Gac Esd2200 series User manual

ESD2200 Electronic Speed Control Unit 10.14.16 PIB 1022 D

S/N :

ESD2210-

ABCDEFGH

ACTUATORPICK-UP

BATTERY

SPEED TRIM

OVERNORS

MERICA

ORP.

CAUTION

ENGINE SPEED

CONTROL COMPONENT.

WHEN INSTALLING OR

SERVICING REFER TO

PRODUCT PUBLICATION.

MADE IN AGAWAM, MA U.S.A.

E1 E2 E3

SPEED E4

GAIN

STABILITY

3.97

2.50

0.62

4.62

(16)

(117)

(101)

(64)

(102)

4.00

Ø0.20

(5)

ESD2200 Series

Speed Control Unit

1SPECIFICATIONS

PERFORMANCE

Isochronous Operation ± 0.25% or better

Speed Range / Governor 1 - 7.5 KHz Continuous

Speed Drift with

Temperature ±1% Maximum

Speed Trim Range ± 250 Hz

Terminal “A” Sensitivity 130 Hz. ±15 Hz./Volt @ 5.1K Impedance

INPUT / OUTPUT

DC Supply 12-24 VDC ±30% Battery Systems

Transient and Reverse Voltage Protected

Polarity Negative Ground (Case Isolated)

Power Consumption 60mA continuous plus actuator current

Actuator Current

@ 77°F (25°C) 10A Max Continuous

Speed Sensor Signal 1.0 - 50 Volts RMS

RELIABILITY

Vibration 5G @ 20-500 Hz

Testing Functionally Tested

ENVIRONMENTAL

Ambient Temperature -40° to 85°C (-40 to 185°F)

Relative Humidity up to 100%

All Surface Finishes Fungus-Proof and Corrosion-Resistant

PHYSICAL

Dimension See Section 2 “Installation”

Weight 12 oz. (347 grams)

Mounting Any Position, Vertical Preferred

2INSTALLATION

Dimensions:

(mm)

Mount in a cabinet, engine

enclosure, or sealed metal box.

Vertical orientation allows for

the draining of ﬂuids in moist

environments. Avoid Extreme Heat

Reverse voltage is protected against by a parallel diode. A 15 Amp

fuse must be installed in the positive battery lead. See Section 3.

NOTE An overspeed shutdown device, independent of the governor

system, should be provided to prevent loss of engine control,

which may cause personal injury or equipment damage.

WARNING

COMPLIANCE / STANDARDS

Agency: CE, (EMC: EN55011, EN55014, EN55022, EN60034 & EN61000)

ESD2200 Electronic Speed Control Unit 10.14.16 PIB 1022 D

3WIRING

ABCDEFGH

ACTUATORPICK-UP

BATTERY

SPEED TRIM

OPTIONAL

SPEED TRIM

CONTROL

15A

FUSE

BATTERY

ACTUATOR

MAGNETIC

SPEED PICK-UP

STARTING THE ENGINE

ADJUSTING FOR STABILITY

The speed control unit governed speed setting is factory set at approximately

engine idle speed. (1000 Hz., Speed sensor signal or 600 RPM)

Crank the engine with DC power applied to the governor system. The actuator

will energize to the maximum fuel position until the engine starts. The governor

system should control the engine at a low idle speed. If the engine is unstable

after starting, refer to Section 5 ADJUSTING FOR STABILITY.

START FUEL ADJUSTMENT

1. Rotate the GAIN adjustment clockwise until instability develops. Gradu-

ally move the adjustment counterclockwise until stability returns. Move

the adjustment one division further counterclockwise to insure stable

performance (270° pot).

2. Rotate the STABILITY adjustment clockwise until instability develops.

Gradually move the adjustment counterclockwise until stability returns.

Move the adjustment one division further to insure stable performance

(270° pot).

3. Gain and stability adjustments may require minor changes after engine

load is applied. Normally, adjustments made at no load achieve satis-

factory performance.

Gain Middle Position

Stability Middle Position

Speed Trim Control

(Infused)

Middle Position

IMPORTANT Make sure the following adjustments are set before starting

the engine.

The governed speed set point is increased by clockwise rotation of

the SPEED adjustment control. Remote speed adjustment can be

obtained with an optional 5K Speed Trim Control.

NOTE

Once the engine is running at operating speed and at no load, the following

governor performance adjustments can be made to increase engine stability.

TERMINAL DEFINITION NOTES

A & B Speed Trim #18 AWG (1.3mm sq) or larger wire

C & D

Magnetic Speed

Pickup

(D is ground)

Wires must be twisted and/or shielded

for their entire length

Gap between speed sensor and gear

teeth should not be smaller than 0.02 in.

(.51mm)

Speed sensor voltage should be at least

1V AC RMS during crank

E & F Battery Power (+/-)

#16 AWG (1.3mm sw) or larger wire

A 15 amp fuse must be installed in the

positive battery lead to protect against

reverse voltage

Battery positive (+) input is Terminal E

G & H Actuator (+/-) #16 AWG (1.3mm sw) or larger wire

RECOMMENDATIONS

Shielded cable should be used for all external connections to the ESD

control.

One end of each shield, including the speed sensor shield, should be

grounded to a single point on the ESD case.

If instability cannot be corrected or further performance improve-

ments are required, refer to Section 6 SYSTEM TROUBLE-

SHOOTING.

