590 Series DC Digital Drive
Trips and Fault Finding
7-7
When more than one trip is to be represented at the same time then the trip codes are simply added together to form the value displayed. Within each
digit, values between 10 and 15 are displayed as letters A to F
For example, if the HEALTH WORD parameter is
01A8
then this represents a “1” in digit 3, an “8” and a “2” in
digit 2, (8+2 = 10, displayed as A) and an 8 in digit 1. This in turn represents the active trips FIELD FAILED,
ENCODER FAILED, OVER VOLTS (VA) and HEATSINK TRIP (an unlikely situation).
Using the MMI to Manage Trips
Trip Messages
Most of the alarms have a delay timer so that the Drive only trips if the condition persists for the whole of the delay period.
If the Drive trips, then the display immediately shows a message indicating the reason for the trip. The possible trip messages are given in the table
below.
Trip Message and Meaning
Possible Reason for Trip
OVERSPEED
Motor overspeed - the speed feedback signal has
exceeded 125% of rated speed.
Badly adjusted speed loop (alarm only operates with encoder or armature volts
feedback selected)
Alarm time delay : 50 milliseconds
MISSING PULSE
A missing pulse from the 6-pulse armature current
waveform. This trip is only enabled when the motor
loading exceeds 1.5 times the DISCONTINUOUS
parameter value.
Note that the MISSING PULSE trip is not intended or
able to protect the drive if a thyristor fails to function
during regenerative operation. This can result in
damage to the drive.
We recommend fusing the armature circuit if
regenerative operation is intended. The MISSING
PULSE trip is intended to detect firing circuit
connector problems during motoring operation of
the drive.
Firing plug failure
Connection failure
Alarm time delay : 60 seconds
Decimal number
Display
10 A
11 B
12 C
13 D
14 E
15 F
Summary of Contents for 590C
Page 1: ...DC590 series Digital Drive HA467078U001 Issue 2 Product Manual...
Page 2: ...Cont 2...
Page 13: ...Cont 12...
Page 15: ...1 2 Getting Started 590 Series DC Digital Drive...
Page 19: ...2 2 Product Overview 590 Series DC Digital Drive...
Page 25: ...2 8 Product Overview 590 Series DC Digital Drive...
Page 27: ...3 2 Installing the Drive 590 Series DC Digital Drive...
Page 66: ...590 Series DC Digital Drive Installing the Drive 3 41 Figure 3 11 110A 150A Stack Assembly...
Page 67: ...3 42 Installing the Drive 590 Series DC Digital Drive Figure 3 12 180A Stack Assembly...
Page 68: ...590 Series DC Digital Drive Installing the Drive 3 43 Figure 3 13 270A Stack Assembly...
Page 83: ...3 58 Installing the Drive 590 Series DC Digital Drive...
Page 85: ...4 2 Operating the Drive 590 Series DC Digital Drive...
Page 113: ...4 30 Operating the Drive 590 Series DC Digital Drive...
Page 115: ...5 2 Control Loops 590 Series DC Digital Drive...
Page 123: ...6 2 The MAN MACHINE INTERFACE MMI 590 Series DC Digital Drive...
Page 129: ...6 8 The MAN MACHINE INTERFACE MMI 590 Series DC Digital Drive The Menu System Map...
Page 145: ...7 2 Trips and Fault Finding 590 Series DC Digital Drive...
Page 157: ...7 14 Trips and Fault Finding 590 Series DC Digital Drive...
Page 159: ...8 2 Routine Maintenance and Repair 590 Series DC Digital Drive...
Page 165: ...A 2 Serial Communications 590 Series DC Digital Drive...
Page 197: ...B 2 Certification 590 Series DC Digital Drive...
Page 211: ...B 16 Certification 590 Series DC Digital Drive...
Page 213: ...C 2 Parameter Specification Tables 590 Series DC Digital Drive...
Page 373: ...D 124 Programming 590 Series DC Digital Drive Programming Block Diagram Sheet 1...
Page 374: ...590 Series DC Digital Drive Programming D 125 Programming Block Diagram Sheet 2...
Page 375: ...D 126 Programming 590 Series DC Digital Drive Programming Block Diagram Sheet 3...
Page 381: ...E 2 Technical Specifications 590 Series DC Digital Drive...