Rockwell Automation SA500 Diagnostics, Troubleshooting Guide User Manual

Page 32

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4-12

SA500 Diagnostics, Troubleshooting, and Start-Up Guidelines

4.7.7.3 Testing Feedback Registers and Bits

This section describes how to test the feedback registers and bits. Feedback
information provided by the fault, warning, and interlock registers is described in
Appendices A, B, and C. Use the AutoMax Programming Executive software I/O
Monitor function to display the registers and bits in the format listed in table 4.3.

Step 1. Verify that register 200/1200, bit 15 is on. This bit is on when PMI operating

system has been successfully downloaded from the UDC module to the PMI.

Step 2. Check each of the inputs identified by bits 1 through 5 of register 201/1201 by

applying 115V to the appropriate pins on the Drive I/O connector on the
Resolver and Drive I/O module and verifying that the appropriate bit is on.
Refer to the SA500 Power Modules instruction manual (S-3018) for the
pinout description.

Table 4.3 – Feedback Registers and Bits

Drive A/B

Variable Name

Description

200 / 1200

Bit 15

(PMI_OK@)

Drive Status Register
PMI Operating System Loaded

201 / 1201

I/O Status Register

Bit 0

(RPI@)

Run Permissive Input

Bit 1

(M_FDBK@)

M-Contactor Feedback Input or

(AUX_IN1@)

115VAC Auxiliary Input 1

Bit 2

(AUX_IN2@)

115VAC Auxiliary Input 2

Bit 3

(AUX_IN3@)

115VAC Auxiliary Input 3

Bit 4

(AUX_IN4@)

115VAC Auxiliary Input 4

Bit 5

(AUX_IN5@)

115VAC Auxiliary Input 5

Bit 8

(STR_DET@)

External Strobe Detected

203 / 1203

Drive Warning Register

Bit 13

(WRN_RAL@)

Rail I/O Communication Error

206 / 1206

(SPD_FB%)

Speed Feedback (-4095 to +4095)

207 / 1207

(TRQ_FB%)

Torque Feedback (-4095 to +4095)

208 / 1208

(POS_FB%)

Position Feedback (-32768 to +32767)

209 / 1209

(POS_REG_OUT%)

Position Loop Output (-4095 to +4095)

211 / 1211

(I_FBN%)

Current Feedback (normalized) (-4095 to +4095)

213 / 1213

(SPD_ERR%)

Speed Error (-4095 to +4095)

214 / 1214

(USER_AIN%)

Analog Input (-2048 = -10 V to +2047 = +10V)

215 / 1215

(RES_SCN_POS%)

Resolver Scan Position (-32768 to +32767)

216 / 1216

(RES_STR_POS%)

Resolver Strobe Position (-32768 to 32767)

217 / 1217

(RPM%)

Revolutions Per Minute

218 / 1218

(POS_ERR%)

Position Error (-4095 to +4095)

219 / 1219

(SPI_OUT%)

Speed Loop P+I Output (-4095 to +4095)

220 / 1220

(WR2_COMP%)

Speed Loop Feedforward Output (-4095 to +4095)

221 / 1221

(SLP_RPM%)

RPM Slip

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