User Manual - PolyGard
®
CO SPC-1110
Page
6
PolyGard
is a registered trademark of MSR
SPC1110I01
Phone (858) 578-7887 & (888) GO IN
TEC
Fax (858) 578-4633 & (888) FX IN
TEC
Specification subject to change without notice.
IN
TEC
Controls, Inc., P.O. Box 12506, La Jolla, CA 92039
www.inteccontrols.com
Printed in USA 040401
4 Electrical Connection
4.1 Instructions
Note:
Electrostatic discharge (ESD) may damage electronic components. During wiring, open the cover only when
completely grounded via grounding strap or standing on conductive floor.
•
Connections should be made without any power applied to conductors.
•
Installation of the electrical wiring should be according to the connection diagram and only performed by a
trained specialist.
•
For the 1-5 VDC analog output signal use shielded cable to avoid any influence from external interference.
•
Recommended cable: 18 AWG shielded, maximum resistance 20.8
Ω
/1000 ft (73
Ω
/1000 m)
•
Cable for power and relay outputs do not need to be shielded.
Power terminal block X1
Connector H
120 VAC 50/60Hz (24V AC/DC without transformer)
Connector N
0 VAC/DC
Connector G
Earth ground
Motherboard terminal strip X2
Connector 1
1-5 VDC sensor output signal (common)*
Connector 2
1-5 VDC sensor output signal (positive)
Connector 3
Power supply 24 VAC
Connector 4
0 VAC/DC
Connector 5
Power supply 24 VDC (19 - 28 VDC)
Connector
*
Note:
When the SPC analog output signal is conntected to an external controller, the controller’s analog input must
provide isolation for the 1-5 VDC signal. If the 1-5 VDC signal is used, then remove Jumper JP1 located on the
motherboard.
Motherboard terminal strip X3
(relay output without optional time delay relay 1K1)
:
Connector 1-2
R1, low alarm relay activates the 1K1 relay via internal wiring
Connector 3
Connector 4
Connector 5
NO
NC
COM
R2, high alarm relay activates the 1K2 relay via internal wiring
Connector 6-7
R3, potential free contact for remote alarming
Connector 8-9
R4, potential free contact for remote fail-safe alarming
Low alarm relay socket 1K1 (DPDT)
Contact set 1 of DPDT Contact set 2 of DPDT
Connector 5
Connector 1
Connector 9
Connector 8
Connector 4
Connector 12
NO
NC
COM
