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16
Heat-Timer Corp.
connectIng extensIon panels
• The Mini-MOD is equipped with a 6-pin phone socket (RS485) to connect to extension panels. The Mini-MOD Extension is
equipped with two 6-pin phone sockets to connect to Mini-MOD and an additional Mini-MOD Extension.
• Set each Extension to a different letter (EXT-A or EXT-B). The Mini-MOD will assign the stage letters based on the extension letter
selected.
• Extension A will have its stage and Power LEDs Green. However, Extension B will have the LEDs Red. See "Mini-MOD-
Extension Layout" on page 7.
• Configure the Output Types (See "Output Type" on page 17.) after connecting the Extension panels to be able to configure their
outputs.
• Only use the cable provided.
• Connection cable is provided as part of the Mini-MOD Extension package.
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 12VA MAX
Use Copper Conductors Only.
CAUTION
: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
Connecting Mini-MOD to
Two Extension Panels
using RS485
To set the Mini-Extension to a specific letter,
remove the wiring cover and switch the Ext A/Ext B
to the desired letter. DO NOT set both extensions
to the same letter as it may cause errors.
Mini-MOD
Mini-MOD
Full Modulation Sequencing Control
SYSTEM
A
B
---
---
C
D
DO NOT APPLY ANY VOLTAGE
PROGRAM
RUN
TO INPUT TERMINALS
alert
Mini-MOD Extension A
Extension Module
Full Modulation Sequencing Extension
E
K
F
L
G
M
H
N
I
O
J
P
Comm
Power
CAUTION:
More than one disconnect switch may be required
to de-energize the equipment before servicing.
Ext A
Ext B
E
K
F
L
G
M
PWR
E
K
F
L
G
M
H
N
I
O
J
P
CUR / VLT
CUR / VLT
CUR / VLT
L N
GND
mA
VLT
GND
mA
VLT
GND
GND
mA
GND
21
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15
16
17
16
18
19
20
19
22
Mini-MOD Extension B
Extension Module
Full Modulation Sequencing Extension
E
K
F
L
G
M
H
N
I
O
J
P
Comm
Power
CAUTION:
More than one disconnect switch may be required
to de-energize the equipment before servicing.
Ext A
Ext B
E
K
F
L
G
M
PWR
E
K
F
L
G
M
H
N
I
O
J
P
CUR / VLT
CUR / VLT
CUR / VLT
L N
GND
mA
VLT
GND
GND
mA
VLT
GND
GND
mA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15
16
17
16
18
19
20
19
21
22
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
Risk of Electric Shock.
H
N
I
O
J
P
EXTENSION
MODULE
CUR / VLT
CUR / VLT
CUR / VLT
VLT
GND
mA
VLT
GND
mA
VLT
GND
mA
VLT
GND
GND
RS-485
23
22
24
25
26
27
28
29
16
30
31
32
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
Risk of Electric Shock.
H
N
I
O
J
P
EXTENSION
CUR / VLT
CUR / VLT
CUR / VLT
MODULE
VLT
GND
GND
mA
VLT
GND
mA
VLT
GND
GND
mA
VLT
RS-485
23
24
22
25
26
27
28
29
30
16
31
32
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