GESTRA LRR 1-60, Original Installation & Operating Manual

Page: 13 / 32

13 LRR 1-60 - Installation & Operating Manual -
819692-00
Technical data
Supply voltage
■ ■
24 V DC +/-20 %
Power consumption
■ ■
max. 5 VA
Current input
■ ■
max. 0.3 A
Required external fuse
■ ■
0.5 A M
Input/output
■ ■
Interface for CAN bus to ISO 11898, CANopen, insulated
Inputs
■ ■
1 x analogue 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, contact material **
■ ◆
Maximum switching current - 8 A at 250 V AC / 30 V DC - cos
ϕ
= 1
■ ■
MIN/MAX alarm *
■ ◆
2 x volt-free relay contacts, contact material **
■ ◆
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, intermittent blowdown valve, contact material **
■ ◆
1 x volt-free relay contact, MAX alarm, contact material **
* Inductive loads must have interference suppression (RC combination) as per the manufacturer's
specification
** Contact material AgNi0.15, AgSnO2
Analogue output
■ ■
1 x actual value output 4 - 20 mA, e.g. for an actual value display
■ ■
Max. load resistance 500
W
■ ■
Inductive loads must have interference suppression (RC combination) as per the manufacturer's
specification
Technical data
Supply voltage
■ ■
24 V DC +/-20 %
Power consumption
■ ■
max. 5 VA
Current input
■ ■
max. 0.3 A
Required external fuse
■ ■
0.5 A M
Input/output
■ ■
Interface for CAN bus to ISO 11898, CANopen, insulated
Inputs
■ ■
1 x analogue 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)
MIN/MAX alarm or
MAX alarm and MIN relay as automatic intermittent blowdown
■ ■
4 x volt-free relay contacts
■ ■
Maximum switching current - 8 A at 250 V AC / 30 V DC - cos
ϕ
= 1
■ ■
Contact material AgNi0.15, AgSnO2
■ ■
Inductive loads must have interference suppression (RC combination) as per the manufacturer's
specification
Analogue output
■ ■
1 x actual value output 4 - 20 mA, e.g. for an actual value display
■ ■
Max. load resistance 500
W