ISB-89/1 INTRINSICALLY SAFE LOCKING SYSTEM

ISB-89/1

CERTIFICATE:

The ISB-89/1 intrinsically safe interlock system is used to control drives of mining machines and devices.

DESCRIPTION

The ISB-89/1 system consists of the following devices:

• intrinsically safe lock indicator SBI-89/1 (1 piece always placed at the beginning of the system)

• intrinsically safe pass-through signalling device SPI-89/1 (max. 99 pieces)

• intrinsically safe mains power supply ZSI-94/1 (1 piece).

The maximum span of the system is 10 km. The number of pass-through signals used depends on the concept of the system construction and the distance needed between the signals.

Features:

shutting down and blocking the start-up of mining machines and devices,
transmission line continuity check,
location of the drive shutdown point,
location of the damaged section of the transmission line.

FEATURES/TECHNICAL SPECIFICATION

Transmission line
connecting cable	3x1.5mm2
maximum line length	10km
Parameters
frequency of variable signals on wire "B"	from 25 to 35 Hz
variable signal level	2Vpp ± 0.5Vpp
repetition rate	6 – 10 sec.
rated supply voltage	Uzn = 15 V DC + 0.5- 1.5 V
Protection class SBI-89/1 and SPI-89/1	IP54
Operating temperature range	from +5°C to +40°C
Dimensions and weight of the SBI-89/1 signalling device	320 x 156 x 115 mm, approx. 5 kg
Dimensions and weight of the SPI-89/1 signalling device	316 x 255 x 130 mm, approx. 6.5 kg

Input and output circuit parameters:
SIGNALING DEVICE SBI-89/1
power supply (P+, P0)	Ui = 15.8V, Li = 0, Ci = 0
input (B, 0)	Uo = 9.6 V, Io = 7 mA, Lo = 20 mH, Co = 2 µF
output (HV, HV, HND)	Ui = 60 V, Ii = 0.2 A, Li = 0, Ci = 0
line power supply (Z+, 0)	Uo = 15.8 V, Io = 77 mA, Li = 10 mH, Ci = 2 µF
SIGNALING DEVICE SPI-89/1
power supply (Z+, 0)	Ui = 15.8V, Li = 0, Ci = 0
input (B, 0)	UI = 15.8 V, Ii = 8 mA, Li = 0, Ci = 0
input (RW,0)	Ui = 15.8 V, Ii = 14 mA, Li = 0, Ci = 0