Monicon Instruments GTR-168 User manual
Monicon Tech.
Ver.:V168007 1
GTR-168
Controller Description
GTR-168 is low cost but multi-function diesel engine generator controller. It applies a
key switch and provides 3 kinds of operation mode: Manual, Auto, Off. No special training is
required due to the easy operation. Fault protection includes: Emergency stop, Over speed,
High water temperature, Low oil pressure, and Over crank. GTR-168 also displays the low
battery voltage warring, and indicates the running status and power status.GTR-168 equips
with high firm continental-type terminal that provides easy plug in and removal.
Furthermore, GTR-168 has 10 pins Dip switch for adjusting parameter according to system
requirements, and make it not only reducing stock but also meeting the various system
specifications. GTR-168 build-in 5 output powers relays which perform high power capacity
reach to 5 Amp (DC) that saves the wring for connection with extra power relays. No matter
in function, protection or operation performance. GTR-168 is your best choice.
2. Profile
A、LED Indication
Emergency / Auxiliary Shutdown
Low Battery Warning
Over Speed Shutdown
High Water Temperature Shutdown
Low Oil Pressure Shutdown
Over Crank
Run
Power Fig.1 168 Front Panel
B、Operation Key Switch
ATS
Auto Start function by detect ATS terminal 12 grounded.
Off
Stop running engine or stand still / Reset Alarm.
Manual
Manual start engine directly.
Monicon Tech.
Ver.:V168007 2
GTR-168
3. Back Panel Function Description
Fig. 2 GTR-168 Controller Back Panel
List 1 GTR-168 Terminal
Number Description Code
1 Input power (Battery +) ++
2 Ground (Battery -) GND
3 Output starter relay Motor
4 Output fuel valve relay Valve
5 Output alarm relay Alarm
6 Output stop relay Stop
7 Idle/Pre-heat relay PreHeat
8 Charge fire point Charge
9 Aux. switch shutdown Em.Stop
10 Input , High water temp. H.W.T.
11 Input, Low oil press. L.O.P.
12 Input , Auto start ATS
13 Input , Frequency detect terminal F.D1
Europium Style Connector
14 Input , Frequency detect terminal F.D2
Monicon Tech.
Ver.:V168007 3
GTR-168
A、Dip switch settings function
Pin 1 & Pin 2：Valve on to stop engine timer
Pin1 Pin2 Valve on stop engine delay
OFF OFF 5 sec
ON OFF 10 sec
OFF ON 15 sec
ON ON 20 sec
List 2 Stop Period
Pin3：System frequency【ON：50Hz；OFF：60Hz】
Pin4：Escape motor by oil pressure switch【ON：Enable；OFF：Disable】
Pin5：Pressure switch type【ON：Normal Open；OFF：Normal Close】
Pin6：Idle / Pre-heat output delay time【ON：10（120）Sec；OFF：1（10）Sec】
Pin7：Low DC Volt【ON：10.5VDC；OFF：21VDC】
Pin8 & Pin9 Cooling time：
Pin8 Pin9 Cooling time
OFF OFF 0 Sec
ON OFF 60 Sec
OFF ON 150 Sec
ON ON 300 Sec
List 3 Cooling Time
Pin10：Idle / Pre-heat Function Select【ON：Idle；OFF：Pre-heat】
4. Case Dimension
Fig. 3 GTR-168 Case Dimension of Back View Fig. 3 GTR-168 Case Dimension of Back View
Monicon Tech.
Ver.:V168007 4
GTR-168
5. Specifications
DC supply：
8~36 VDC
Power Consumption：
Max.5 W
Measuring Frequency：
0～75 Hz (min AC Volt. 5V ; max AC Volt. 300V)
Relay Output ：
Start output：5A
Valve output：5A
Idle / Pre-heat output：5A
Alarm Output：5A
Stop output：5A
Ambient Temperature Range：
-30 ℃～70 ℃
Dimension (W * H * D)：
72mm × 72 mm × 58 mm
Panel cut-out (W * H)：
68 mm × 68 mm
Weight：
190 g (0.42 lb.)
6. Protections and parameters：
Auxiliary shutdown protection: 1 Sec., Normal Close
Low battery warning: 5 Sec., 10.5 / 21 VDC
Over speed protection: 2 Sec., 55/66 Hz
High water temp. protection: 2 Sec., Normal Open
Low oil pressure protection: 2 Sec., Normal Open / Normal Close
Over crank: 3 attempts
Cranking speed up limited: 0.5 Sec., 16Hz
Safety on timer: 5 Sec (*)
(*) All alarms are ignored until safety on timer expired, except the emergency stop and over speed.
Monicon Tech.
Ver.:V168007 5
GTR-168
7. Remark (UL File E319081)
z“Maximum Surrounding Air Temperature 60℃”
z“For Use on a Flat Surface of a Type 1 Enclosure” or equivalent statement.
zInstructions for installation in a Pollution Degree 2 environment.
zUnless the proper wiring connections are plainly evident, wiring terminals
shall be marked, or the device shall be provided with suitable wiring diagram
to indicate the connections.
8. Controller Wiring Example
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