EN50

Basic Resistance Weld Timer & Components

EN50 Spec Sheet

• Timer for use with Remote Contactor / SCR
  
• Compact Unit Provides Basic Control and Programming Features
• Versatile
• Simple to Install and Use
• Available with 300 and 1200 Amp Contactors
• Provided in Kit Form

 

Features

• Multiple Weld/Multiple Current
• Up to 8 user-defined schedules
• Internal or external schedule selection
• Retraction option with maintained or momentary inputs
• 4 inputs and 4 outputs
• Seam and Roll-Spot
• Squeeze Delay
• Pulsation
• Upslope
• 2 weld intervals for Preheat / Postheat
• Counter with optional lock-out for electrode maintenance
• 2 stage foot switch
• Interlock output
• Can be used for coated materials
• Half Cycle
• Repeat and Non-Repeat
• Valve Control Relay
• Easily programmed

 

Specifications

Welding Parameters x 8

• Squeeze Delay: 0 to 99 cycles
• Squeeze: 0 to 99 cycles
• Upslope: 0 to 99 cycles
• Weld1: 0 to 99 cycles
• Heat1: 0 to 99%
• Cool1: 0 to 99 cycles
• Weld2: 1 to 99 cycles
• Heat2: 0 to 99%
• Pulses: 1 to 9
• Cool2: 0 to 99 cycles
• Hold: 0 to 99 cycles
• Off: 0 to 99 cycles
• Mode: Non-Repeat/Repea

Counter (Configuration Types 03, 05, 06, 07 and 10 only)

• Actual count: 0 to 9999
• End count: 0 to 9999
• At end of count: Stop/Continue

Configuration

Type	Mode	Operation	Schedules
00	Spot	Simple spot welding with no other functions	8
01	Spot with 2 Stage Foot Switch	Spot welding with 2 Stage Foot Switch
02	Spot with Retraction	Spot welding with an input and output for controlling gun position	4
03	Spot with Counter	Spot welding with an output that activates when count is reached	4
04	Spot with 2 Stage Foot Switch & Retraction	A combination of types 01 and 02	2
05	Spot with Counter & Retraction	A combination of types 02 and 03	2
06	Spot with 2 Stage Foot Switch & Counter	A combination of types 01 and 03	2
07	Spot with 2 Stage Foot Switch, Retraction & Counter	A combination of types 01, 02 and 03	1
08	Spot with Half Cycle	Spot welding using only one half cycle weld duration	8
09	Spot with Half Cycle & 2 Stage Foot Switch	A combination of types 08 and 01	4
10	Spot with Half Cycle & Counter	A combination of types 08 and 03	4
11	Roll-Spot	Spot welding with an output to operate motor-driven welding wheels during Off time between sequences	8
12	Seam	Uses seam wheels, motor drive and continuous or modulated current to provide seam weld	8

All Types except 05 have Interlock output to be used with ENTRON Welder Interlocks
Retraction: None, Maintained, Maintained Inverted, Momentary, Momentary Inverted
Frequency: 60/50 Hz

Environmental

• Operating Temperature: 32⁰ to 122⁰F
• Storage Temperature: -13⁰ to 158⁰F
• Operating Humidity: up to 80% (relative)
• Storage Humidity: 10% to 90%

Dimensions of Timer (only)

• Height: 4.75″
• Width: 6.25″
• Depth: 1.25″ + .75″ for connectors
• Weight: 1.5 lbs.

Power Requirements

• Voltage: 24 VDC
• Line frequency: 50/60 Hz
• Current: < 500 mA (all outputs off)

I/O Ratings

• • Inputs: < 10 mA @ 24 VDC
  • Outputs: < 500 mA @ 24 VDC
  • WELD OUT:

5 kHz; 1:10 mark/space;
first pulse 24 V;
subsequent pulses > 15 V