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ManualsBrandsAllen-Bradley ManualsHome building and Decor1770-M11

Chapter 2 Module Description

2-10 ADVANCED MICRO CONTROLS INC

Error Messages (continued)

Reference Voltage Fault

A 1700 module stores adjustment constants in the nvRAM memory that

allow it to set the reference voltage for either AMCI or Autotech trans-

ducers. Usually, these constants can be restored automatically when a

nvRAM fault is cleared. If the restoration fails, the module displays this

“reference error” message. Make sure a working transducer is properly

attached to the module and press the >CLEAR@ key. The module will

then recalculate the constants. If the message remains after pressing the

>CLEAR@ key, contact AMCI. See the inside front cover, 24 Hour

Technical Support Number, for more information on contacting AMCI.

Transducer Input Connector

The transducer input connector of a 1731, 1732, 1741, or 1742 module has eight contacts

while the connector of a 1733, 1734, 1743, or 1744 module has fourteen contacts. The fol-

lowing table lists the AMCI and Phoenix Contact part numbers on the mating connectors.

8 Pin Connector 14 Pin Connector

AMCI Part #

MS-8 MS-14

Phoenix Part #

MSTB2.5/8-ST-5.08

1757077

MSTB2.5/14-ST-5.08

1757132

Table 2.1 Transducer Input Connector

Figure 2.21 shows the pinout to industry standard resolver wire designations. Cabling

information for AMCI and Autotech transducers is given in chapter 3, starting on page 3-8,

Transducer Cable Installation.

hý

CH –

Channel Number

hý

R1/R2 –

Reference Winding

hý

S1/S3 –

COS Winding

hý

S2/S4 –

SIN Winding

PLC SERIES

Figure 2.20

Reference Voltage

Fault

S3, CH4

S4, CH4

S3, CH3

S4, CH3

S1 & S2, CH3 & CH4

CH3 & CH4 Shields

S3, CH2

S4, CH2

S3, CH1

S4, CH1

S1 & S2, CH1 & CH2

CH1 & CH2 Shields

R2, All Channels

R1, All Channels

Figure 2.21 Transducer Input

Connector