Watlow F4 External Event Board - Rev.B User Manual
Series f4 external event board, External event/alarm board dimensions
Series F4 External Event Board
0600-0032-0012 Rev. B (1537)
March 2005
Ev1
Ev2
Ev3
Ev4
Ev5
Ev6
Ev7
Ev8
J3
J5
J2
A007-1732-F4xx
-
+
N/C L2A L1A L1B L2B
Earth
Gnd
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
191 mm
Digital/Event
Terminal Strip
Four - 4 mm dia.
Mounting Holes
Power Terminal
Strip
Aux. Signal Conditioner - Vaisala
HMM30 can be located here. Use
Aux. Power on J5 to Power
49 mm
J4
1
9
8.0 inches
7.5 inches
1.90 inches
3
.5
in
c
h
e
s
Red Stripe
Ribbon Cable
203 mm
10 mm
24 mm
1 inch
0.43 inch
The external event output board is a multi-purpose circuit board for use with the Series F4
Ramping controllers. The Series F4 Ramping controller has 8 digital outputs that can perform
various functions including event outputs, boost outputs, and compressor control. These
outputs provide DC signals to drive devices such as Solid State Relays (SSR) or Silicon
Controlled Rectifier (SCR) power controllers. The external event board connects to these
outputs for additional output flexibility.
The external event board is available with either 2 or 8 outputs. Listed below are the three basic
output options:
1) Switched DC (A007-1732-F4C2 or C8)
This option provides a dc voltage for driving SSR and SCR power controllers similar to the
built-in output function, but with additional voltage and current capabilities.
2) SSR with contact suppression (A007-1732-F4B2 or B8)
This option provides an SSR contact capable of switching 24 to 253VAC at up to 0.5 amps.
Suppressors are contacted across the relay contacts for applications with inductive devices
such as relay coils.
3) SSR without contact suppression (A007-1732-F4K2 or K8)
This option provides an SSR contact capable of switching 24 to 253VAC at up to 0.5 amps.
These outputs are for driving resistive loads such as AC SSR inputs.
Note:
When controlling inductive loads such as relay coils, it is recommended that option 2 above
be used or add external contact suppression across the connected load.
External Event/Alarm Board Dimensions