Maintenance-Related Alarms
LUB LOW
Description
Lubrication oil level low.
Importance
Ignoring lubrication alarms can destroy:
Ball screws
Linear guides
Bearings
Immediate Action
Refill lubrication reservoir and verify pump operation.
AIR PRESS LOW
Description
Compressed air pressure below machine requirement.
Common Effects
Tool clamp failure
Turret lock issues
Sheet clamp malfunction
Required Pressure
Usually:
6 to 8 bar
(depending on model)
Common Euromac Controller Types
Fanuc-Controlled Euromac Machines
Typical alarms:
SV alarms
OT alarms
PS alarms
APZ warnings
Most common on:
Older ZX and CX machines
Siemens-Controlled Euromac Machines
Typical alarms:
Drive-Cliq faults
Encoder alarms
Channel synchronization alarms
Most common on:
MTX Flex
New ZX Series
Bosch Rexroth MTX Controllers
Typical alarms:
SERCOS communication faults
Axis synchronization errors
Drive enable failures
Axis and Position Alarms
Alarm OT+ / OT- — Overtravel Alarm
Description
Axis moved beyond software or hardware limit.
Causes
Wrong program coordinates
Incorrect work offset
Homing failure
Limit switch malfunction
Recovery Procedure
Enter manual jog mode
Move axis away from limit
Re-home machine
Restart CNC
Alarm REF NOT FOUND
Description
Machine unable to detect reference/home position.
Common Causes
Dirty home sensor
Encoder position loss
Axis stopped before homing completed
Typical Solution
Clean reference sensor
Perform manual reference return
Check encoder signal
CNC Programming Alarms
Alarm 028 — Illegal G-Code
Description
Unsupported CNC command detected.
Examples
Wrong G-code format
Unsupported canned cycle
Incorrect syntax
Typical Fix
Correct the NC program using controller-compatible codes.
Alarm 050 — Feedrate Missing
Description
Motion command executed without feedrate value.
Example
G01 X100 Y50
Missing:
F500
Alarm TV ERROR
Description
Tape format or block formatting error.
Common Causes
Corrupted NC file
Wrong post processor
Invalid line endings
Communication and Electrical Alarms
Alarm COM ERR
Description
Communication lost between CNC and machine modules.
Causes
Loose communication cable
PLC communication failure
Network module fault
Power interruption
Common on
MTX Flex
Siemens-controlled machines
Alarm PLC TIMEOUT
Description
PLC failed to respond within expected time.
Possible Causes
PLC overload
Faulty I/O module
Software crash
Turret and Tooling Alarms
Alarm E06 — Tool Indexing Failure
Description
Turret failed to rotate or lock into position.
Common Causes
Dirty turret sensor
Worn locking pin
Hydraulic indexing failure
Tool obstruction
Misaligned turret
Symptoms
Turret stops midway
Wrong tool selected
Punching offset errors
Most Affected Models
ZX Flex
BX Series
Older CX models
Alarm E11 — Tool Clamp Not Locked
Description
Tool station clamp sensor not confirming locked position.
Possible Causes
Broken spring
Pneumatic pressure loss
Sensor malfunction
Improper tool installation
Operator Action
Remove and reseat tool
Check air pressure
Inspect clamp cylinder
Hydraulic System Alarms
Alarm H01 — Hydraulic Pressure Low
Description
Hydraulic pressure below operating threshold.
Common Causes
Low hydraulic oil level
Worn hydraulic pump
Pressure relief valve failure
Oil leakage
Clogged filter
Frequently Seen On
CX Series
ZX Series
Troubleshooting
Verify oil level
Replace hydraulic filter
Check pump pressure
Inspect for leaks
Check pressure switch
Alarm H05 — Hydraulic Oil Temperature High
Description
Hydraulic oil exceeded safe operating temperature.
Causes
Cooling fan failure
Dirty oil cooler
Continuous high-load punching
Low oil quantity
Prevention
Clean cooler regularly
Replace oil periodically
Ensure adequate ventilation
2. Common Euromac Alarm Documentation
Servo System Alarms
Alarm 1001 — Servo Amplifier Fault
Description
Servo amplifier detected an internal hardware or overload condition.
Common Causes
Servo overheating
Power supply fluctuation
Shorted motor cable
Amplifier cooling fan failure
Sudden axis impact
Affected Series
ZX Series
BX Series
MTX Flex
Recommended Checks
Inspect servo amplifier LED indicators
Verify incoming 3-phase voltage
Check cooling fans
Measure motor insulation resistance
Inspect motor cables for damage
Alarm 1002 — Encoder Communication Error
Description
Axis encoder feedback signal lost or corrupted.
Common Causes
Loose encoder connector
Damaged encoder cable
Electrical noise
Encoder battery low
Failed encoder
Symptoms
Axis cannot home
Position drift
Sudden servo stop
Common Models
ZX 1250
BX 1000
CX 1000
Alarm 1003 — Axis Overload
Description
Servo motor current exceeded allowable limit.
Typical Mechanical Causes
Dry linear guides
Ball screw contamination
Axis crash
Clamp obstruction
Turret jam
Recommended Inspection
Check lubrication system
Inspect guide rails
Rotate ball screw manually
Verify sheet clamps
Error Codes, Alarm Documentation & Series Reference
Euromac manufactures several CNC turret punching machine series using different CNC controllers such as Fanuc, Siemens, Bosch Rexroth, and Euromac proprietary systems. Because of this, alarm codes differ between generations and machine series.
1. Euromac Machine Series Overview
ZX Series
Heavy-duty hydraulic CNC turret punch presses with automatic indexing stations.
Typical models:
ZX 1000
ZX 1250
ZX 1500
ZX Flex
ZX Index
Common control systems:
Siemens
Bosch Rexroth MTX
Fanuc
Typical alarm groups:
Servo alarms
Hydraulic alarms
Turret indexing alarms
Clamp positioning alarms
BX Series
Compact CNC turret punching machines intended for medium production.
Typical models:
BX 750
BX 1000
BX Plus
Common faults:
Tool station errors
Axis homing alarms
Sheet clamp alarms
Encoder communication faults
CX Series
Older Euromac hydraulic turret punch presses.
Typical models:
CX 750/30
CX 1000/30
CX 1250
Common issues:
Hydraulic pressure alarms
Relay board failures
Turret sensor faults
DC servo drive alarms
MTX Flex Series
Modern servo-electric and hybrid systems.
Typical models:
MTX Flex 6
MTX Flex 12
MTX Plus Flex
Common alarms:
EtherCAT communication alarms
Servo synchronization faults
Tool recognition errors
Brush table positioning alarms
