EVCO c-pro mega RACK User Manual
Page 16
C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL
Page
16
Conn.
Abbre
v.
Description
JK-3
COM 4 relay No. 4 common connection
JK-4
NO 4
relay No. 4 contact normally open
JK-5
COM 5 relay No. 5 common connection
JK-6
NO 5
relay No. 5 contact normally open
JL-1
COM 6 relay No. 6 common connection
JL-2
NO 6
relay No. 6 contact normally open
JL-3
COM 7 relay No. 7 common connection
JL-4
NO 7
relay No. 7 contact normally open
JL-5
COM 8 relay No. 8 common connection
JL-6
NO 8
relay No. 8 contact normally open
YB
PRG
not used
YC-1
RS485+
connector for connecting the RS485 serial port (RS485+)
YC-2
RS485-
connector for connecting the RS485 serial port (RS485-)
YC-3
GND
connector for connecting the RS485 serial port (ground)
JM-1
AO 1
No. 1 analogue output (0,5 .. 10 V / 0 .. 20 mA / 4 .. 20 mA)
JM-2
AO 2
No. 2 analogue output (0,5 .. 10 V / 0 .. 20 mA / 4 .. 20 mA)
JM-3
AO 3
No. 3 analogue output (0,5 .. 10 V / 0 .. 20 mA / 4 .. 20 mA)
JM-4
AO 4
No. 4 analogue output (0,5 .. 10 V / 0 .. 20 mA / 4 .. 20 mA)
JM-5
GND
analogue output common ground
C2-1
VCC*
serial port and optoisolated analogue output secondary power supply input (+15 VDC)
C2-2
GND*
secondary power supply reference
* VDC=12.5 V Imax=200 mA (as the sum of the current for all VDC terminals).
Card with 24 VAC/DC power supply
Conn.
Abbre
v.
Description
CA-1
VCC
main card power supply input (23 V AC/DC)
CA-2
VCC
main card power supply input (23 V AC/DC)
Warning:
With reference to the “Power supply” entries, the secondary power supply feeds the following
services:
•
the analogue outputs
•
the standard RS-485 port
•
the optional RS-485 port (or RS-232 port).
So that these services are optoisolated, the main power supply and the secondary power supply must
be galvanically isolated from one another.
If the controller is powered with 24 VAC/DC (i.e. by means of the connector hereinafter referred to
as CA), the following services will not be optoisolated:
•
the analogue outputs
•
the standard RS-485 port
•
the optional RS-485 port (or RS-232 port).