- Engine:
- 3406E (S/N: 1MZ1-UP; 9NN1-UP)
- 3456 (S/N: CCB1-UP; CBX1-UP)
- 3508B (S/N: 1FZ1-UP; 2HW1-UP; 3LS1-UP; 4GM1-UP; 5KW1-UP; 5XM1-UP; 6PN1-UP)
- 3512B (S/N: 1GZ1-UP; 4AW1-UP; 6GW1-UP; 6PM1-UP; 6WN1-UP; 8RM1-UP)
- 3516B (S/N: 1HZ1-UP; 1NW1-UP; 3NS1-UP; 6HN1-UP; 7KM1-UP; 7RN1-UP; 8NW1-UP)
If a EMCP II or a EMCP II+ is equipped with a remote annunciator, a jumper wire must be installed in order to annunciate the "Not in Auto" alarm. A wire jumper must be installed across terminals 6 to 9 of the Engine Control Switch (ECS). However, when the 6 to 9 jumper is installed, the ECM will remain energized at all times. This process is applicable only on 3406E, 3456, 3500B, and EUI gensets. When the ECM is energized, the ECM is prevented from resetting after an emergency stop or any other reset situation.
If a jumper wire has been installed in a EUI type of genset, then the ECS that is in the EMCP can be rotated to the Off/Reset position in order to reset the GSC. However, the engine control module (ECM) will remain locked out. If a disconnect switch for the battery has not been installed, a timer can be installed in order to reset the ECM. The ECM will reset after the ECS switch is rotated to the Off/Reset position. When the ECM is reset, any potential fault condition will be reset. A restart related problem will be avoided when the ECM is reset.
Note: This timer is now installed as standard equipment on all 3500 and 3400 gensets with electronic engines that are built in Griffin. This timer has no function on mechanical engines.
Procedures
The 187-3511 Timer Gp must be reconfigured. Refer to Table 1 and Table 2.
| Table for Pin Connections | |
| Controller (Generator Set) (RMB+) |
Timer (Pin A1) |
| Engine Control Switch (Pin1) | Timer (Pin A2) |
| Controller (Generator Set) (RM1) |
Timer (Pin 15) |
| Engine Control Switch (Pin 10) | Timer (Pin 16) |
| Engine Control Switch (Pin 7) | Timer (Pin B1) |
| Timer Settings | |
| Function of Timer (Upper Dial) | Pulse Converter (Setting L) |
| Time Range (Middle Dial) | 3 Seconds |
| Delay Time (Lower Dial) | 0.7 (variable) (approximately 2 seconds) |
 | |
| Illustration 1 | g01055099 |
3500 Timer Wiring | |
 | |
| Illustration 2 | g01055111 |
3400 Timer Wiring | |
The normally closed contact of the timer should be connected between the RM1 terminal and pin 10 of the Engine Control Switch (ECS). The Normally Closed contact keeps the ECM powered until the ECS is placed into the "Off/Reset" position. The GSC must remain powered in the "Off/Reset" position in order to produce a "Not in Auto" alarm. Terminal "A1" (+24 VDC) of the timer must be wired to terminal RMB+. RMB+ is wired to Pin 6 of the ECS. This provides continuous power to the timer. Timer terminal "A2" is wired to ECS terminal 1 (negative). Wire terminal B1 of the timer to ECS switch terminal 7. The timer is setup as a Pulse Converter (Setting L).
When the ECS is moved to the "Off/Reset" position, the power is applied to Pin B1. When power is applied to Pin B1, the following actions occur:
- The relay is armed.
- The timer starts.
- The relay opens the normally closed contact. The normally closed contact is wired between terminal RM1 of the GSC and terminals 8, 9, and 10 of the ESC.
After a two second time delay is completed, the timer will return to the "shelf state" and the contact will return to the normally closed position.
On 3500 gensets, after the contact goes back to the normally closed position, +24 VDC is applied to terminal 36 on the terminal strip for the EUI. The terminal strip for the EUI is located in the generator terminal box. This will restore the input for the (ECM) key switch. Refer to Schematic, RENR4955, "3500B & 3500B High Displacement Generator Sets Electrical System".
On 3400 gensets, when the timer goes back to the normally closed position, power is restored to the following terminals:
- GSC terminal RM1
- GSC terminal RM39
- Terminal 10 in the control panel
The power on terminal 10 energizes the SR relay. The power on terminal 10 also closes the SR relay's normally open contact. When the SR relay's normally open contact closes, power is restored to the engine ECM. Refer to Schematic, RENR2477, "3456 Generator Set with EMCP II Electrical System".
Once the ECS is moved from the "Off/Reset" position to the Manual "Start" or "Auto" position, there is no change in the contacts of the timer.