Pr
o
Minent
®
Page 12
Assembly and Installation
Relay
“Fault indicating relay”
output
A fault indicating relay may be ordered optionally. It is used as the signal output when a pump
fault has been detected and to indicate the prior warning signal “liquid level low, stage 1” and
the fault signal “liquid level low, stage 2”.
Allocation of signal types to “N/O” and “N/C” relay states is selected on the basis of the identity
code descriptors.
The relay can be retrofitted and is ready to operate after inserting the relay component (see
section 6.4).
The gamma/ L is delivered ex works with default settings for a N/C relay. If an alternative switch
function is required the gamma/ L can be reprogrammed at ProMinent.
Electrical interface
•
Contact load:
250 V/2 A 50/60 Hz
•
Operating life:
> 200.000 switch cycles
“Fault indicating relay and
pacing relay” output
A fault indicating relay and pacing relay output may be ordered optionally. The pacing relay
output is electrically isolated via an optical coupler with a semiconductor switch. The second
switch is a relay as for the “fault indicating relay” variant.
The fault indicating / pacing relay can be retrofitted (see section 6.4).
The gamma/ L is delivered ex works with default settings for a N/C fault indicating relay and a
N/O pacing relay. If an alternative switch function is required the gamma/ L can be
reprogrammed at ProMinent.
Electrical interface
For semiconductor switch
For relay output
•
Residual voltage:
< 0,4 Volt at I
C
= 1 mA
•
Contact load:
•
Maximum voltage:
< 100 mA
24 V/100 mA 50/60 Hz
•
Maximum current:
24 V/DC
•
Operating life:
•
Pacing relay pulse duration: approx. 100 ms
> 200.000 switch cycles
Relay cable contact configuration
“Fault indicating relay” option
VDE cable
CSA cable
Contact
white
white
NO (normally open)
green
red
NC (normally closed)
brown
black
C (common)
“Fault indicating relay
and pacing relay” option
VDE cable
Contact
Relay
yellow
NO (normally open)
Fault indicating relay
green
C (common)
Fault indicating relay
white
NO (normally open)
Pacing relay
brown
C (common)
Pacing relay
6.4
Retrofitting relays
Delivery range:
1
relay circuit set with 2 screw fasteners
1
relay cable set with socket
1
seal
Press-out relay opening
WARNING
Disconnect gamma/ L from the mains power supply and rinse liquid end before
commencing work (see section 13)!
TAKE CARE
When preparing the opening, ensure that the punch is not forced through the
entire pump base!
Pump circuits may become damaged.
