tycoPSU830 POWER SUPPLY AND BATTERY CHARGER

„ Earth (ground fault), operates on the 0V, 5V, 27V and 

40V rails. Sensitivity varies with rail with respect to 

earth 

– 40V and Loop SIG < 300kohm 

– 27V < 100 kohm 

– 0V and Loop RTN < 22kohm 

DESIGN PLANNING 

Cables are to be selected in accordance with Publication 

17A-02-D and the requirements of local regulations/ code 

of practise. 

All the terminals at CON3 will accept cable up to 2.5mm2. 

To comply with EN54.2 and EN54.4 it is recommend that 

the batteries are installed in housing adjacent to the 

PSU830 and not further than 2 metres from it. All cabling 

between the PSU830 and the batteries housings must be 

protected, preferably with metal conduit, in order to provide 

adequate mechanical and EMI immunity. 

Battery resistance fault monitoring includes the connecting 

leads, < 0.1ohm, cabling must be used. The battery temperature thermistor lead assembly may be extended if 

required, thermistors must not be swapped between units. 

The PSU housing must be positioned so that convection 

cooling is unrestricted. For installations where this is not 

possible, e.g. installing T2000 fire panel into a console 

would require fan cooling of the console and/or large apertures in the T2000 housing to assist cooling of the fire 

panel within the console. 

If DC units 8800 is exceeded then a second PSU830 is 

required this provides power to the second and third 

XLM800 and is connected the same way as a PSB800 

supplied with PSB800K.

USING PSU830 WITH MX 

DESIGNER

Fire panels using modules FIM802 and XLM800 the MX 

Digital addressable loop load is defined in MX Designer, 

summary below: 

In early versions of MX Designer only PSB800 is available. 

When PSB800 is selected it is possible to determine 

PSU830 power supply loading as each loop may be loaded 

above the DC units Red warning value, provided that the 

value does not exceed 2200 DC units per loop and 8800 

DC units per PSU830. The voltage drop and AC units Red 

warning values stay the same and cannot be ignored. This 

means that in many situations a single PSU830 can be 

used where previously a combination of PSB800 and 

PSB800K were required.

DUAL PSU 

In dual PSU configuration only the charger outputs of the 

PSU830 are in parallel, all other outputs remain separate, 

i.e. 2 x 5V, 4 x 27V, 2X 40V and must not be connected 

together. For optimum operational life the panel loading 

should be divided equally between the PSU830s wherever 

possible (although not essential). MX Designer may be 

used to assist in loading of the PSU830. 

For dual PSU configuration 0V connection between units 

must be made in addition to BT+ and BT-. Cable assembly 

must be fitted between CON6 on each unit to provide fault 

monitoring. It is necessary to use PTM800 to provide wiring interconnect terminal block from the auxiliary PSU830 

to loads such as XLM800. 

17Ah battery set must not be connected in dual PSU configuration due to possibility of overcharging. 

PRODUCTS REQUIRED FOR 

INSTALLATION OF SECOND 

PSU830 

All items required for installation of second PSU830 are 

available using FG number 557.202.044 PSU830K. 

PSU830K consists of the following items:

„ 557.202.210 PSU830 Power Supply 

„ 557.201.232 PTM800 Power Terminal Module 

„ 557.201.231 PSU830 Dual Power Supply Kit

INSTALLATION, GENERAL POINTS

„ For MX2, ZX4, ZX4BB panels the second (auxiliary) 

PSU830 is installed on top of the first (primary) 

PSU830. 

„ For MX4000 and MX4000BB, panels the auxiliary 

PSU830 is installed in the battery housing. The distance between the housings is constrained by the length 

of the interconnecting cables. The recommended 

installation is battery housing beneath fire panel.

„ Connection of primary and auxiliary AC power leads is 

via a distribution block supplied with kit 557.201.231. 

The external AC supply is connected to a socket which is 

mated with distribution block. 

„ If FB800 fuseboard is required it may be mounted on 

small chassis plate above the batteries or on top of auxiliary PSU830, if the latter then PTM800 must be 

mounted on the side of the PSU830. 

„ The PTM800 should be mounted on the top of the 

PSU830 for MX4000 and MX4000BB panels. For 

ZX4 and ZX4BB it can either be mounted on top or on 

the left hand side with restricted access. For MX2 it 

would be sited on the left hand side.

„ For the ZX4 and ZX4BB panels, nylon cable ties are 

required to attach the distribution block to the metal 

bracket inside the panel housing. 

„ Monitoring of the auxiliary PSU830 is provided by ribbon cable connected between both power supplies.

„ Battery capacity must not be less than 38Ah when dual 

PSU830 is used as there is possibility of overcharging 

with smaller capacity batteries.

CONFIGURATION 

HEADERS AND LINKS 

The PSU830 has three headers to which are fitted jumper