GESTRA LRR 1-52 Original Installation & Operating Manual

16 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00
Technical data for the LRR 1-52, LRR 1-53
Supply voltage
■
24 V DC +/-20%; PELV / CLASS2
Power consumption
■
Max. 5 W
Current input
■
Max. 0.3 A
Reset hysteresis
■
MAX limit: - 3% of set MAX limit (factory default)
■
MIN limit: + 3% of set MIN limit (factory default)
Fuse
■
M0.5A (medium time-lag)
Input/output
■
Interface for data exchange with the URB 55 visual display and operating unit
Inputs
■
1 x analog input for potentiometer 0 - 1000W, two-wire connection (indication of valve position)
■
1 x volt-free input 24V DC (standby) for inputting an external command
Control OFF / Valve CLOSED / Intermittent blowdown OFF
Outputs
■
Continuous blowdown valve (CLOSED/OPEN) *
◆ 2 x volt-free relay contacts (changeover relays) **
◆ Maximum switching current - 8A at 250V AC / 30V DC - cos ϕ = 1 **
■
MIN/MAX alarm *
◆ 2 x volt-free relay contacts (changeover relays) **
◆ Maximum switching current - 8A at 250V AC / 30V DC - cos ϕ = 1 **
or
■
MAX alarm and MIN relay as intermittent blowdown valve *
◆ 1 x volt-free relay contact (changeover relay) - intermittent blowdown valve **
◆ 1 x volt-free relay contact (changeover relay) - MAX alarm **
* Inductive loads must have interference suppression (RC combination) as specified by the
manufacturer.
** Contact material AgNi0.15, AgSnO2
Analog output
■
1 x actual value output 4 - 20mA, e.g., for indicating the actual value
■
Max. load resistance 500W
■
Inductive loads must have interference suppression (RC combination) as specified by the
manufacturer

GESTRA LRR 1-52 Specifications

General

Brand	GESTRA
Model	LRR 1-52
Category	Controller
Language	English