Emerson I-0168 Service Manual

Bettis Canada Ltd.4112 91A StreetEdmonton, Alberta, Canada T6E 5V2Tel: (403) 450-3600Fax: (403) 450-1400Edmonton SERVICE MANUAL No. I-0168MULTIPORT

10MULTIPORT ELECTRONIC CONTROLLER continued...Any time during the movement of the valve, whether by remote commands in REMOTEmode, or by the STEP/JOG

11MULTIPORT ELECTRONIC CONTROLLER continued...I. DISABLING PORT POSITIONSCAUTION: Always ground yourself before and while touching the jumpers to prev

12MULTIPORT ELECTRONIC CONTROLLER continued...5. Mount encoder torque plate (21) to optical encoder (20) using screws (22) with the openslot opposite

19IV TROUBLESHOOTINGA. Actuator does not align plug to port.1. If alignment is off only at one or two ports but the rest are aligned, then refer to as

2I INTRODUCTIONThe Multiport Electronic Controller (MEC) replaces the SW28 Switchpak, for the MultiportSelector Valve. This service manual is intende

(I-0168--.wpd/20 orig:ap/ps-1996-08-13 rev2:dy/ar-1997-12-03 app dist:(EF)O);(SM)P) V MULTIPORT ELECTRONIC CONTROLLER NOTES

3ACTUATOR ASSEMBLY continued . . .5. See the typical drawing for Switchpak SW20N assembly on page 15, and the typicalwiring diagrams on page 16 for DC

5III MULTIPORT ELECTRONIC CONTROLLERA. INTRODUCTIONThe Bettis Multiport Electronic Controller (MEC) consists of a motor, Switchpak modelSW20N, optiona

MULTIPORT ELECTRONIC CONTROLLER continued...6D. COMMUNICATIONS1. ASCII BASED PROTOCOL/RS-232 CONNECTIONThe standard communications protocol for the ME

MULTIPORT ELECTRONIC CONTROLLER continued...72. MODBUS RTU PROTOCOL/RS-485 CONNECTION• Modbus RTU mode communications• Supports unit address 1 to 250•

MULTIPORT ELECTRONIC CONTROLLER continued...8Register40003Read disable positions.- Bits 1 to 8 indidacte which positions are disabled.Register40004Rea

9MULTIPORT ELECTRONIC CONTROLLER continued...F. OPTIONS1. The optional digital display will indicate the valve position by port numbers 1 to 8. Theco