Due to changes from our supplier, we regret that the System IV and ELC 5 control systems are no longer available. However, the less expensive T6 control system can be used as a replacement. It has more programming power- yet it's easier to understand. Trol Systems offers to assist you in translating a System IV / ELC 5 program to operate the T6.
Please call our Engineers at: 717-939-7593
Comparison of the T6 to System IV & ELC 5
| T6 | ELC 5 | System IV | |
| year of introduction | 2000 | 1993 | 1985 |
| number of inputs & voltage | 6, self powered 12vdc | 8, self powered 12vdc | 8, self powered 12vdc |
| configuration of inputs | sinking, 2 common | sinking, 4 common | sinking, 8 common |
| number, rating of outputs | 4 relay, 5amp/230vac | 8 relay, 10amp/115vac | 8 relay, 10amp/115vac |
| configuration of outputs | 1 bank of 4, all N.O. | 2 banks of 4, all N.O. | 8 individual, N.O.&N.C. |
| output leakage (off) current | none | 5ma. | 5ma. |
| expandability | 54inputs / 36outputs | 24inputs / 24outputs | not available |
| remote panel display | 8 timer/counter, 15 message | 24 timer+counter, no messages | not available |
| analog I/O expansion | 0-10v input, 0-100% output | not available | not available |
| power requirements | 115 or 230vac or 12-24vdc | 12vac (external transformer) | 12vac (external transformer) |
| max. program size | 575 steps | 24 channels | 8 channels |
| no. timers, range (seconds) | >500, .01 to 50,000 | 24, .1 to 3000 | 8, .1 to 999,999.9 |
| size in inches (LWH) | 2.2 x 3.0 x 4.3 | 9.0 x 5.75 x 1.5 | 9.0 x 5.75 x 1.5 |
| mounting | 2 screw or DIN rail | 4 screw | 4 screw |
| programming method | pocket programmer or PC | built-in | built-in |