LS Controller Manual de usuario descargar pdf (Pagina 13)

2-2

2.2 Control Capability

Number of Loops: 12, Dual Output.

Control Outputs: Cycle Time Proportioning, Distributed Zero Crossing, or On/Off;

all independently selectable for each loop.

Control Action: Reverse [heat] or Direct [cool], independently selectable for each

loop.

Digital Control Outputs: Nominal 5vdc at 10ma to driveoptically- isolated solid-state relays.

Cycle Time: Programmable foreach loop, 1-255 secs.

Output Resolution: 16 bits.

2.3 Digital Outputs

Number: 11

Configuration: 1 Global Alarm

9 for alarms or events.

1 not used standard PROM

2.4 Digital Inputs

Number: 9

Configuration: 8 for triggers

1 not used standard PROM

2.5 Serial Interface

Type: RS-232 or RS-485 4 wire, factory select

Isolation: RS-232: None.

RS-485: To RS-485 Specification.

Baud Rate: 2400 or 9600, menu selectable.

Protocol: Form of ANSI X3.28-1976, Compatible with Allen-Bradley PLC,

Half Duplex.

Error Check: BCC or CRC, menu selectable.

Number of Controllers: Each communications line: 32 with RS- 485, 1 with RS-232.

2.6 Power Supply

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 110 111

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Watlow 12LS Controller Manual de usuario Pagina 13