Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 38)

L1: Motor Protection ........................................................................................................................ 182
L2: Momentary Power Loss Ride-Thru............................................................................................ 183
L3: Stall Prevention ......................................................................................................................... 184
L4: Reference Detection.................................................................................................................. 186
L5: Fault Restart.............................................................................................................................. 187
L6: Torque Detection....................................................................................................................... 190
L8: Drive Protection......................................................................................................................... 192
5.9 n: Special Adjustments.....................................................................................................194
n1: Hunting Prevention.................................................................................................................... 194
n3: Overexcitation Braking .............................................................................................................. 194
5.10 o: Operator-Related Settings ...........................................................................................195
o1: HOA Keypad Display Selection................................................................................................. 195
o2: HOA Keypad Functions............................................................................................................. 196
o4: Maintenance Monitor Settings................................................................................................... 196
5.11 S: Special Parameters.......................................................................................................198
S1: Dynamic Audible Noise Control Function ................................................................................. 198
S2: Sequence Timers...................................................................................................................... 199
Examples of Sequence Timers ....................................................................................................... 201
5.12 T: Motor Tuning .................................................................................................................205
5.13 U: Monitor Parameters......................................................................................................206
UB: Bypass Monitors....................................................................................................................... 206
U1: Operation Status Monitors ........................................................................................................ 206
U2: Fault Trace................................................................................................................................ 206
U3: Fault History.............................................................................................................................. 206
U4: Maintenance Monitors .............................................................................................................. 206
U5: PID Monitors ............................................................................................................................. 206
U9: Power Monitors......................................................................................................................... 206
5.14 Z: Bypass Parameters.......................................................................................................207
Z1: Bypass Control System............................................................................................................. 207
Z2: Bypass Control Input/Output ..................................................................................................... 216
Z3: Bypass Control Communication................................................................................................ 220
Z4: Ethernet Option Bypass Control................................................................................................ 223
6. DIAGNOSTICS & TROUBLESHOOTING ............................................................ 227
6.1 Section Safety....................................................................................................................228
6.2 Motor Performance Fine-Tuning......................................................................................230
Fine-Tuning V/f Control ................................................................................................................... 230
Parameters to Minimize Motor Hunting and Oscillation .................................................................. 230
6.3 Drive Alarms, Faults, and Errors .....................................................................................231
Types of Alarms, Faults, and Errors................................................................................................ 231
Alarm and Error Displays ................................................................................................................ 232
6.4 Fault Detection ..................................................................................................................235
Fault Displays, Causes, and Possible Solutions ............................................................................. 235
6.5 Alarm Detection.................................................................................................................251
Alarm Codes, Causes, and Possible Solutions ............................................................................... 251
6.6 Operator Programming Errors .........................................................................................259
Operator Programming Error Codes, Causes, and Possible Solutions........................................... 259
6.7 Auto-Tuning Fault Detection ............................................................................................262
Table of Contents
38 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual