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1. ERRS2 Control system
24VDCEmergency power supply from ship
16 - 36 VDC Max. 0.5A
Term. D1 to +24VDC
Term. E1 to 0VDC
ERU1
ERU4
ERU3
ERU2
ERU5
ERU6
ERU7
ERU8
ERU9
ERU10
INPUT 1
INPUT 2
INPUT 3
INPUT 4
Alarm relay output. Normally closed contact
Max.24VDC 1,0A
Relay output 1, COM-NO-NC
Max. 24VDC 1,0A
Relay output 2, COM-NO-NC
Max. 24VDC 1,0A
Connection box
See sheet 2, 3 and 4 for further details!
H20 ERU release unit
No machining is allowed on the enclosure!
IMPORTANT!
Ground Connection Device
For ground connection of cable screen and
the ERRS2 control system see specifications
on sheet 4
Inputs can be of the following types:
- Closing contact
- Alternating contact (with broken circuit detection)
- Intelligent input from input sensor (serial communication)
Type of input is set at system configuration before delivery.
IMPORTANT!
Connet cable screens at the EMC cable glands on
the ERRS CP2 enclosure, see instructions on sheet 2
NOT USED IN THIS CONFIGURATION
Terminal C13 (RS485A)
Terminal C14 (RS485B)
Terminal C15 (RS485A)
Terminal C16 (RS485B)
Terminal C17 (GND)
Communication between ERRS2 control panels
See page 3 for details
Drawn Checked Approved
Date: (yyyy-mm-dd)
Sheet
Scale
Draw.No.
Tel.: +46 31 709 65 50
A3
ERRS2001-238 REV 1
JoUn 2022-04-20
1:1
Rev.: 1
JoUn
FrJa
Sheet1 4
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Description
ERRS CP2 WIRING DIAGRAM
Dumi - ship: Jadran & Biokovo
CONTROL PANEL, ID = 0, SB and PS

2. INSTALLATION SPECIFICATIONS FOR THE ERRS2 CONTROL PANEL
ENCLOSURE:
Never do any machining on the ERRS2 enclosure as this will reduce the corrosion protection of the enclosure and void the guarantee for the ERRS2 system!
CONNECTION TERMINALS:
Max. cable area 2.5 mm2
POWER SUPPLY:
Voltage: 16 - 36 VDC, 0.5 A. FUSE: 1.0 AF 5X20 mm (fast) glass tube fuse.
NETWORK ADDRESS:
Switch 1 is used to give each control panel its own network address. Default setting 0. Available addresses 0 - 7.
SPECIAL CONFIGURATIONS:
Switch 2 -1 and switch 2 - 2 is used to set optional special configurations for the ERRS2 system. Default setting off.
BACKUP BATTERY:
The backup battery is a 6 VDC rechargeable accumulator. Disconnect the battery if the emergency power
supply is switched off in order to increase battery life. The battery shall be changed after 5 years or earlier if a low battery
warning is indicated on the system display.
EMC CABLE GLANDS:
The ERRS2 enclosure can be equipped with a total of 12 EMC cable glands. All cable glands have to be of EMC type that terminates the cable screen in the cable gland.
10 pc´s Cable gland M16x1.5: max. cable diameter 10 mm
2 pc´s Cable gland M20x1.5: Max. cable diameter 14 mm
Special cable glands for bigger diameter cables can on request be supplied by HAMMAR.
In the case that the number of available cable glands is not sufficient a cable with a higher number of wires can be used.
Outputs can be grouped together in the same cable.
Inputs can be grouped together in the same cable.
Relay outputs and Alarm outputs can be grouped together in the same cable.
Use external connection boxes to split the cable to the different targets.
Special cable glands for bigger diameter cables can on request be supplied by HAMMAR.
CABLES, CABLE SCREENS AND SYSTEM GROUND CONNECTION:
Do not install cables for the ERRS2 system in cable groves containing high voltage cables. Screened marine approved cables shall be used for the installation.
Important! All cable screens shall be terminated in the EMC cable glands on the ERRS2 enclosure.
The screen for the 24VDC power supply cable shall also be connected to ground in the GROUND CONNECTION DEVICE, see details on sheet 4. The other end of all other cable
screens shall be isolated from ground connection!
CABLES FOR OUTPUTS: Maximum length 150 meter.
For cables with a length of maximum 75 meter use 2x0.75 mm2 screened cable.
For cables with a length of 75 to 150 meter use 2x1.5 mm2 screened cable.
CABLES FOR RELAY OUTPUTS: Maximum length 150 meter.
For cables with a length of maximum 75 meter use 2x0.75 mm2 screened cable.
For cables with a length of 75 to 150 meter use 2x1.5 mm2 screened cable.
CABLES FOR INPUTS: Maximum length 150 meter.
Use 2x0.75 mm2 or 3x0.75 mm2 screened cable. See specifications on Sheet 3.
CABLE FOR 24VDC POWER SUPPLY: Maximum length 150 meter.
For cables with a length of maximum 75 meter use 2x0.75 mm2 screened cable.
For cables with a length of 75 to 150 meter use 2x1.5 mm2 screened cable.
Important! See Sheet 4 for specifications regarding the cable screen ground connection!
CABLE FOR ALARM OUTPUT: Maximum length 150 meter.
Use 2x0.75 mm2 screened cable.
CABLE FOR COMMUNICATION BETWEEN CONTROL PANELS: Maximum length 1000 meter.
For cable with a length of maximum 500 meter use 2x2x0.5 mm2 twisted pair, screened cable.
For cable with a length of 500 to 1000 meter use 2x2x0.75 mm2 twisted pair, screened cable.
Important! Connect the screen for the communication cable in one end only! The other end of the
cable screen shall be isolated from ground connection.
Drawn Checked Approved
Date: (yyyy-mm-dd)
Sheet
Scale
Draw.No.
Tel.: +46 31 709 65 50
A3
ERRS2001-238 REV 1
JoUn 2022-04-20
1:1
Rev.: 1
JoUn
FrJa
Sheet2 4
of
Material
A A
B B
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D D
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Description
Surface Finish:
ERRS CP2 WIRING DIAGRAM
Dumi - ship: Jadran & Biokovo
CONTROL PANEL, ID = 0, SB and PS

3. WIRING SPECIFICATIONS
Drawn Checked Approved
Date: (yyyy-mm-dd)
Sheet
Scale
Draw.No.
Tel.: +46 31 709 65 50
A3
ERRS2001-238 REV 1
JoUn 2022-04-20
1:1
Rev.: 1
JoUn
FrJa
Sheet3 4
of
Material
A A
B B
C C
D D
6
6
5
5
4
4
3
3
2
2
1
1
Description
Surface Finish:
ERRS CP2 WIRING DIAGRAM
Dumi - ship: Jadran & Biokovo
CONTROL PANEL, ID = 0, SB and PS

4. IMPORTANT!
ERRS2 control system enclosure and cable screen connection to ships ground
A good connection to the ships ground of the ERRS2 enclosure and the screens of the installed cables is important for the correct function of the ERRS2 control system. To ensure a good ground connection a
"GROUND CONNECTION DEVICE" shall be installed on the power supply cable near the ERRS2 enclosure. The cable length between the "GROUND CONNECTION DEVICE" and the ERRS2 enclosure shall not be
more than 4 meter. If it is not suitable to install the device on the power supply cable the "GROUND CONNECTION DEVICE" can instead be installed on one of the other cables connected to the ERRS2 enclosure.
The cable length between the ERRS2 enclosure and the device shall still not be more than 4 meter.
If the power supply cable is no longer than 4 meter the screen can be connected to ground at the 24VDC switchboard where the cable is connected.
SELECT THE CORRECT "GROUND CONNECTION DEVICE"
The "GROUND CONNECTION DEVICE" is available in two sizes:
GROUND CONNECTION DEVICE M20
To be used with cables with a diameter of 6 - 12 mm, and a screen with a diameter of 4,5 - 10 mm.
GROUND CONNECTION DEVICE M25
To be used with cables with a diameter of 12 - 18 mm, and a screen with a diameter of 7 - 14 mm.
INSTALLATION OF "GROUND CONNECTION DEVICE":
Bolt the device to the ships metal structure in such a way that a good permanent electrical connection is ensured between the device
and the ships metal structure.
Pass the cable through the device. Remove a length of about 20 - 30 mm of the outer isolation of the cable in such a way that the
cable screen is left electrically unprotected. Position the unprotected section of the cable screen in the device so the contact fingers (inside
the EMC cable gland) in the device will be in the middle of the unprotected section of the cable and in good connection with the cable screen.
Tighten the compression nuts on the cable glands to fix the cable in the device.
Connect the cable to the ERRS2 enclosure and make sure that the cable screen is connected properly in the EMC cable gland
on the ERRS2 enclosure. Connect the wires to the terminals in the ERRS2 enclosure.
GROUND CONNECTION DEVICE
Drawn Checked Approved
Date: (yyyy-mm-dd)
Sheet
Scale
Draw.No.
Tel.: +46 31 709 65 50
A3
ERRS2001-238 REV 1
JoUn 2022-04-20
1:1
Rev.: 1
JoUn
FrJa
Sheet4 4
of
Material
A A
B B
C C
D D
6
6
5
5
4
4
3
3
2
2
1
1
Description
Surface Finish:
ERRS CP2 WIRING DIAGRAM
Dumi - ship: Jadran & Biokovo
CONTROL PANEL, ID = 0, SB and PS