NOTE

SPEED GAIN

STABILITY

SPEED GAIN

STABILITY

Versions Voltage

Part Number Feature / Product Details 12V 24V

ESD2210 Standard Unit X X

ESD2241 Standard Unit with Idle X

ESD2243 For Hoist FT/Operates with Foot Pedal,

5000 Hz Speed Range X

ESD2244 Light Force (Low-Current Optimized PID) X X

25x

TORQE

ESD2100 Electronic Speed Control Unit 10.14.16 PIB 1022 D

If unsuccessful in solving issue, contact GAC for assistance.

GAC@governors-america.com or call: 1-413-233-1888

UNSATISFACTORY PERFORMANCE

SYMPTOM NORMAL READING PROBABLE CAUSE OF

ABNORMAL READING

Engine Overspeeds 1. Do Not Crank. Apply DC power to the governor

system.

After the actuator goes to full fuel, disconnect the speed sensor at

Terminal C & D. If the actuator is still at full fuel-speed then the speed

control unit is defective.

If the actuator is at minimum fuel position and there exists an

erroneous position signal, then check speed sensor cable.

2. Manually hold the engine at the desired running

speed. Measure the DC voltage between Termi-

nals H(-) & E(+) on the speed control unit.

If the voltage reading is

1.0 to 1.5 VDC:

a. SPEED adjustment is set

above desired speed

b. Defective speed control unit

If voltage reading is above 1.5 VDC then check for:

a. actuator binding

b. linkage binding

Set point of overspeed shutdown set too low.

If the voltage reading is

below 0.8 VDC:

a. Defective speed control unit

Actuator does not energize

fully

1. Measure voltage between Terminals H(-) & E(+)

on the speed control unit. Should be 0.8 to 1.5

volts.

Replace the battery if weak or undersized.

Actuator wiring incorrect.

If the voltage is less than 1.5V:

a. SPEED set too low.

2. Momentarily connect Terminals E to H. The

actuator should move to the full fuel position.

Actuator or battery wiring in error

Actuator or linkage binding

Defective actuator

Engine remains below de-

sired governed speed

1. Measure the actuator output, Terminals G & H,

while running under governor control.

If voltage measurement is within

1.5 VDC of the battery supply voltage

level, then fuel control is restricted from reaching full fuel position,

possibly due to mechanical governor, carburetor spring, or linkage

interference.

If not, increase speed setting.

6SYSTEM TROUBLESHOOTING

If the engine governing system does not function, the fault may be determined by performing the voltage tests described in Steps 1 through 4. Positive (+) and nega-

tive (-) refer to meter polarity. Should normal values be indicated during troubleshooting steps, and then the fault may be with the actuator or the wiring to the actuator.

Tests are performed with battery power on and the engine off, except where noted. See actuator publication for testing procedure on the actuator.

SYSTEM INOPERATIVE

STEP WIRES NORMAL READING PROBABLE CAUSE OF

ABNORMAL READING

1 E(+) & F(-)

Battery Supply

Voltage

(12, 24, or 32 VDC)

DC battery power not connected. Check for blown fuse.

Low battery voltage

Wiring error

2 A(+) & B(-) 0-3.9 with speed trim. 7.1-7.9 with-

out speed trim.

Speed trim shorted or miswired.

Defective unit.

3 C(+) & D(-) 1.0 VAC minimum while cranking

Gap between speed sensor and gear teeth too great.

Improper or defective wiring to the speed sensor. Resistance should be between 30 to 1200

ohms.

Defective speed sensor.

4 H(-) & E(+) 0.8-1.5 V while cranking

Wiring error to actuator.

Defective speed control unit.

Defective actuator.

ESD2100 Electronic Speed Control Unit 09.06.16 PIB 1022 D

INSTABILITY

INSTABILITY SYMPTOM PROBABLE CAUSE OF

ABNORMAL READING

Fast Periodic The engine seems to jitter

with a 3Hz or faster irregulari-

ty of speed.

Remove the E1 to E2 jumper. Readjust GAIN and Stability afterward.

Jumper between E4 and E5 may be removed to further stabilize the system.

Turn off other electrical equipment that may be causing interference.

Slow Periodic An irregularity of speed below

3Hz.

Readjust the GAIN and STABILITY

Adjust the DEAD TIME COMPENSATION by adding a capacitor from posts E2 to E3 (negative on E2).

Start with 10 mfds. and increase until instability is eliminated.

Check fuel system linkage during engine operation for:

a. binding

b. high friction

c. poor linkage

Non-Periodic Erratic Engine Behavior 1.

Increasing the GAIN should reduce the instability but not totaly correct it.

If this is the case, there is most likely a problem with the engine itself.

Check for:

a. engine mis-ﬁrings

b. an erratic fuel system

c. load changes on the generator set

voltage regulator.

If throttle is slghtly erratic, but performance is fast, then removing the jumper from E4 to E5 will tend to

steady the system.

720 Silver Street,

Agawam, MA 01001 USA

GAC@governors-america.com

www.governors-america.com

A strong magnetic speed sensor signal will eliminate the possibility of missed or extra pulses. The speed control unit will govern well with 0.5 volts RMS speed sensor

signal. A speed sensor signal of 3 VAC or greater at governed speed is recommended. Measurement of the signal is made at Terminals C and D.

The amplitude of the speed sensor signal can be raised by reducing the gap between the speed sensor tip and the engine ring gear. The gap should not be any small-

er than 0.020 in (0.45 mm). When the engine is stopped, back the speed sensor out by 3/4 turn after touching the ring gear tooth to achieve a satisfactory air gap.

INSUFFICIENT MAGNETIC SPEED SIGNAL

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